Hp Compaq Pro 6305 Small Form Factor Pc Service And Maintain

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Maintenance and Service Guide
HP Compaq Pro 6305 Microtower Business PC
HP Compaq Pro 6305 Small Form Factor Business
PC
© Copyright 2012, 2013 Hewlett-Packard
Development Company, L.P. The information
contained herein is subject to change
without notice.
Microsoft, Windows, and Windows Vista
are either trademarks or registered
trademarks of Microsoft Corporation in the
United States and/or other countries.
The only warranties for HP products and
services are set forth in the express warranty
statements accompanying such products and
services. Nothing herein should be
construed as constituting an additional
warranty. HP shall not be liable for technical
or editorial errors or omissions contained
herein.
This document contains proprietary
information that is protected by copyright.
No part of this document may be
photocopied, reproduced, or translated to
another language without the prior written
consent of Hewlett-Packard Company.
Fourth Edition (August 2013)
First Edition (October 2012)
Document Part Number: 706894-004
About This Book
WARNING! Text set off in this manner indicates that failure to follow directions could result in bodily
harm or loss of life.
CAUTION: Text set off in this manner indicates that failure to follow directions could result in damage
to equipment or loss of information.
NOTE: Text set off in this manner provides important supplemental information.
iii
iv About This Book
Table of contents
1 Product Features ............................................................................................................... 1
Standard Configuration Features ................................................................................................ 1
Microtower (MT) Front Panel Components ................................................................................... 2
Small Form Factor (SFF) Front Panel Components ......................................................................... 3
Microtower (MT) Rear Panel Components .................................................................................... 4
Small Form Factor (SFF) Rear Panel Components .......................................................................... 5
Serial Number Location ............................................................................................................ 6
2 Activating and Customizing the Software .......................................................................... 7
Activating and customizing the software in Windows 7 ................................................................ 7
Activating the Windows operating system .................................................................... 7
Downloading Windows 7 updates .............................................................................. 8
Installing or upgrading device drivers .......................................................................... 8
Customizing the monitor display ................................................................................. 8
Activating and customizing the software in Windows 8 ................................................................ 8
Activating the Windows Operating System ................................................................... 8
Downloading Windows 8 updates .............................................................................. 9
Customizing the monitor display ................................................................................. 9
3 Computer Setup (F10) Utility ........................................................................................... 10
Computer Setup (F10) Utilities ................................................................................................. 10
Using Computer Setup (F10) Utilities .......................................................................... 11
Computer Setup—File .............................................................................................. 12
Computer Setup—Storage ........................................................................................ 13
Computer Setup—Security ........................................................................................ 16
Computer Setup—Power .......................................................................................... 21
Computer Setup—Advanced .................................................................................... 22
Recovering the Configuration Settings ....................................................................................... 24
4 Illustrated parts catalog .................................................................................................. 25
Microtower (MT) chassis spare parts ......................................................................................... 25
Computer major components .................................................................................... 25
Cables ................................................................................................................... 27
Misc parts .............................................................................................................. 28
Drives .................................................................................................................... 30
Misc boards ........................................................................................................... 30
v
Sequential part number listing ................................................................................... 31
Small Form Factor (SFF) chassis spare parts ............................................................................... 35
Computer major components .................................................................................... 35
Cables ................................................................................................................... 37
Misc parts .............................................................................................................. 38
Drives .................................................................................................................... 40
Misc boards ........................................................................................................... 40
Sequential part number listing ................................................................................... 41
5 Routine Care, SATA Drive Guidelines, and Disassembly Preparation ................................ 45
Electrostatic Discharge Information ........................................................................................... 45
Generating Static .................................................................................................... 45
Preventing Electrostatic Damage to Equipment ............................................................ 46
Personal Grounding Methods and Equipment ............................................................. 46
Grounding the Work Area ....................................................................................... 47
Recommended Materials and Equipment .................................................................... 47
Operating Guidelines ............................................................................................................. 48
Routine Care ......................................................................................................................... 48
General Cleaning Safety Precautions ......................................................................... 48
Cleaning the Computer Case .................................................................................... 49
Cleaning the Keyboard ............................................................................................ 49
Cleaning the Monitor ............................................................................................... 49
Cleaning the Mouse ................................................................................................ 50
Service Considerations ........................................................................................................... 50
Power Supply Fan ................................................................................................... 50
Tools and Software Requirements .............................................................................. 50
Screws ................................................................................................................... 50
Cables and Connectors ........................................................................................... 51
Hard Drives ............................................................................................................ 51
Lithium Coin Cell Battery .......................................................................................... 51
SATA Hard Drives .................................................................................................................. 52
SATA Hard Drive Cables ........................................................................................................ 52
SATA Data Cable ................................................................................................... 52
SMART ATA Drives ................................................................................................................ 52
Cable Management ............................................................................................................... 52
Hard Drive Capacities ............................................................................................................ 53
6 Removal and Replacement Procedures Microtower (MT) Chassis ..................................... 54
Preparation for Disassembly .................................................................................................... 54
Computer Access Panel .......................................................................................................... 55
Front Bezel ............................................................................................................................ 56
vi
Front Bezel Security ................................................................................................................ 57
Bezel Blanks .......................................................................................................................... 59
Memory ................................................................................................................................ 60
DIMMs .................................................................................................................. 60
DDR3-SDRAM DIMMs .............................................................................................. 60
Populating DIMM Sockets ........................................................................................ 61
Installing DIMMs ..................................................................................................... 62
Expansion Cards .................................................................................................................... 64
WLAN module ...................................................................................................................... 67
System Board Connections ...................................................................................................... 69
Drives ................................................................................................................................... 70
Drive Positions ........................................................................................................ 72
Removing a 5.25-inch or 3.5-inch Drive from a Drive Bay ............................................ 73
Installing a 5.25-inch or 3.5-inch Drive into a Drive Bay .............................................. 75
Removing a Hard Drive from a Drive Bay ................................................................... 77
Installing a Hard Drive into an Internal Drive Bay ........................................................ 78
Removing and Replacing a Removable 3.5-inch SATA Hard Drive ................................ 80
Front Fan Assembly ................................................................................................................ 85
Front I/O Assembly ................................................................................................................ 86
Power Switch/LED Assembly ................................................................................................... 87
Heat sink .............................................................................................................................. 89
Processor .............................................................................................................................. 90
Speaker ................................................................................................................................ 91
Rear Chassis Fan ................................................................................................................... 93
Power Supply ........................................................................................................................ 95
System Board ........................................................................................................................ 96
7 Removal and Replacement Procedures Small Form Factor (SFF) Chassis ........................... 99
Preparation for Disassembly .................................................................................................... 99
Access Panel ....................................................................................................................... 100
Front Bezel .......................................................................................................................... 101
Front Bezel Security .............................................................................................................. 102
Bezel Blanks ........................................................................................................................ 104
Memory .............................................................................................................................. 105
DIMMs ................................................................................................................ 105
DDR3-SDRAM DIMMs ............................................................................................ 105
Populating DIMM Sockets ...................................................................................... 106
Installing DIMMs ................................................................................................... 107
Expansion Card ................................................................................................................... 109
WLAN module .................................................................................................................... 113
System Board Connections .................................................................................................... 115
vii
Drives ................................................................................................................................. 116
Drive Positions ...................................................................................................... 117
Installing and Removing Drives ............................................................................... 117
Removing a 5.25-inch Drive from a Drive Bay ........................................... 119
Installing a 5.25-inch Drive into a Drive Bay .............................................. 119
Removing a 3.5-inch Drive from a Drive Bay ............................................. 121
Installing a 3.5-inch Drive into a Drive Bay ................................................ 123
Removing and Replacing the Primary 3.5-inch Internal Hard Drive ............... 125
Removing and Replacing a Removable 3.5-inch SATA Hard Drive ............... 127
Fan duct ............................................................................................................................. 132
Front Fan Assembly .............................................................................................................. 133
Hood Sensor ....................................................................................................................... 135
Front I/O, Power Switch Assembly ......................................................................................... 136
Speaker .............................................................................................................................. 138
Heat sink ............................................................................................................................ 139
Processor ............................................................................................................................ 141
Power Supply ...................................................................................................................... 142
System Board ...................................................................................................................... 143
Using the Small Form Factor Computer in a Tower Orientation .................................................. 145
8 Troubleshooting Without Diagnostics ............................................................................ 146
Safety and Comfort .............................................................................................................. 146
Before You Call for Technical Support .................................................................................... 146
Helpful Hints ........................................................................................................................ 147
Solving General Problems ..................................................................................................... 148
Solving Power Problems ........................................................................................................ 152
Solving Hard Drive Problems ................................................................................................. 154
Solving Media Card Reader Problems .................................................................................... 156
Solving Display Problems ...................................................................................................... 158
Solving Audio Problems ........................................................................................................ 163
Solving Printer Problems ........................................................................................................ 165
Solving Keyboard and Mouse Problems .................................................................................. 166
Solving Hardware Installation Problems .................................................................................. 169
Solving Network Problems .................................................................................................... 171
Solving Memory Problems ..................................................................................................... 175
Solving Processor Problems ................................................................................................... 176
Solving CD-ROM and DVD Problems ...................................................................................... 177
Solving USB Flash Drive Problems .......................................................................................... 179
Solving Front Panel Component Problems ................................................................................ 180
Solving Internet Access Problems ............................................................................................ 181
Solving Software Problems .................................................................................................... 182
viii
Contacting Customer Support ................................................................................................ 184
9 HP PC Hardware Diagnostics ........................................................................................ 185
Why run HP PC Hardware Diagnostics – UEFI ......................................................................... 185
How to access and run HP PC Hardware Diagnostics - UEFI ...................................................... 185
Downloading HP PC Hardware Diagnostics to a USB device ..................................................... 186
10 POST Error Messages .................................................................................................. 187
POST Numeric Codes and Text Messages ............................................................................... 187
Interpreting POST Diagnostic Front Panel LEDs and Audible Codes ............................................. 195
11 Password Security and Resetting CMOS ...................................................................... 199
Resetting the Password Jumper ............................................................................................... 199
Clearing and Resetting the CMOS ......................................................................................... 200
12 Backup and Recovery ................................................................................................. 203
Restoring and recovering in Windows 7 ................................................................................. 203
System Restore ...................................................................................................... 203
System Recovery ................................................................................................... 203
System Recovery when Windows is responding ......................................... 204
System Recovery when Windows is not responding .................................... 205
System recovery using recovery media ...................................................... 205
Creating recovery media .......................................................... 206
Using recovery media .............................................................. 207
Backup and recovery in Windows 8 ....................................................................................... 207
Backing up your information ................................................................................... 208
Performing a system recovery ................................................................................. 208
Using the Windows recovery tools ........................................................... 209
Using f11 recovery tools ......................................................................... 209
Using Windows 8 operating system media (purchased separately) ............... 210
Appendix A Battery Replacement .................................................................................... 211
Appendix B Power Cord Set Requirements ....................................................................... 214
General Requirements .......................................................................................................... 214
Japanese Power Cord Requirements ....................................................................................... 214
Country-Specific Requirements ............................................................................................... 215
Appendix C Specifications ................................................................................................ 216
MT Specifications ................................................................................................................. 216
ix
SFF Specifications ................................................................................................................ 217
Index ............................................................................................................................... 218
x
1 Product Features
Standard Configuration Features
Features may vary depending on the model. For a complete listing of the hardware and software
installed in the computer, run the diagnostic utility (included on some computer models only).
Figure 1-1 Microtower Configuration
Figure 1-2 Small Form Factor Configuration
NOTE: The Small Form Factor computer can also be used in a tower orientation. For more
information, see Using the Small Form Factor Computer in a Tower Orientation on page 145 in this
guide.
Standard Configuration Features 1
Microtower (MT) Front Panel Components
Drive configuration may vary by model. Some models have a bezel blank covering one or more drive
bays.
Table 1-1 Front Panel Components
1 5.25-inch Optical Drives 5 3.5-inch Media Card Reader (optional)
2 Hard Drive Activity Light 6 Dual-State Power Button
3 Microphone/Headphone Connector 7 Power On Light
4 USB (Universal Serial Bus) 2.0 Ports 8 Headphone Connector
NOTE: When a device is plugged into the Microphone/Headphone Connector, a dialog box will pop up asking if
you want to use the connector for a microphone Line-In device or a headphone. You can reconfigure the connector
at any time in the Realtek HD Audio Manager.
NOTE: The Power On Light is normally green when the power is on. If it is flashing red, there is a problem with the
computer and it is displaying a diagnostic code.
2 Chapter 1 Product Features
Small Form Factor (SFF) Front Panel Components
Drive configuration may vary by model. Some models have a bezel blank covering one or more drive
bays.
Figure 1-3 Front Panel Components
Table 1-2 Front Panel Components
1 5.25-inch Optical Drive 5 Microphone/Headphone Connector
2 Dual-State Power Button 6 3.5-inch Media Card Reader (optional)
3 Power On Light 7 Hard Drive Activity Light
4 USB (Universal Serial Bus) Ports 8 Headphone Connector
NOTE: When a device is plugged into the Microphone/Headphone Connector, a dialog box will pop up asking if
you want to use the connector for a microphone Line-In device or a headphone. You can reconfigure the connector
at any time in the Realtek HD Audio Manager.
NOTE: The Power On Light is normally green when the power is on. If it is flashing red, there is a problem with the
computer and it is displaying a diagnostic code.
Small Form Factor (SFF) Front Panel Components 3
Microtower (MT) Rear Panel Components
Figure 1-4 Rear Panel Components
Table 1-3 Rear Panel Components
1 Power Cord Connector 6 Line-Out Connector for powered audio
devices (green)
2Line-In Audio Connector (blue) 7 PS/2 Keyboard Connector (purple)
3PS/2 Mouse Connector (green) 8 VGA Monitor Connector
4Serial Connector 9 DisplayPort Monitor Connector
5RJ-45 Network Connector 10 USB 3.0 ports (blue)
11 USB 2.0 ports (black)
NOTE: An optional second serial port and an optional parallel port are available from HP.
When a device is plugged into the blue Line-In Audio Connector, a dialog box will pop up asking if you want to use
the connector for a line-in device or a microphone. You can reconfigure the connector at any time in the Realtek HD
Audio Manager.
For AMD/ATI graphic cards installed in one of the system board slots, the video connectors on the graphics card and
the integrated graphics on the system board may be used at the same time. However, for other non-AMD/ATI
graphics cards, the video connectors will only be functional on the graphics card.
If inserting a wireless receiver, use a USB 2.0 port that is separated from USB 3.0 devices.
4 Chapter 1 Product Features
Small Form Factor (SFF) Rear Panel Components
Figure 1-5 Rear Panel Components
Table 1-4 Rear Panel Components
1RJ-45 Network Connector 7 DisplayPort Monitor Connector
2Serial Connector 8 VGA Monitor Connector
3PS/2 Mouse Connector (green) 9 PS/2 Keyboard Connector (purple)
4 Power Cord Connector 10 Line-Out Connector for powered audio
devices (green)
5USB 2.0 ports (black) 11 Line-In Audio Connector (blue)
6USB 3.0 ports (blue)
NOTE: An optional second serial port and an optional parallel port are available from HP.
When a device is plugged into the blue Line-In Audio Connector, a dialog box will pop up asking if you want to use
the connector for a line-in device or a microphone. You can reconfigure the connector at any time in the Realtek HD
Audio Manager.
For AMD/ATI graphic cards installed in one of the system board slots, the video connectors on the graphics card and
the integrated graphics on the system board may be used at the same time. However, for other non-AMD/ATI
graphics cards, the video connectors will only be functional on the graphics card.
If inserting a wireless receiver, use a USB 2.0 port that is separated from USB 3.0 devices.
Small Form Factor (SFF) Rear Panel Components 5
Serial Number Location
Each computer has a unique serial number and a product ID number that are located on the top cover
of the computer. Keep these numbers available for use when contacting customer service for assistance.
Figure 1-6 Microtower Serial Number and Product ID Location
Figure 1-7 Small Form Factor Serial Number and Product ID Location
6 Chapter 1 Product Features
2 Activating and Customizing the
Software
NOTE: This chapter provides information for both Windows 7 and Windows 8.
Activating and customizing the software in
Windows 7
If your computer was not shipped with a Windows® operating system, some portions of this
documentation do not apply. Additional information is available in online help after you activate the
operating system.
CAUTION: Do not add optional hardware or third-party devices to the computer until the operating
system is successfully activated. Doing so may cause errors and prevent the operating system from
installing properly.
NOTE: Be sure there is a 10.2 cm (4 inch) clearance at the back of the unit and above the monitor to
permit the required airflow.
Activating the Windows operating system
The first time you turn on the computer, the operating system is set up and activated automatically. This
process takes about 5 to 10 minutes. Carefully read and follow the instructions on the screen to
complete the activation.
We recommend that you register your computer with HP during operating system setup so you can
receive important software updates, facilitate support questions, and sign up for special offers.
CAUTION: After the activation process has begun, DO NOT TURN OFF THE COMPUTER UNTIL THE
PROCESS IS COMPLETE. Turning off the computer during the activation process may damage the
software that runs the computer or prevent its proper installation.
NOTE: If the computer shipped with more than one operating system language on the hard drive, the
activation process could take up to 60 minutes.
Activating and customizing the software in Windows 7 7
Downloading Windows 7 updates
Microsoft may release updates to the operating system. To help keep the computer running optimally,
HP recommends checking for the latest updates during the initial installation and periodically
throughout the life of the computer.
1. To set up your Internet connection, click Start > Internet Explorer and follow the instructions
on the screen.
2. After an Internet connection has been established, click the Start > All Programs > Windows
Update.
3. Run Windows Update monthly thereafter.
Installing or upgrading device drivers
When installing optional hardware devices after the operating system installation is complete, you must
also install the drivers for each of the devices.
In Windows 7, if prompted for the i386 directory, replace the path specification with C:\i386, or use
the Browse button in the dialog box to locate the i386 folder. This action points the operating system
to the appropriate drivers.
Obtain the latest support software, including support software for the operating system, from
http://www.hp.com/support. Select your country and language, select Download drivers and
software (and firmware), enter the model number of the computer, and press Enter.
Customizing the monitor display
If you wish, you can select or change the monitor refresh rates, screen resolution, color settings, font
sizes, and power management settings.
For more information, refer to the online documentation provided with the graphics controller utility or
the documentation that came with your monitor.
Right-click on the Windows desktop, then click Personalize to change display settings.
Activating and customizing the software in
Windows 8
Additional information is available in online help after you activate the operating system.
NOTE: Be sure there is a 10.2 cm (4 inch) clearance at the back of the unit and above the monitor to
permit the required airflow.
Activating the Windows Operating System
The first time you turn on the computer, the operating system is set up and activated automatically. This
process takes about 5 to 10 minutes. Carefully read and follow the instructions on the screen to
complete the activation.
8 Chapter 2 Activating and Customizing the Software
We recommend that you register your computer with HP during operating system set up so you can
receive important software updates, facilitate support questions, and sign up for special offers. You can
also register your computer with HP using the Register with HP app on the Start screen.
CAUTION: After the activation process has begun, DO NOT TURN OFF THE COMPUTER UNTIL THE
PROCESS IS COMPLETE. Turning off the computer during the activation process may damage the
software that runs the computer or prevent its proper installation.
Downloading Windows 8 updates
Microsoft may release updates to the operating system. To help keep the computer running optimally,
HP recommends checking for the latest updates during the initial installation and periodically
throughout the life of the computer.
Run Windows Update as soon as possible after you set up your computer.
1. Point to the upper-right or lower-right corner of the Start screen to display the charms.
2. Click Settings > Change PC Settings > Windows Update.
3. Run Windows Update monthly thereafter.
Customizing the monitor display
You can customize display settings for Windows 8 separately for the Start screen and the Desktop.
To customize the Start screen:
1. Point to the upper-right or lower-right corner of the Start screen to display the charms.
2. Click Settings > Change PC Settings.
3. Click Personalize to change the display settings.
To customize the Desktop:
1. Click the Desktop app on the Start screen.
2. Right-click on the desktop, and then click Personalize to change display settings.
Activating and customizing the software in Windows 8 9
3 Computer Setup (F10) Utility
Computer Setup (F10) Utilities
Use Computer Setup (F10) Utility to do the following:
●Change factory default settings.
●Set the system date and time.
●Set, view, change, or verify the system configuration, including settings for processor, graphics,
memory, audio, storage, communications, and input devices.
●Modify the boot order of bootable devices such as hard drives, optical drives, or USB flash media
devices.
●Enable Quick Boot, which is faster than Full Boot but does not run all of the diagnostic tests run
during a Full Boot. You can set the system to:
❑always Quick Boot (default);
❑periodically Full Boot (from every 1 to 30 days); or
❑always Full Boot.
●Select Post Messages Enabled or Disabled to change the display status of Power-On Self-Test
(POST) messages. Post Messages Disabled suppresses most POST messages, such as memory
count, product name, and other non-error text messages. If a POST error occurs, the error is
displayed regardless of the mode selected. To manually switch to Post Messages Enabled during
POST, press any key (except F1 through F12).
●Establish an Ownership Tag, the text of which is displayed each time the system is turned on or
restarted.
●Enter the Asset Tag or property identification number assigned by the company to this computer.
●Enable the power-on password prompt during system restarts (warm boots) as well as during
power-on.
●Establish a setup password that controls access to the Computer Setup (F10) Utility and the settings
described in this section.
●Secure integrated I/O functionality, including the serial, USB, or parallel ports, audio, or
embedded NIC, so that they cannot be used until they are unsecured.
●Enable or disable removable media boot ability.
●Solve system configuration errors detected but not automatically fixed during the Power-On Self-
Test (POST).
●Replicate the system setup by saving system configuration information on a USB device and
restoring it on one or more computers.
10 Chapter 3 Computer Setup (F10) Utility
●Execute self-tests on a specified ATA hard drive (when supported by drive).
●Enable or disable DriveLock security (when supported by drive).
Using Computer Setup (F10) Utilities
Computer Setup can be accessed only by turning the computer on or restarting the system. To access
the Computer Setup Utilities menu, complete the following steps:
1. Turn on or restart the computer.
2. Repeatedly press F10 when the monitor light turns green to access the utility.
You can also press Esc to a menu that allows you to access different options available at startup,
including the Computer Setup utility.
NOTE: If you do not press F10 at the appropriate time, you must restart the computer and again
repeatedly press F10 when the monitor light turns green to access the utility.
3. A choice of five headings appears in the Computer Setup Utilities menu: File, Storage, Security,
Power, and Advanced.
4. Use the arrow (left and right) keys to select the appropriate heading. Use the arrow (up and down)
keys to select the option you want, then press Enter. To return to the Computer Setup Utilities
menu, press Esc.
5. To apply and save changes, select File > Save Changes and Exit.
●If you have made changes that you do not want applied, select Ignore Changes and
Exit.
●To reset to factory settings or previously saved default settings (some models), select Apply
Defaults and Exit. This option will restore the original factory system defaults.
NOTE: Not all settings shown in the following sections are available for all models
CAUTION: Do NOT turn the computer power OFF while the BIOS is saving the Computer Setup
(F10) changes because the CMOS could become corrupted. It is safe to turn off the computer only after
exiting the F10 Setup screen.
Table 3-1 Computer Setup (F10) Utility
Heading Table
File Computer Setup—File on page 12
Storage Computer Setup—Storage on page 13
Security Computer Setup—Security on page 16
Power Computer Setup—Power on page 21
Advanced Computer Setup—Advanced on page 22
Computer Setup (F10) Utilities 11
Computer Setup—File
NOTE: Support for specific Computer Setup options may vary depending on the hardware
configuration.
Table 3-2 Computer Setup—File
Option Description
System Information Lists:
●Product name
●SKU number
●Processor type/speed/stepping
●Cache size (L1/L2/L3) (dual core processors have this listed twice)
●Installed memory size/speed, number of channels (single or dual) (if applicable)
●Integrated MAC address for embedded, enabled NIC (if applicable)
●System BIOS (includes family name and version)
●Chassis serial number
●Asset tracking number
●ME firmware version
●ME Management mode
About Displays copyright notice.
Set Time and Date Allows you to set system time and date.
Flash System ROM Allows you to update the system ROM with a BIOS image file located on removable media.
Replicated Setup Save to Removable Media
Saves system configuration to a formatted USB flash media device.
Restore from Removable Media
Restores system configuration from a USB flash media device.
Default Setup Save Current Settings as Default
Saves the current system configuration settings as the default.
Restore Factory Settings as Default
Restores the factory system configuration settings as the default.
Apply Defaults and
Exit
Applies the currently selected default settings and clears any established passwords.
Ignore Changes
and Exit
Exits Computer Setup without applying or saving any changes.
Save Changes and
Exit
Saves changes to system configuration or default settings and exits Computer Setup.
12 Chapter 3 Computer Setup (F10) Utility
Computer Setup—Storage
NOTE: Support for specific Computer Setup options may vary depending on the hardware
configuration.
Table 3-3 Computer Setup—Storage
Option Description
Device
Configuration
Lists all installed BIOS-controlled storage devices.
When a device is selected, detailed information and options are displayed. The following options
may be presented:
●Hard Disk: Size, model, firmware version, serial number, connector color.
Translation mode (ATA disks only)
Lets you select the translation mode to be used for the device. This enables the BIOS to access
disks partitioned and formatted on other systems and may be necessary for users of older
versions of UNIX (e.g., SCO UNIX version 3.2). Options are Automatic, Bit-Shift, LBA Assisted,
User, and Off.
Available only when the drive translation mode is set to User, allows you to specify the
parameters (logical cylinders, heads, and sectors per track) used by the BIOS to translate disk
I/O requests (from the operating system or an application) into terms the hard drive can
accept. Logical cylinders may not exceed 1024. The number of heads may not exceed 256.
The number of sectors per track may not exceed 63.
CAUTION: Ordinarily, the translation mode selected automatically by the BIOS should not
be changed. If the selected translation mode is not compatible with the translation mode that
was active when the disk was partitioned and formatted, the data on the disk will be
inaccessible.
●CD-ROM: Model, firmware version, serial number, connector color (not included for USB CD-
ROM).
●SSD Life Used
NOTE: Displays for solid-state drives.
●SMART (ATA disks only)
●Diskette: Model and firmware version.
NOTE: Displays for USB diskette drives.
●Default Values (ATA disks only)
See Translation Mode above for details.
SATA Defaults
Computer Setup (F10) Utilities 13
Table 3-3 Computer Setup—Storage (continued)
Storage Options eSATA Port
Allows you to set a SATA port as an eSATA port for use with an external drive. Default is enabled.
This setting affects only the port with the black connector, labeled as eSATA on the system board.
This port should have the eSATA back panel connector attached to use eSATA drives. For more
information, see the eSATA white paper at www.hp.com.
SATA Emulation
Allows you to choose how the SATA controller and devices are accessed by the operating system.
There are three supported options: IDE, RAID, and AHCI (default).
CAUTION: SATA emulation changes may prevent access to existing hard drive data and
degrade or corrupt established volumes.
IDE - This is the most backwards-compatible setting of the three options. Operating systems usually
do not require additional driver support in IDE mode.
RAID - Allows DOS and boot access to RAID volumes. Use this mode with the RAID device driver
loaded in the operating system to take advantage of RAID features.
AHCI (default option) - Allows operating systems with AHCI device drivers loaded to take
advantage of more advanced features of the SATA controller.
NOTE: The RAID/AHCI device driver must be installed prior to attempting to boot from a RAID/
AHCI volume. If you attempt to boot from a RAID/AHCI volume without the required device driver
installed, the system will crash (blue screen). RAID volumes may become corrupted if they are
booted to after disabling RAID.
Removable Media Boot
Enables/disables ability to boot the system from removable media. Default is enabled.
Max eSATA Speed
Allows you to choose 1.5 Gbps or 3.0 Gpbs as the maximum eSATA speed. By default, the speed
is limited to 1.5 Gbps for maximum reliability.
CAUTION: Consult your eSATA drive and cable manufacturer before enabling 3.0 Gpbs speed.
Some drive and cable combinations may not run reliably at 3.0 Gpbs.
14 Chapter 3 Computer Setup (F10) Utility
Table 3-3 Computer Setup—Storage (continued)
DPS Self-Test Allows you to execute self-tests on ATA hard drives capable of performing the Drive Protection
System (DPS) self-tests.
NOTE: This selection will only appear when at least one drive capable of performing the DPS self-
tests is attached to the system.
Boot Order Allows you to:
●EFI Boot Sources: Specify the order in which EFI boot sources (such as a internal hard drive,
USB hard drive, USB optical drive, or internal optical drive) are checked for a bootable
operating system image. Each device on the list may be individually excluded from or included
for consideration as a bootable operating system source.
EFI boot sources always have precedence over legacy boot sources.
●Legacy Boot Sources: Specify the order in which legacy boot sources (such as a network
interface card, internal hard drive, USB optical drive, or internal optical drive) are checked for
a bootable operating system image. Each device on the list may be individually excluded from
or included for consideration as a bootable operating system source.
Specify the order of attached hard drives. The first hard drive in the order will have priority in
the boot sequence and will be recognized as drive C (if any devices are attached).
NOTE: To drag a device to a preferred place, press Enter. To remove the device from
consideration as a bootable device, press F5.
You can use F5 to disable individual boot items, as well as disable EFI boot and/or legacy boot.
NOTE: MS-DOS drive lettering assignments may not apply after a non-MS-DOS operating system
has started.
Shortcut to Temporarily Override Boot Order
To boot one time from a device other than the default device specified in Boot Order, restart the
computer and press Esc (to access the boot menu) and then F9 (Boot Order), or only F9 (skipping
the boot menu) when the monitor light turns green. After POST is completed, a list of bootable
devices is displayed. Use the arrow keys to select the preferred bootable device and press Enter.
The computer then boots from the selected non-default device for this one time.
Computer Setup (F10) Utilities 15
Computer Setup—Security
NOTE: Support for specific Computer Setup options may vary depending on the hardware
configuration.
Table 3-4 Computer Setup—Security
Option Description
Setup Password Allows you to set and enable a setup (administrator) password.
NOTE: If the setup password is set, it is required to change Computer Setup options, flash the
ROM, and make changes to certain plug and play settings under Windows.
Power-On
Password
Allows you to set and enable a power-on password. The power-on password prompt appears after
a power cycle or reboot. If the user does not enter the correct power-on password, the unit will not
boot.
Password Options
(This selection appears
only if a power-on
password or setup
password is set.)
Allows you to enable/disable:
●Lock Legacy Resources (determines whether or not Windows Device Manager is allowed to
change resource settings for serial and parallel ports).
●Stringent security (enabling the stringent password disables the ability to reset the password by
moving the jumper on the system board). Default is disabled.
CAUTION: If you enable the stringent security feature and you forget the setup password or
the power-on password, the computer is inaccessible and can no longer be used.
If you lose or forget the password, the system board must be replaced. This scenario is not
covered under warranty.
To prevent the computer from becoming permanently unusable, record your configured setup
password or power-on password in a safe place away from your computer. Without these
passwords, the computer cannot be unlocked.
●Setup Browse Mode (appears if a setup password is set) (allows viewing, but not changing,
the F10 Setup Options without entering setup password). Default is enabled.
●Password prompt on F9 & F12 (requires setup password to use these boot functions). Default is
enabled.
●Network Server Mode. Default is disabled.
Smart Cover Allows you to:
●Lock/unlock the Cover Lock.
●Set the Cover Removal Sensor to Disable/Notify User/Setup Password.
NOTE: Notify User alerts the user that the sensor has detected that the cover has been removed.
Setup Password requires that the setup password be entered to boot the computer if the sensor
detects that the cover has been removed.
16 Chapter 3 Computer Setup (F10) Utility
Table 3-4 Computer Setup—Security (continued)
Device Security Allows you to set Device Available/Device Hidden (default is Device Available) for:
●Embedded security device
●System audio
●USB controller (varies by model)
●Network controller
NOTE: You must disable AMT before trying to hide the network controller.
●Serial port
●Parallel port
●SATA ports (varies by model)
USB Security Allows you to set Enabled/Disabled (default is Enabled) for:
●Front USB Ports
●Rear USB Ports
●Accessory USB Ports
Slot Security Allows you to disable any PCI or PCI Express slot. Default is enabled.
Network Boot Enables/disables the computer’s ability to boot from an operating system installed on a network
server. (Feature available on NIC models only; the network controller must be either a PCI
expansion card or embedded on the system board.) Default is enabled.
System IDs Allows you to set:
●Asset tag (18-byte identifier), a property identification number assigned by the company to the
computer.
●Ownership tag (80-byte identifier) displayed during POST.
●Universal Unique Identifier (UUID) number. The UUID can only be updated if the current
chassis serial number is invalid. (These ID numbers are normally set in the factory and are used
to uniquely identify the system.)
●Keyboard locale setting for System ID entry.
Computer Setup (F10) Utilities 17
Table 3-4 Computer Setup—Security (continued)
Master Boot Record
Security
Enables/disables Master Boot Record (MBR) security.
The MBR contains information needed to successfully boot from a disk and to access the data stored
on the disk. Master Boot Record Security may prevent unintentional or malicious changes to the
MBR, such as those caused by some viruses or by the incorrect use of certain disk utilities. It also
allows you to recover the "last known good" MBR, should changes to the MBR be detected when
the system is restarted.
When MBR Security is enabled, the BIOS prevents any changes being made to the MBR of the
current bootable disk while in MS-DOS or Windows Safe Mode.
NOTE: Most operating systems control access to the MBR of the current bootable disk; the BIOS
cannot prevent changes that may occur while the operating system is running.
Restores the backup Master Boot Record to the current bootable disk. Default is disabled.
Only appears if all of the following conditions are true:
●MBR security is enabled
●A backup copy of the MBR has been previously saved
●The current bootable disk is the same disk from which the backup copy was saved
CAUTION: Restoring a previously saved MBR after a disk utility or operating system has modified
the MBR, may cause the data on the disk to become inaccessible. Only restore a previously saved
MBR if you are confident that the current bootable disk's MBR has been corrupted or infected with a
virus.
18 Chapter 3 Computer Setup (F10) Utility
Table 3-4 Computer Setup—Security (continued)
System Security
(these options are
hardware dependent)
Data Execution Prevention (enable/disable) - Helps prevent operating system security breaches.
Default is enabled.
SVM CPU Virtualization (enable/disable). Controls the virtualization features of the processor.
Changing this setting requires turning the computer off and then back on. Default is disabled.
Virtualization Technology (VTx) (enable/disable) - Controls the virtualization features of the
processor. Changing this setting requires turning the computer off and then back on. Default is
disabled.
Virtualization Technology Directed I/O (VTd) (enable/disable) - Controls virtualization DMA
remapping features of the chipset. Changing this setting requires turning the computer off and then
back on. Default is disabled.
Trusted Execution Technology (enable/disable) - Controls the underlying processor and chipset
features needed to support a virtual appliance. Changing this setting requires turning the computer
off and then back on. Default is disabled. To enable this feature you must enable the following
features:
●Embedded Security Device Support
●Virtualization Technology
●Virtualization Technology Directed I/O
Embedded Security Device (enable/disable) - Permits activation and deactivation of the Embedded
Security Device.
NOTE: To configure the Embedded Security Device, a Setup password must be set.
●Reset to Factory Settings (Do not reset/Reset) - Resetting to factory defaults will erase all
security keys and leave the device in a disabled state. Changing this setting requires that you
restart the computer. Default is Do not reset.
CAUTION: The embedded security device is a critical component of many security schemes.
Erasing the security keys will prevent access to data protected by the Embedded Security
Device. Choosing Reset to Factory Settings may result in significant data loss.
●Measure boot variables/devices to PCR1 - Typically, the computer measures the boot path and
saves collected metrics to PCR5 (a register in the Embedded Security Device). Bitlocker tracks
changes to any of these metrics, and forces the user to re-authenticate if it detects any
changes. Enabling this feature lets you set Bitlocker to ignore detected changes to boot path
metrics, thereby avoiding re-authentication issues associated with USB keys inserted in a port.
Default is enabled.
System Security
(continued)
OS management of Embedded Security Device (enable/disable) - This option allows the user to limit
OS control of the Embedded Security Device. Default is enabled. This option is automatically
disabled if Trusted Execution Technology is enabled.
●Reset of Embedded Security Device through OS (enable/disable) - This option allows the user
to limit the operating system ability to request a Reset to Factory Settings of the Embedded
Security Device. Default is disabled.
NOTE: To enable this option, a Setup password must be set.
●No PPI provisioning (Windows 8 only) - This option lets you set Windows 8 to bypass the PPI
(Physical Presence Interface) requirement and directly enable and take ownership of the TPM
on first boot. You cannot change this setting after TPM is owned/initialized, unless the TPM is
reset. Default is disabled for non-Windows 8 systems, and enabled for Windows 8.
●Allow PPI policy to be changed by OS. Enabling this option allows the operating system to
execute TPM operations without Physical Presence Interface. Default is disabled.
NOTE: To enable this option, a Setup password must be set.
Computer Setup (F10) Utilities 19
Table 3-4 Computer Setup—Security (continued)
DriveLock Security Allows you to assign or modify a master or user password for hard drives. When this feature is
enabled, the user is prompted to provide one of the DriveLock passwords during POST. If neither is
successfully entered, the hard drive will remain inaccessible until one of the passwords is
successfully provided during a subsequent cold-boot sequence.
NOTE: This selection will only appear when at least one drive that supports the DriveLock feature
is attached to the system.
Secure Boot
Configuration
This is a feature of Windows 8.
●Legacy Support—Enable/Disable. Allows you to turn off all legacy support on the computer,
including booting to DOS, running legacy graphics cards, booting to legacy devices, and so
on. If set to disable, legacy boot options in Storage > Boot Order are not displayed.
Default is enabled.
●Secure Boot—Enable/Disable. Allows you to make sure an operating system is legitimate
before booting to it, making Windows resistant to malicious modification from preboot to full
OS booting, preventing firmware attacks. UEFI and Windows Secure Boot only allow code
signed by pre-approved digital certificates to run during the firmware and OS boot process.
Default is disabled, except for Windows 8 systems which have this setting enabled. Secure
Boot enabled also sets Legacy Support to disabled.
●Key Management—This option lets you manage the custom key settings.
◦Clear Secure Boot Keys—Don't Clear/Clear. Allows you to delete any previously loaded
custom boot keys. Default is Don't Clear.
◦Key Ownership—HP Keys/Custom Keys. Selecting Custom Mode allows you to modify
the contents of the secure boot signature databases and the platform key (PK) that verifies
kernels during system start up, allowing you to use alternative operating systems.
Selecting HP Keys causes the computer boot using the preloaded HP-specific boot keys.
Default is HP Keys.
●Fast Boot—Enable/Disable. Fast boot disables the ability to interrupt boot, such as pressing f
keys to access items before the operating system loads. Default is disabled.
NOTE: If Windows 8 detects a serious error, it will interrupt the boot process automatically
and display advanced boot options.
From Windows 8, you can press Shift and select Restart to access the screen that lets you
boot to a device or troubleshoot your computer.
20 Chapter 3 Computer Setup (F10) Utility
Computer Setup—Power
NOTE: Support for specific Computer Setup options may vary depending on the hardware
configuration.
Table 3-5 Computer Setup—Power
Option Description
OS Power
Management
●Idle Power Savings—Extended/Normal. Allows certain operating systems to decrease the
processors power consumption when the processor is idle. Default is extended.
●Runtime Power Management— Enable/Disable. Allows certain operating systems to reduce
processor voltage and frequency when the current software load does not require the full
capabilities of the processor. Default is enabled.
●Unique Sleep State Blink Rates—Enable/Disable. This feature is designed to provide a visual
indication of what sleep state the system is in. Each sleep state has a unique blink pattern.
Default is disabled.
NOTE: For Windows 8 systems with Fast Boot support, a normal shutdown goes to the S4
state, not the S5 state.
◦S0 (On) = Solid green LED.
◦S3 (Stand By)= 3 blinks at 1Hz (50% duty cycle) followed by a pause of 2 seconds
(green LED) — repeated cycles of 3 blinks and a pause.
◦S4 (Hibernation)= 4 blinks at 1Hz (50% duty cycle) followed by a pause of 2 seconds
(green LED) — repeated cycles of 4 blinks and a pause.
◦S5 (Soft Off) = LED is off.
Hardware Power
Management
SATA Power Management – Enables or disables SATA bus and/or device power management.
Default is enabled.
S5 Maximum Power Savings – Turns off power to all nonessential hardware when system is off to
meet EUP Lot 6 requirement of less than 0.5 Watt power usage. Default is disabled.
PCI Express x16 Slot 1 – Sets Active State Power Management (ASPM) of the bus. ASPM lets you
set lower power modes that activate when the bus is not being used. Options are Disabled, LOs,
L1, LOs and L1. Default is ASPM Disabled.
PCI Express x1 Slot 1 – Sets Active State Power Management (ASPM) of the bus. ASPM lets you set
lower power modes that activate when the bus is not being used. Options are Disabled, LOs, L1,
LOs and L1. Default is ASPM Disabled.
Network Controller – Sets ASPM of the bus. ASPM lets you set lower power modes that activate
when the bus is not being used. Options are Disabled, LOs, L1, LOs and L1. Default is ASPM
Disabled.
USB 3.0 Controller – Sets ASPM of the bus. ASPM lets you set lower power modes that activate
when the bus is not being used. Options are Disabled, LOs, L1, LOs and L1. Default is ASPM
Disabled.
Thermal Fan idle mode—This bar graph controls the minimum permitted fan speed.
NOTE: This setting only changes the minimum fan speed. The fans are still automatically
controlled.
Computer Setup (F10) Utilities 21
Computer Setup—Advanced
NOTE: Support for specific Computer Setup options may vary depending on the hardware
configuration.
Table 3-6 Computer Setup—Advanced (for advanced users)
Option Heading
Power-On Options Allows you to set:
●POST mode (QuickBoot, Clear Memory, FullBoot, or FullBoot Every x Days).
◦QuickBoot (default) = Do not clear memory or perform a memory test.
◦FullBoot = Memory test (count) on cold boot. Clears memory on all boots.
◦Clear Memory = No memory count on cold boot. Clears memory on all boots.
◦FullBoot Every x Days = Memory count on 1st cold boot on or after the xth day. No more
memory counts until 1st cold boot on or after x days. Clears memory on all boots.
●POST messages (enable/disable). Enabling this feature will cause the system to display POST
error messages, which are error messages displayed on the monitor during the Power On Self
Test if the BIOS encounters some kind of problem while starting the PC. A POST error message
will only display on screen if the computer is capable of booting this far. If the POST detects
an error before this point, a beep code is generated instead. Default is disabled.
●Press the ESC key for Startup Menu (Enable/Disable). This feature controls the display of the
text “Press the ESC key for Startup Menu” during POST. This text does not display on
Windows 8 systems with Fast Boot support. Other text also will not display (for example,
Ownership Tag). Default is enabled.
●Option ROM Prompt (enable/disable). Enabling this feature will cause the system to display a
message before loading option ROMs. Default is enabled.
●After Power Loss (off/on/previous state). Default is Power off. Setting this option to:
◦Power off—causes the computer to remain powered off when power is restored.
◦Power on—causes the computer to power on automatically as soon as power is restored.
◦Previous state—causes the computer to power on automatically as soon as power is
restored, if it was on when power was lost.
NOTE: If you turn off power to the computer using the switch on a power strip, you will not be
able to use the suspend/sleep feature or the Remote Management features.
●POST Delay (in seconds). Enabling this feature will add a user-specified delay to the POST
process. This delay is sometimes needed for hard disks on some PCI cards that spin up very
slowly, so slowly that they are not ready to boot by the time POST is finished. The POST delay
also gives you more time to select F10 to enter Computer (F10) Setup. Default is None.
●Remote Wakeup Boot Source (remote server/local hard drive). Default is Local hard drive.
●Factory Recovery Boot Support (Enable/Disable). Provides the ability for the BIOS to redirect
the boot to the recovery partition on the user hard drive, if present. Some versions of the
recovery software honor the F11 key press even when this feature is disabled by the BIOS.
Default is disabled.
●Bypass F1 Prompt on Configuration Changes (Enable/Disable). Allows you to set the computer
not to confirm when changes were made. Default is disabled.
BIOS Power-On Allows you to set the computer to turn on automatically at a time you specify.
22 Chapter 3 Computer Setup (F10) Utility
Table 3-6 Computer Setup—Advanced (for advanced users) (continued)
Onboard Devices Allows you to set resources for or disable Legacy devices.
Select the Legacy device's IRQ, DMA, and I/O Range. The settings may not take effect for all
operating systems. To hide a device from the operating system, see Security > Device Security.
Bus Options Allows you to enable or disable:
●PCI SERR# Generation. Default is enabled.
●PCI VGA Palette Snooping, which sets the VGA palette snooping bit in PCI configuration
space; only needed when more than one graphics controller is installed. Default is disabled.
Device Options Allows you to set:
●Printer mode (Bi-Directional, EPP + ECP, Output Only). ECP = Enhanced Capabilities Port, EPP
= Enhanced Parallel Port. Default is EPP+ECP.
●Num Lock State at Power-On (off/on). Default is off.
●Integrated Video (enable/disable). Use this option to disable the integrated video controller
when another video controller is present in the system. Default is enabled.
●Integrated Graphics (Auto/Disable/Force) Use this option to manage integrated (UMA)
graphics memory allocation. The value you choose is allocated permanently to graphics and is
unavailable to the operating system. For example, if you set this value to 512M on a system
with 2 GB of RAM, the system always allocates 512 MB for graphics and the other 1.5 GB for
use by the BIOS and operating system. Default is Auto which sets memory allocation to 512
MB.
If you select Force, the UMA Frame Buffer Size option displays, which lets you set the UMA
memory size allocation between 32 MB and 1 GB.
●Internal Speaker (does not affect external speakers). Default is enabled.
●NIC PXE Option ROM Download (PXE, iSCSI, disabled). The BIOS contains an embedded
NIC option ROM to allow the unit to boot through the network to a PXE server. This is typically
used to download a corporate image to a hard drive. The NIC option ROM takes up memory
space below 1MB commonly referred to as DOS Compatibility Hole (DCH) space. This space
is limited. This F10 option will allow users to disable the downloading of this embedded NIC
option ROM thus giving more DCH space for additional PCI cards which may need option
ROM space. The default will be to have the NIC option-ROM-enabled. Default is PXE.
●SATA RAID Option ROM Download (enable/disable). The BIOS contains an embedded SATA
RAID option ROM for RAID support. This can be temporarily disabled to save DCH space.
Note that with the option ROM disabled, users will be unable to boot to hard drives in the
system while running in RAID mode. Default is disabled.
●Multi-Processor (enable/disable). Use this option to disable multi-processor support under the
OS. Default is enabled.
●Hyper threading (enable/disable). Use this option to disable processor hyper-threading.
●Turbo Mode (enable/disable). Allows you to enable and disable the Intel Turbo Mode feature,
which allows one core of the system to run at a higher than standard frequency and power if
other cores are idle. Default is enabled.
Computer Setup (F10) Utilities 23
Table 3-6 Computer Setup—Advanced (for advanced users) (continued)
VGA Configuration Displayed only if there is an add-in video card in the system. Allows you to specify which VGA
controller will be the “boot” or primary VGA controller.
AMT Configuration Allows you to set:
●AMT (enable/disable). Allows you to enable or disable functions of the embedded
Management Engine (ME) such as Active Management Technology (AMT). If set to disable, the
Management Engine is set to a temporarily disabled state and will not provide functions
beyond necessary system configuration. Default is enabled.
●Unconfigure AMT/ME (enable/disable). Allows you to unconfigure any provisioned
management settings for AMT. The AMT settings are restored to factory defaults. This feature
should be used with caution as AMT will not be able to provide any set AMT management
functions once unconfigured. Default is disabled.
●Hide Unconfigure ME Confirmation Prompt (enable/disable). Allows you to set the system to
not display the confirmation to unconfigure ME.
●Watchdog Timer (enable/disable). Allows you to set amount of time for a operating system
and BIOS watchdog alert to be sent if the timers are not deactivated. BIOS watchdog is
deactivated by BIOS and would indicate that a halt occurred during execution if the alert is
sent to the management console. An operating system alert is deactivated by the operating
system image and would indicate that a hang occurred during its initialization. Default is
enabled.
Recovering the Configuration Settings
This method of recovery requires that you first perform the Save to Removable Media command
with the Computer Setup (F10) Utility before Restore is needed. (See Computer Setup—File
on page 12 in the Computer Setup—File table.)
NOTE: It is recommended that you save any modified computer configuration settings to a USB flash
media device and save the device for possible future use.
To restore the configuration, insert the USB flash media device with the saved configuration and
perform the Restore from Removable Media command with the Computer Setup (F10) Utility.
(See Computer Setup—File on page 12 in the Computer Setup—File table.)
24 Chapter 3 Computer Setup (F10) Utility
4 Illustrated parts catalog
Microtower (MT) chassis spare parts
Computer major components
Item Description Spare part number
(1) Front bezel
For use in all countries and regions except China 689377-001
5.25-inch bezel blank (optical drive; not illustrated) 570838-001
Microtower (MT) chassis spare parts 25
Item Description Spare part number
3.5-inch bezel blank (not illustrated) 583653-001
(2) Access panel 646825-001
(3) Power supply
320W, 90% efficient 613764-001
320W, standard 613765-001
(4) System board (includes replacement thermal material)
For use in Windows 7 models 703596-001
For use in Windows 8 Standard models 703596-501
For use in Windows 8 Professional models 703596-601
*Memory modules (PC3-12800, 1600-MHz)
8-GB 689375-001
4-GB 671613-001
2-GB 671612-001
*Processors (include replacement thermal material)
AMD A10-5800B, 3.8 GHz, 4-MB L2 cache (100-W), HD 7660D 703598-001
AMD A8-5500B, 3.2 GHz, 4-MB L2 cache (65-W), HD 7560D 703601-001
AMD A6-5400B, 3.6 GHz, 4-MB L2 cache (65-W), HD 7540D 703600-001
AMD A4-5300B, 3.4 GHz, 4-MB L2 cache (65-W), HD 7480D 703599-001
* not illustrated
26 Chapter 4 Illustrated parts catalog
Cables
Item Description Spare part number
(1) Front I/O assembly 646827-001
(2) SATA optical drive power cable 646834-001
(3) SATA hard drive power cable 646833-001
(4) Power switch/LED assembly 646828-001
(5) HP USB 3.0 Front Port Adapter 716391-001
SATA cable, 18 inch, 1 straight end, 1 angled end (labeled; not illustrated) 646830-001
SATA cable, 17.7 inch, 2 straight ends 639959-001
*DMS-59 to dual VGA cable 463023-001
*Adapter, DisplayPort to VGA 603250-001
Microtower (MT) chassis spare parts 27
Item Description Spare part number
*Adapter, DisplayPort to DVI 662723-001
*Adapter, DVI-I to VGA 202997-001
*Adapter, DVI-D to VGA 657401-001
* Adapter, USB 3.0 to USB 2.0 736835-001
*DMS-59 to dual DVI cable 463024-001
*Adapter, DisplayPort to HDMI 617450-001
*DisplayPort cable 487562-001
* not illustrated
Misc parts
Item Description Spare part number
(1) Heat sink (includes replacement thermal material) 645326-001
(2) Fan with guard 585884-001
28 Chapter 4 Illustrated parts catalog
Item Description Spare part number
(3) Hood sensor 638816-001
(4) Speaker 645330-001
(5) Solenoid lock 641498-001
(6) Printer port, PCI card 638817-001
(7) Clamp lock, includes universal cable (plate not included) 508987-001
*Rear chassis fan 643908-001
*Fan duct assembly 646824-001
*Serial port, PCI card 638815-001
*2.5-in drive adapter 586721-001
*Hard drive conversion bracket 397117-001
*Grommet, hard drive isolation, blue 450712-001
*Card reader, 22-in-1 636166-001
698877-001
*Card reader, 14-in-1, USB 2.0/3.0, 3.5-inch 716390-001
*USB powered speakers 636917-001
*Mouse
PS2, optical, jack black (non-ECO) 609250-001
USB, optical, jack black 537749-001
Washable 619580-001
Wireless 674317-001
Wireless (not for use in APJ region) 608150-001
USB, laser (non-ECO) 570580-001
*eSATA port assembly, PCI card 645558-001
*Antenna for use with WLAN card 583345-001
*HP Business Digital Headset 642738-001
*External USB Webcam 609252-001
*Foot 336445-001
*Keyboards
PS/2 537745-xx1
USB 537746-xx1
Wireless 674314-xx1
Washable 613125-xx1
Microtower (MT) chassis spare parts 29
Item Description Spare part number
Smart card 631411-xx1
Smartcard, CCID 701671-xx1
* not illustrated
Drives
Description Spare part number
Hard drives
1-TB hybrid hard drive (8-GB SSD) 724937-001
1-TB, 7200-rpm 636930-001
500-GB hybrid hard drive (8-GB SSD) 724938-001
500-GB, 7200-rpm 636929-001
500 GB, 7200 rpm, 2.5-inch, self-encrypting (SED) 696442-001
320-GB, 7200-rpm, 2.5-inch 634824-001
250-GB, 7200-rpm 636927-001
256-GB Solid-state Drive (SSD), self-encrypting (SED) 680020-001
160-GB Solid-state Drive (SSD) 646809-001
128-GB Solid-state Drive (SSD) 665961-001
120-GB Solid-state Drive (SSD) 661841-001
Optical drives
Blu-ray BD-Writer XL Drive 682219-001
16X SATA DVD±RW drive 660408-001
690418-001
16X SATA DVD-ROM drive 682550-001
Grommet, hard drive isolation, blue 450712-001
Misc boards
Description Spare part number
GeForce GT630 PCIe x16 graphics card, 2 GB (for use with Windows 8) 702084-001
nVidia Quadro NVS315 PCIe x16 graphics card, 1 GB (for use with Windows 8) 720837-001
nVidia Quadro NVS310 PCIe x16 graphics card, 512 MB (for use only with Windows 8) 707252-001
nVidia Quadro NVS300 PCIe x16 graphics card, 512 MB (for use with Windows 8) 700578-001
30 Chapter 4 Illustrated parts catalog
Description Spare part number
AMD Radeon HD8490 PCIe x16 graphics card, 1 GB (for use with Windows 8) 717219-001
AMD Radeon HD8470 PCIe x16 graphics card, 2 GB (for use with Windows 8) 729085-001
AMD Radeon HD7450 PCIe x16 graphics card, 1 GB (for use with Windows 8) 702647-001
AMD Radeon HD7450 PCIe x16 graphics card, 1 GB (for use only in China) 702646-001
AMD Radeon HD7450 PCIe x16 graphics card, 1 GB (includes adapter; not for use with Windows
8)
682411-001
AMD Radeon HD6350 PCIe x16 graphics card, 512 MB (for use with Windows 8) 697246-001
AMD Radeon HD6350 PCIe x16 graphics card, 512 MB (not for use with Windows 8) 637995-001
HP WLAN 802.11 g/n 1x2 PCIe NIC 538048-001
Intel PRO/1000, single port, GbE, NIC 728562-001
Intel Centrino Advanced-N 6205, 802.11a/b/g/n WLAN module 695915-001
HP USB 3.0 SuperSpeed PCIe x1 card 663213-001
HP USB 3.0 SuperSpeed power extension cable (for use with 663213-001) 663214-001
Sequential part number listing
Spare part
number
Description
202997-001 Adapter, DVI-I to VGA
336445-001 Feet
397117-001 Hard drive conversion bracket
450712-001 Grommet, hard drive isolation, blue
463023-001 DMS-59 to dual VGA cable
463024-001 DMS-59 to dual VGA DVI
487562-001 DisplayPort cable
508987-001 Clamp lock, includes universal cable (plate not included)
537745-xx1 PS/2 basic keyboard
537746-xx1 USB basic keyboard
537749-001 Mouse, USB, optical, jack black
538048-001 HP WLAN 802.11b/g/n card
570580-001 Mouse, USB, laser (non-ECO)
570838-001 Bezel blank, optical drive, 5.25-inch
682550-001 16X SATA DVD-ROM drive
Microtower (MT) chassis spare parts 31
Spare part
number
Description
583345-001 Antenna for use with 538048-001
583653-001 Bezel blank, 3.5-inch
585884-001 Chassis fan with guard
586721-001 2.5-in drive adapter
603250-001 Adapter, DisplayPort to VGA
608150-001 Mouse, wireless (not for use in APJ region)
609250-001 Mouse, PS2, optical, jack black (non-ECO)
609252-001 External USB webcam
613125-xx1 Washable keyboard
613764-001 320W, 90% efficient
613765-001 320W, standard
617450-001 Adapter, DisplayPort to HDMI
619580-001 Mouse, washable
631411-xx4 Smart card keyboard
634824-001 320-GB, 7200-rpm hard drive, 2.5 inch, SED
636166-001 Card reader, 22-in-1
636917-001 USB powered speakers
636927-001 250-GB, 7200-rpm hard drive
636929-001 500-GB, 7200-rpm hard drive
636930-001 1-TB, 7200-rpm hard drive
637995-001 AMD Radeon HD6350 PCIe x16 graphics card, 512 MB (not for use with Windows 8)
638815-001 Serial port PCI card
638816-001 Hood sensor
638817-001 Printer port, PCI card
639959-001 SATA cable, 17.7 inch, 2 straight ends
641498-001 Solenoid lock
642738-001 HP Business Digital Headset
643908-001 Chassis fan
645326-001 Heat sink (includes replacement thermal material)
645330-001 Speaker
645558-001 eSATA port assembly, PCI card
646809-001 160-GB Solid-state drive
32 Chapter 4 Illustrated parts catalog
Spare part
number
Description
646824-001 Fan duct assembly
646825-001 Access panel
646827-001 Front I/O assembly
646828-001 Power switch/LED with holder
646830-001 SATA cable, 18 inch, 1 straight end, 1 angled end
646833-001 Hard drive power cable
646834-001 Optical drive power cable
657401-001 Adapter, DVI-D to VGA
660408-001 DVD±RW drive
661841-001 120-GB Solid-state drive, SATA 2.0
662723-001 Adapter, DisplayPort to DVI
663213-001 HP USB 3.0 SuperSpeed PCIe x1 card
663214-001 HP USB 3.0 SuperSpeed power extension cable (for use with 663213-001)
665961-001 128-GB Solid-state drive, SATA 2.0
671612-001 Memory module, 2-GB, PC3 12800, CL11)
671613-001 Memory module, 4-GB, PC3 10600, 1333-MH
674314-xx1 Keyboard, wireless
674317-001 Mouse, wireless
680020-001 256-GB Solid-state drive, self-encrypting (SED), SATA 6.0
682219-001 Blu-ray BD-Writer XL Drive
682411-001 AMD Radeon HD7450 PCIe x16 graphics card, 1 GB (includes adapter; not for use with Windows 8)
689375-001 Memory module, 8-GB, PC3 12800, CL11
689377-001 Front bezel
690418-001 16X SATA DVD±RW drive
695915-001 Intel Centrino Advanced-N 6205, 802.11a/b/g/n WLAN module
696442-001 500-GB hard drive, 7200-rpm, 2.5-inch, SED
697246-001 AMD Radeon HD6350 PCIe x16 graphics card, 512 MB (for use only with Windows 8)
698877-001 USB powered speakers
700578-001 nVidia Quadro NVS300 PCIe x16 graphics card, 512 MB (for use only with Windows 8)
701671-xx1 Keyboard, USB, Smartcard, CCID
702084-001 GeForce GT630 PCIe x16 graphics card, 2 GB (for use only with Windows 8)
702646-001 AMD Radeon HD7450 PCIe x16 graphics card, 1 GB (for use only in China)
Microtower (MT) chassis spare parts 33
Spare part
number
Description
702647-001 AMD Radeon HD7450 PCIe x16 graphics card, 1 GB (for use only with Windows 8)
703596-001 System board for use in Windows 7 models (includes replacement thermal material)
703596-501 System board for use in Windows 8 Standard models (includes replacement thermal material)
703596-601 System board for use in Windows 8 Professional models (includes replacement thermal material)
703598-001 AMD A10-5800B, 3.8 GHz processor , 4-MB L2 cache (100-W), HD 7660D
703599-001 AMD A4-5300B processor, 3.4 GHz, 4-MB L2 cache (65-W), HD 7480D
703600-001 AMD A6-5400B, 3.6 GHz processor, 4-MB L2 cache (65-W), HD 7540D
703601-001 AMD A8-5500B, 3.2 GHz processor , 4-MB L2 cache (65-W), HD 7560D
707252-001 nVidia Quadro NVS310 PCIe x16 graphics card, 512 MB (for use only with Windows 8)
716390-001 Card reader, 14-in-1, USB2.0/3.0, 3.5-inch
716391-001 HP USB 3.0 Front Port Adapter
717219-001 AMD Radeon HD8490 PCIe x16 graphics card, 1 GB (for use with Windows 8)
720837-001 nVidia Quadro NVS315 PCIe x16 graphics card, 1 GB (for use with Windows 8)
724937-001 1 TB hybrid hard drive (8-GB SSD)
724938-001 500 GB hybrid hard drive (8-GB SSD)
728562-001 Intel PRO/1000, single port, GbE, NIC
729085-001 AMD Radeon HD8470 PCIe x16 graphics card, 2 GB (for use with Windows 8)
736835-001 Adapter, USB 3.0 to USB 2.0
34 Chapter 4 Illustrated parts catalog
Small Form Factor (SFF) chassis spare parts
Computer major components
Item Description Spare part number
(1) Front bezel 687950-001
Bezel blank (optical drive; not illustrated) 570838-001
Bezel blank (card reader; not illustrated) 583653-001
(2) Power supply
240W, 90% efficient 613762-001
240W, standard 613763-001
(3) System board (includes replacement thermal material)
For use in Windows 7 models 703596-001
For use in Windows 8 Standard models 703596-501
For use in Windows 8 Professional models 703596-601
(4) Access panel 646815-001
Small Form Factor (SFF) chassis spare parts 35
Item Description Spare part number
*Memory modules (PC3-12800, 1600-MHz)
8-GB 689375-001
4-GB 671613-001
2-GB 671612-001
*Processors (include replacement thermal material)
AMD A10-5800B, 3.8 GHz, 4-MB L2 cache (100-W), HD 7660D 703598-001
AMD A8-5500B, 3.2 GHz, 4-MB L2 cache (65-W), HD 7560D 703601-001
AMD A6-5400B, 3.6 GHz, 4-MB L2 cache (65-W), HD 7540D 703600-001
AMD A4-5300B, 3.4 GHz, 4-MB L2 cache (65-W), HD 7480D 703599-001
* not illustrated
36 Chapter 4 Illustrated parts catalog
Cables
Item Description Spare part number
(1) Front I/O and power switch assembly 636926-001
(2) HP USB 3.0 Front Port Adapter 716391-001
(3) SATA drive power cable 636923-001
*SATA cable, 19.5 inch, 2 straight ends 638813-001
*SATA cable, 25.2 inch, 1 straight end, 1 angled end (not illustrated) 638814-001
*DMS-59 to dual VGA cable 463023-001
*DMS-59 to dual DVI cable 463024-001
*Adapter, DisplayPort to VGA 603250-001
*Adapter, DisplayPort to DVI 662723-001
*Adapter, DVI-I to VGA 202997-001
*Adapter, DVI-D to VGA 657401-001
* Adapter, USB 3.0 to USB 2.0 736835-001
*Adapter, DisplayPort to HDMI 617450-001
Small Form Factor (SFF) chassis spare parts 37
Item Description Spare part number
*DisplayPort cable 487562-001
* not illustrated
Misc parts
Item Description Spare part number
(1) Chassis fan 645327-001
(2) Fan duct (not illustrated) 636921-001
38 Chapter 4 Illustrated parts catalog
Item Description Spare part number
(3) Heat sink (includes replacement thermal material) 645326-001
(4) Speaker 636925-001
(5) Solenoid lock 641471-001
(6) Printer port, PCI card 638817-001
(7) Hood sensor 638816-001
(8) Clamp lock, includes universal cable (plate not included) 508987-001
*Rubber feet 583654-001
*Chassis stand 688952-001
*Serial port, PCI card (not illustrated) 638815-001
*2.5-in drive adapter (not illustrated) 586721-001
*Hard drive conversion bracket 397117-001
*Grommet, hard drive isolation, blue (not illustrated) 450712-001
*Card reader, 22-in-1 (not illustrated) 636166-001
* Card reader, 14-in-1, USB 2.0/3.0, 3.5-inch 716390-001
*USB powered speakers (not illustrated) 636917-001
698877-001
*Mouse (not illustrated)
USB, optical, jack black 537749-001
Washable 619580-001
Wireless 674317-001
Wireless (not for use in APJ region) 608150-001
USB, laser (non-ECO) 570580-001
PS2, optical, jack black (non-ECO) 609250-001
*eSATA port assembly, PCI card (not illustrated) 645558-001
*Antenna for use with 538048-001 (not illustrated) 583345-001
*HP Business Digital Headset (not illustrated) 642738-001
*External USB webcam (not illustrated) 609252-001
*Keyboard (not illustrated)
PS/2 537745-xx1
USB 537746-xx1
USB, mini 674314-xx1
Washable 613125-xx1
Small Form Factor (SFF) chassis spare parts 39
Item Description Spare part number
Smart card 631411-xx1
Smartcard, CCID 701671-xx1
* not illustrated
Drives
Description Spare part number
Hard drive
1-TB hybrid hard drive (8-GB SSD) 724937-001
1-TB, 7200-rpm 636930-001
500-GB hybrid hard drive (8-GB SSD) 724938-001
500-GB, 7200-rpm, 2.5-inch, SED 696442-001
500-GB, 7200-rpm 636929-001
320-GB, 7200-rpm, 2.5-inch 634824-001
250-GB, 7200-rpm 636927-001
256-GB Solid-state Drive (SSD), self-encrypting (SED) 680020-001
160-GB Solid-state Drive (SSD) 646809-001
128-GB Solid-state Drive (SSD) 665961-001
120-GB Solid-state Drive (SSD) 661841-001
Optical drive
Blu-ray BD-Writer XL Drive 682219-001
16X SATA DVD±RW drive 660408-001
690418-001
16X SATA DVD-ROM drive 682550-001
Grommet, hard drive isolation, blue 450712-001
Misc boards
Description Spare part number
GeForce GT630 PCIe x16 graphics card, 2 GB (for use with Windows 8) 702084-001
nVidia Quadro NVS315 PCIe x16 graphics card, 1 GB (for use with Windows 8) 720837-001
nVidia Quadro NVS310 PCIe x16 graphics card, 512 MB (for use only with Windows 8) 707252-001
nVidia Quadro NVS300 PCIe x16 graphics card, 512 MB (for use with Windows 8) 700578-001
40 Chapter 4 Illustrated parts catalog
Description Spare part number
AMD Radeon HD8490 PCIe x16 graphics card, 1 GB (for use with Windows 8) 717219-001
AMD Radeon HD7450 PCIe x16 graphics card, 1 GB (for use only in China) 702646-001
AMD Radeon HD7450 PCIe x16 graphics card, 1 GB (for use with Windows 8) 705647-001
AMD Radeon HD7450 PCIe x16 graphics card, 1 GB (includes adapter; not for use with Windows
8)
682411-001
AMD Radeon HD6350 PCIe x16 graphics card, 512 MB (for use with Windows 8) 697246-001
AMD Radeon HD6350 PCIe x16 graphics card, 512 MB (not for use with Windows 8) 637995-001
Intel Centrino Advanced-N 6205, 802.11a/b/g/n WLAN module 695915-001
HP WLAN 802.11 g/n 1x2 PCIe NIC 538048-001
Intel PRO/1000, single port, GbE, NIC 728562-001
HP USB 3.0 SuperSpeed PCIe x1 card 663213-001
HP USB 3.0 SuperSpeed power extension cable (for use with 663213-001) 663214-001
Sequential part number listing
Spare part
number
Description
202997-001 Adapter, DVI-I to VGA
397117-001 Hard drive conversion bracket
450712-001 Grommet, hard drive isolation, blue
463023-001 DMS-59 to dual VGA cable
463024-001 DMS-59 to dual DVI cable
487562-001 DisplayPort cable
508987-001 Clamp lock, includes universal cable (plate not included)
537745-xx1 PS/2 basic keyboard
537746-xx1 USB basic keyboard
537749-001 Mouse, USB, optical, jack black
538048-001 HP WLAN 802.11b/g/n card
570580-001 Mouse, USB, laser (non-ECO)
570838-001 Bezel blank, optical drive, 5.25-inch
682550-001 DVD-ROM drive
583345-001 Antenna for use with 538048-001
583653-001 Bezel blank, 3.5-inch
Small Form Factor (SFF) chassis spare parts 41
Spare part
number
Description
583654-001 Rubber foot
586721-001 Drive adapter, 2.5-inch
688952-001 Chassis stand
608150-001 Mouse, wireless (not for use in APJ region)
609250-001 Mouse, PS2, optical, jack black (non-ECO)
609252-001 External USB webcam
613125-xx1 Washable keyboard
613762-001 320W, 90% efficient
613763-001 320W, standard
617450-001 Adapter, DisplayPort to HDMI
619580-001 Mouse, washable
631411-xx4 Smart card keyboard
603250-001 Adapter, DisplayPort to VGA
634824-001 320-GB, 7200-rpm hard drive, 2.5 inch, SED
636166-001 Card reader, 22-in-1
636917-001 USB powered speakers
636921-001 Fan duct
636923-001 SATA power cable
636925-001 Speaker
636926-001 Front I/O cable and power switch assembly
636927-001 250-GB, 7200-rpm hard drive
636929-001 500-GB, 7200-rpm hard drive
636930-001 1-TB, 7200-rpm hard drive
637995-001 AMD Radeon HD6350 PCIe x16 graphics card, 512 MB (not for use with Windows 8)
638813-001 SATA cable, 19.5 inch, 2 straight ends
638814-001 SATA cable, 25.2 inch, 1 straight end, 1 angled end
638815-001 Serial port PCI card
638816-001 Hood sensor
638817-001 Printer port, PCI card
641471-001 Solenoid lock
642738-001 HP Business Digital Headset
645326-001 Heat sink
42 Chapter 4 Illustrated parts catalog
Spare part
number
Description
645327-001 Chassis fan
645558-001 eSATA port assembly, PCI card
646809-001 160-GB Solid-state drive
646815-001 Access panel
657401-001 Adapter, DVI-D to VGA
660408-001 16X SATA DVD±RW drive
661841-001 120-GB Solid-state drive, SATA 2.0
662723-001 Adapter, DisplayPort to DVI
665961-001 128-GB Solid-state drive, SATA 2.0
671612-001 Memory module, 2-GB, PC3 12800, CL11)
671613-001 Memory module, 4-GB, PC3 10600, 1333-MH
674314-xx1 Keyboard, wireless
674317-001 Mouse, wireless
680020-001 256-GB Solid-state drive, self-encrypting (SED), SATA 6.0
682219-001 Blu-ray BD-Writer XL Drive
682411-001 AMD Radeon HD7450 PCIe x16 graphics card, 1 GB (includes adapter; not for use with Windows 8)
687950-001 Front bezel
689375-001 Memory module, 8-GB, PC3 12800, CL11
690418-001 16X SATA DVD±RW drive
695915-001 Intel Centrino Advanced-N 6205, 802.11a/b/g/n WLAN module
696422-001 500-GB hard drive, 7200-rpm, 2.5-inch, SED
697246-001 AMD Radeon HD6350 PCIe x16 graphics card, 512 MB (for use only with Windows 8)
698877-001 USB powered speakers
700578-001 nVidia Quadro NVS300 PCIe x16 graphics card, 512 MB (for use only with Windows 8)
701671-xx1 Keyboard, USB, Smartcard, CCID
702084-001 GeForce GT630 PCIe x16 graphics card, 2 GB (for use only with Windows 8)
702647-001 AMD Radeon HD7450 PCIe x16 graphics card, 1 GB (for use only with Windows 8)
703598-001 AMD A10-5800B processor, 3.8 GHz, 4-MB L2 cache (100-W), HD 7660D
703599-001 AMD A4-5300B processor, 3.4 GHz, 4-MB L2 cache (65-W), HD 7480D
703600-001 AMD A6-5400B processor, 3.6 GHz, 4-MB L2 cache (65-W), HD 7540D
703601-001 AMD A8-5500B processor, 3.2 GHz, 4-MB L2 cache (65-W), HD 7560D
707252-001 nVidia Quadro NVS310 PCIe x16 graphics card, 512 MB (for use only with Windows 8)
Small Form Factor (SFF) chassis spare parts 43
Spare part
number
Description
703596-001 System board for use in Windows 7 models (includes replacement thermal material)
703596-501 System board for use in Windows 8 Standard models
703596-601 System board for use in Windows 8 Professional models
716390-001 Card reader, 14-in-1, USB 2.0/3.0, 3.5-inch
716391-001 HP USB 3.0 Front Port Adapter
717219-001 AMD Radeon HD8490 PCIe x16 graphics card, 1 GB (for use with Windows 8)
720837-001 nVidia Quadro NVS315 PCIe x16 graphics card, 1 GB (for use with Windows 8)
724937-001 1 TB hybrid hard drive (8-GB SSD)
724938-001 500 GB hybrid hard drive (8-GB SSD)
728562-001 Intel PRO/1000, single port, GbE, NIC
736835-001 Adapter, USB 3.0 to USB 2.0
44 Chapter 4 Illustrated parts catalog
5 Routine Care, SATA Drive
Guidelines, and Disassembly
Preparation
This chapter provides general service information for the computer. Adherence to the procedures and
precautions described in this chapter is essential for proper service.
CAUTION: When the computer is plugged into an AC power source, voltage is always applied to
the system board. You must disconnect the power cord from the power source before opening the
computer to prevent system board or component damage.
Electrostatic Discharge Information
A sudden discharge of static electricity from your finger or other conductor can destroy static-sensitive
devices or microcircuitry. Often the spark is neither felt nor heard, but damage occurs. An electronic
device exposed to electrostatic discharge (ESD) may not appear to be affected at all and can work
perfectly throughout a normal cycle. The device may function normally for a while, but it has been
degraded in the internal layers, reducing its life expectancy.
Networks built into many integrated circuits provide some protection, but in many cases, the discharge
contains enough power to alter device parameters or melt silicon junctions.
Generating Static
The following table shows that:
●Different activities generate different amounts of static electricity.
●Static electricity increases as humidity decreases.
Relative Humidity
Event 55% 40% 10%
Walking across carpet
Walking across vinyl floor
Motions of bench worker
Removing DIPs from plastic tube
7,500 V
3,000 V
400 V
400 V
15,000 V
5,000 V
800 V
700 V
35,000 V
12,000 V
6,000 V
2,000 V
Electrostatic Discharge Information 45
Removing DIPs from vinyl tray
Removing DIPs from Styrofoam
Removing bubble pack from PCB
Packing PCBs in foam-lined box
2,000 V
3,500 V
7,000 V
5,000 V
4,000 V
5,000 V
20,000 V
11,000 V
11,500 V
14,500 V
26,500 V
21,000 V
These are then multi-packaged inside plastic tubes, trays, or Styrofoam.
NOTE: 700 volts can degrade a product.
Preventing Electrostatic Damage to Equipment
Many electronic components are sensitive to ESD. Circuitry design and structure determine the degree
of sensitivity. The following packaging and grounding precautions are necessary to prevent damage to
electric components and accessories.
●To avoid hand contact, transport products in static-safe containers such as tubes, bags, or boxes.
●Protect all electrostatic parts and assemblies with conductive or approved containers or
packaging.
●Keep electrostatic sensitive parts in their containers until they arrive at static-free stations.
●Place items on a grounded surface before removing them from their container.
●Always be properly grounded when touching a sensitive component or assembly.
●Avoid contact with pins, leads, or circuitry.
●Place reusable electrostatic-sensitive parts from assemblies in protective packaging or conductive
foam.
Personal Grounding Methods and Equipment
Use the following equipment to prevent static electricity damage to equipment:
●Wrist straps are flexible straps with a maximum of one-megohm ± 10% resistance in the ground
cords. To provide proper ground, a strap must be worn snug against bare skin. The ground cord
must be connected and fit snugly into the banana plug connector on the grounding mat or
workstation.
●Heel straps/Toe straps/Boot straps can be used at standing workstations and are
compatible with most types of shoes or boots. On conductive floors or dissipative floor mats, use
them on both feet with a maximum of one-megohm ± 10% resistance between the operator and
ground.
Static Shielding Protection Levels
46 Chapter 5 Routine Care, SATA Drive Guidelines, and Disassembly Preparation
Method Voltage
Antistatic plastic
Carbon-loaded plastic
Metallized laminate
1,500
7,500
15,000
Grounding the Work Area
To prevent static damage at the work area, use the following precautions:
●Cover the work surface with approved static-dissipative material. Provide a wrist strap connected
to the work surface and properly grounded tools and equipment.
●Use static-dissipative mats, foot straps, or air ionizers to give added protection.
●Handle electrostatic sensitive components, parts, and assemblies by the case or PCB laminate.
Handle them only at static-free work areas.
●Turn off power and input signals before inserting and removing connectors or test equipment.
●Use fixtures made of static-safe materials when fixtures must directly contact dissipative surfaces.
●Keep work area free of nonconductive materials such as ordinary plastic assembly aids and
Styrofoam.
●Use field service tools, such as cutters, screwdrivers, and vacuums, that are conductive.
Recommended Materials and Equipment
Materials and equipment that are recommended for use in preventing static electricity include:
●Antistatic tape
●Antistatic smocks, aprons, or sleeve protectors
●Conductive bins and other assembly or soldering aids
●Conductive foam
●Conductive tabletop workstations with ground cord of one-megohm +/- 10% resistance
●Static-dissipative table or floor mats with hard tie to ground
●Field service kits
●Static awareness labels
●Wrist straps and footwear straps providing one-megohm +/- 10% resistance
●Material handling packages
●Conductive plastic bags
●Conductive plastic tubes
●Conductive tote boxes
●Opaque shielding bags
Electrostatic Discharge Information 47
●Transparent metallized shielding bags
●Transparent shielding tubes
Operating Guidelines
To prevent overheating and to help prolong the life of the computer:
●Keep the computer away from excessive moisture, direct sunlight, and extremes of heat and cold.
●Operate the computer on a sturdy, level surface. Leave a 10.2-cm (4-inch) clearance on all vented
sides of the computer and above the monitor to permit the required airflow.
●Never restrict the airflow into the computer by blocking any vents or air intakes. Do not place the
keyboard, with the keyboard feet down, directly against the front of the desktop unit as this also
restricts airflow.
●Occasionally clean the air vents on all vented sides of the computer. Lint, dust, and other foreign
matter can block the vents and limit the airflow. Be sure to unplug the computer before cleaning
the air vents.
●Never operate the computer with the cover or side panel removed.
●Do not stack computers on top of each other or place computers so near each other that they are
subject to each other’s re-circulated or preheated air.
●If the computer is to be operated within a separate enclosure, intake and exhaust ventilation must
be provided on the enclosure, and the same operating guidelines listed above will still apply.
●Keep liquids away from the computer and keyboard.
●Never cover the ventilation slots on the monitor with any type of material.
●Install or enable power management functions of the operating system or other software, including
sleep states.
Routine Care
General Cleaning Safety Precautions
1. Never use solvents or flammable solutions to clean the computer.
2. Never immerse any parts in water or cleaning solutions; apply any liquids to a clean cloth and
then use the cloth on the component.
3. Always unplug the computer when cleaning with liquids or damp cloths.
4. Always unplug the computer before cleaning the keyboard, mouse, or air vents.
5. Disconnect the keyboard before cleaning it.
6. Wear safety glasses equipped with side shields when cleaning the keyboard.
48 Chapter 5 Routine Care, SATA Drive Guidelines, and Disassembly Preparation
Cleaning the Computer Case
Follow all safety precautions in General Cleaning Safety Precautions on page 48 before cleaning the
computer.
To clean the computer case, follow the procedures described below:
●To remove light stains or dirt, use plain water with a clean, lint-free cloth or swab.
●For stronger stains, use a mild dishwashing liquid diluted with water. Rinse well by wiping it with
a cloth or swab dampened with clear water.
●For stubborn stains, use isopropyl (rubbing) alcohol. No rinsing is needed as the alcohol will
evaporate quickly and not leave a residue.
●After cleaning, always wipe the unit with a clean, lint-free cloth.
●Occasionally clean the air vents on the computer. Lint and other foreign matter can block the vents
and limit the airflow.
Cleaning the Keyboard
Follow all safety precautions in General Cleaning Safety Precautions on page 48 before cleaning the
keyboard.
To clean the tops of the keys or the keyboard body, follow the procedures described in Cleaning the
Computer Case on page 49.
When cleaning debris from under the keys, review all rules in General Cleaning Safety Precautions
on page 48 before following these procedures:
CAUTION: Use safety glasses equipped with side shields before attempting to clean debris from
under the keys.
●Visible debris underneath or between the keys may be removed by vacuuming or shaking.
●Canned, pressurized air may be used to clean debris from under the keys. Caution should be used
as too much air pressure can dislodge lubricants applied under the wide keys.
●If you remove a key, use a specially designed key puller to prevent damage to the keys. This tool
is available through many electronic supply outlets.
CAUTION: Never remove a wide leveled key (like the space bar) from the keyboard. If these
keys are improperly removed or installed, the keyboard may not function properly.
●Cleaning under a key may be done with a swab moistened with isopropyl alcohol and squeezed
out. Be careful not to wipe away lubricants necessary for proper key functions. Use tweezers to
remove any fibers or dirt in confined areas. Allow the parts to air dry before reassembly.
Cleaning the Monitor
●Wipe the monitor screen with a clean cloth moistened with water or with a towelette designed for
cleaning monitors. Do not use sprays or aerosols directly on the screen; the liquid may seep into
the housing and damage a component. Never use solvents or flammable liquids on the monitor.
●To clean the monitor body follow the procedures in Cleaning the Computer Case on page 49.
Routine Care 49
Cleaning the Mouse
Before cleaning the mouse, ensure that the power to the computer is turned off.
●Clean the mouse ball by first removing the retaining plate and the ball from the housing. Pull out
any debris from the ball socket and wipe the ball with a clean, dry cloth before reassembly.
●To clean the mouse body, follow the procedures in Cleaning the Computer Case on page 49.
Service Considerations
Listed below are some of the considerations that you should keep in mind during the disassembly and
assembly of the computer.
Power Supply Fan
The power supply fan is a variable-speed fan based on the temperature in the power supply.
CAUTION: The cooling fan is always on when the computer is in the “On” mode. The cooling fan is
off when the computer is in “Standby,” “Suspend,” or “Off” modes.
You must disconnect the power cord from the power source before opening the computer to prevent
system board or component damage.
Tools and Software Requirements
To service the computer, you need the following:
●Torx T-15 screwdriver (HP screwdriver with bits, PN 161946-001)
●Torx T-15 screwdriver with small diameter shank (for certain front bezel removal)
●Flat-bladed screwdriver (may sometimes be used in place of the Torx screwdriver)
●Phillips #2 screwdriver
●Diagnostics software
●HP tamper-resistant T-15 wrench (Smart Cover FailSafe Key, PN 166527-001) or HP tamper-
resistant bits (Smart Cover FailSafe Key, PN 166527-002)
Screws
The screws used in the computer are not interchangeable. They may have standard or metric threads
and may be of different lengths. If an incorrect screw is used during the reassembly process, it can
damage the unit. HP strongly recommends that all screws removed during disassembly be kept with the
part that was removed, then returned to their proper locations.
CAUTION: Metric screws have a black finish. U.S. screws have a silver finish and are used on hard
drives only.
CAUTION: As each subassembly is removed from the computer, it should be placed away from the
work area to prevent damage.
50 Chapter 5 Routine Care, SATA Drive Guidelines, and Disassembly Preparation
Cables and Connectors
Most cables used throughout the unit are flat, flexible cables. These cables must be handled with care
to avoid damage. Apply only the tension required to seat or unseat the cables during insertion or
removal from the connector. Handle cables by the connector whenever possible. In all cases, avoid
bending or twisting the cables, and ensure that the cables are routed in such a way that they cannot be
caught or snagged by parts being removed or replaced.
CAUTION: When servicing this computer, ensure that cables are placed in their proper location
during the reassembly process. Improper cable placement can damage the computer.
Hard Drives
Handle hard drives as delicate, precision components, avoiding all physical shock and vibration. This
applies to failed drives as well as replacement spares.
●If a drive must be mailed, place the drive in a bubble-pack mailer or other suitable protective
packaging and label the package “Fragile: Handle With Care.”
●Do not remove hard drives from the shipping package for storage. Keep hard drives in their
protective packaging until they are actually mounted in the CPU.
●Avoid dropping drives from any height onto any surface.
●If you are inserting or removing a hard drive, turn off the computer. Do not remove a hard drive
while the computer is on or in standby mode.
●Before handling a drive, ensure that you are discharged of static electricity. While handling a
drive, avoid touching the connector. For more information about preventing electrostatic damage,
refer to Electrostatic Discharge Information on page 45
●Do not use excessive force when inserting a drive.
●Avoid exposing a hard drive to liquids, temperature extremes, or products that have magnetic
fields such as monitors or speakers.
Lithium Coin Cell Battery
The battery that comes with the computer provides power to the real-time clock and has a minimum
lifetime of about three years.
See the appropriate removal and replacement chapter for the chassis you are working on in this guide
for instructions on the replacement procedures.
WARNING! This computer contains a lithium battery. There is a risk of fire and chemical burn if the
battery is handled improperly. Do not disassemble, crush, puncture, short external contacts, dispose in
water or fire, or expose it to temperatures higher than 140ºF (60ºC). Do not attempt to recharge the
battery.
NOTE: Batteries, battery packs, and accumulators should not be disposed of together with the
general household waste. In order to forward them to recycling or proper disposal, please use the
public collection system or return them to HP, their authorized partners, or their agents.
Service Considerations 51
SATA Hard Drives
Serial ATA Hard Drive Characteristics
Number of pins/conductors in data cable 7/7
Number of pins in power cable 15
Maximum data cable length 39.37 in (100 cm)
Data interface voltage differential 400-700 mV
Drive voltages 3.3 V, 5 V, 12 V
Jumpers for configuring drive N/A
Data transfer rate 3.0 Gb/s
SATA Hard Drive Cables
SATA Data Cable
Always use an HP approved SATA 3.0 Gb/s cable as it is fully backwards compatible with the SATA
1.5 Gb/s drives.
Current HP desktop products ship with SATA 3.0 Gb/s hard drives.
SATA data cables are susceptible to damage if overflexed. Never crease a SATA data cable and never
bend it tighter than a 30 mm (1.18 in) radius.
The SATA data cable is a thin, 7-pin cable designed to transmit data for only a single drive.
SMART ATA Drives
The Self Monitoring Analysis and Recording Technology (SMART) ATA drives for the HP Personal
Computers have built-in drive failure prediction that warns the user or network administrator of an
impending failure or crash of the hard drive. The SMART drive tracks fault prediction and failure
indication parameters such as reallocated sector count, spin retry count, and calibration retry count. If
the drive determines that a failure is imminent, it generates a fault alert.
Cable Management
Always follow good cable management practices when working inside the computer.
●Keep cables away from major heat sources like the heat sink.
●Do not jam cables on top of expansion cards or memory modules. Printed circuit cards like these
are not designed to take excessive pressure on them.
●Keep cables clear of sliding or moveable parts to prevent them from being cut or crimped when
the parts are moved.
52 Chapter 5 Routine Care, SATA Drive Guidelines, and Disassembly Preparation
●When folding a flat ribbon cable, never fold to a sharp crease. Sharp creases may damage the
wires.
●Some flat ribbon cables come prefolded. Never change the folds on these cables.
●Do not bend any cable sharply. A sharp bend can break the internal wires.
●Never bend a SATA data cable tighter than a 30 mm (1.18 in) radius.
●Never crease a SATA data cable.
●Do not rely on components like the drive cage, power supply, or computer cover to push cables
down into the chassis. Always position the cables to lay properly by themselves.
Hard Drive Capacities
The combination of the file system and the operating system used in the computer determines the
maximum usable size of a drive partition. A drive partition is the largest segment of a drive that may be
properly accessed by the operating system. A single hard drive may therefore be subdivided into a
number of unique drive partitions in order to make use of all of its space.
Because of the differences in the way that drive sizes are calculated, the size reported by the operating
system may differ from that marked on the hard drive or listed in the computer specification. Drive size
calculations by drive manufacturers are bytes to the base 10 while calculations by Microsoft are bytes
to the base 2.
Drive/Partition Capacity Limits
Maximum Size
File System Controller Type Operating System Partition Drive
FAT 32 ATA Windows 7 32 GB 2 TB
NTFS ATA Windows 7 2 TB 2 TB
Hard Drive Capacities 53
6 Removal and Replacement
Procedures Microtower (MT)
Chassis
Adherence to the procedures and precautions described in this chapter is essential for proper service.
After completing all necessary removal and replacement procedures, run the Diagnostics utility to verify
that all components operate properly.
NOTE: Not all features listed in this guide are available on all computers.
Preparation for Disassembly
See Routine Care, SATA Drive Guidelines, and Disassembly Preparation on page 45 for initial safety
procedures.
1. Remove/disengage any security devices that prohibit opening the computer.
2. Close any open software applications.
3. Exit the operating system.
4. Remove any compact disc or media card from the computer.
5. Turn off the computer and any peripheral devices that are connected to it.
CAUTION: Turn off the computer before disconnecting any cables.
Regardless of the power-on state, voltage is always present on the system board as long as the
system is plugged into an active AC outlet. In some systems the cooling fan is on even when the
computer is in the “Standby,” or “Suspend” modes. The power cord should always be
disconnected before servicing a unit.
6. Disconnect the power cord from the electrical outlet and then from the computer.
7. Disconnect all peripheral device cables from the computer.
8. As applicable, lay the computer down on its side to achieve a safe working position.
NOTE: During disassembly, label each cable as you remove it, noting its position and routing.
Keep all screws with the units removed.
CAUTION: The screws used in the computer are of different thread sizes and lengths; using the
wrong screw in an application may damage the unit.
54 Chapter 6 Removal and Replacement Procedures Microtower (MT) Chassis
Computer Access Panel
Description Spare part number
Access panel 646825-001
To access internal components, you must remove the access panel:
1. Prepare the computer for disassembly (Preparation for Disassembly on page 54)
2. Loosen the two captive thumbscrews (1) that secure the access panel to the computer chassis.
3. Use the handle located between the thumbscrews to lift the access panel off the unit (2).
NOTE: You may want to lay the computer on its side to install internal parts. Be sure the side
with the access panel is facing up.
Figure 6-1 Removing the Computer Access Panel
Computer Access Panel 55
Front Bezel
Description Spare part number
Front bezel 689377-001
1. Prepare the computer for disassembly (Preparation for Disassembly on page 54)
2. Remove the access panel (Computer Access Panel on page 55)
3. Lift up the three tabs on the side of the bezel (1), then rotate the bezel off the chassis (2).
Figure 6-2 Removing the Front Bezel
56 Chapter 6 Removal and Replacement Procedures Microtower (MT) Chassis
Front Bezel Security
The front bezel can be locked in place by installing a security screw provided by HP. To install the
security screw:
1. Remove/disengage any security devices that prohibit opening the computer.
2. Remove all removable media, such as compact discs or USB flash drives, from the computer.
3. Turn off the computer properly through the operating system, then turn off any external devices.
4. Disconnect the power cord from the power outlet and disconnect any external devices.
CAUTION: Regardless of the power-on state, voltage is always present on the system board as
long as the system is plugged into an active AC outlet. You must disconnect the power cord to
avoid damage to the internal components of the computer.
5. Remove the access panel and front bezel.
6. Remove the security screw from the inside of the front bezel.
Figure 6-3 Retrieving the Front Bezel Security Screw
7. Replace the front bezel.
Front Bezel Security 57
8. Install the screw through the interior of the front of the chassis into the front bezel. The screw hole
is located toward the middle of the right edge of the chassis between the hard drive bay and
speaker.
Figure 6-4 Installing the Front Bezel Security Screw
9. Replace the access panel.
10. Reconnect the power cord and turn on the computer.
11. Lock any security devices that were disengaged when the access panel was removed.
58 Chapter 6 Removal and Replacement Procedures Microtower (MT) Chassis
Bezel Blanks
Description Spare part number
3.5-inch bezel blank 583653-001
5.25-inch bezel blank, optical drive 570838-001
On some models, there are bezel blanks covering the 3.5-inch and 5.25-inch drive bays that need to
be removed before installing a drive. To remove a bezel blank:
1. Remove the access panel (Computer Access Panel on page 55)
2. Remove the front bezel (Front Bezel on page 56)
3. To remove a bezel blank, push the two retaining tabs that hold the bezel blank in place towards
the outer right edge of the bezel (1) and slide the bezel blank back and to the right to remove it
(2).
Figure 6-5 Removing a Bezel Blank
Bezel Blanks 59
Memory
Description Spare part number
8-GB, PC3-12800 689375-001
4-GB, PC3-12800 671613-001
2-GB, PC3-12800 671612-001
The computer comes with double data rate 3 synchronous dynamic random access memory (DDR3-
SDRAM) dual inline memory modules (DIMMs).
DIMMs
The memory sockets on the system board can be populated with up to four industry-standard DIMMs.
These memory sockets are populated with at least one preinstalled DIMM. To achieve the maximum
memory support, you can populate the system board with up to 32-GB of memory configured in a high-
performing dual channel mode.
DDR3-SDRAM DIMMs
CAUTION: This product DOES NOT support DDR3 Ultra Low Voltage (DDR3U) memory. The
processor is not compatible with DDR3U memory and if you plug DDR3U memory into the system
board, it can cause the physical damage to the DIMM or invoke system malfunction.
For proper system operation, the DDR3-SDRAM DIMMs must be:
●industry-standard 240-pin
●unbuffered non-ECC PC3-PC12800 DDR3-1600 MHz-compliant
●1.35 volt or 1.5 volt DDR3/DDR3L-SDRAM DIMMs
The DDR3-SDRAM DIMMs must also:
●support CAS latency 11 DDR3 1600 MHz (11-11-11 timing)
●contain the mandatory JEDEC SPD information
In addition, the computer supports:
●512-Mbit, 1-Gbit, 2-Gbit, 4-Gbit, and 8-Gbit non-ECC memory technologies
●single-sided and double-sided DIMMs
●DIMMs constructed with x8 and x16 DDR devices; DIMMs constructed with x4 SDRAM are not
supported
NOTE: The system will not operate properly if you install unsupported DIMMs.
60 Chapter 6 Removal and Replacement Procedures Microtower (MT) Chassis
Populating DIMM Sockets
There are four DIMM sockets on the system board, with two sockets per channel. The sockets are
labeled DIMM1, DIMM2, DIMM3, and DIMM4. Sockets DIMM1 and DIMM2 operate in memory
channel B. Sockets DIMM3 and DIMM4 operate in memory channel A.
The system will automatically operate in single channel mode, dual channel mode, or flex mode,
depending on how the DIMMs are installed.
NOTE: Single channel and unbalanced dual channel memory configurations will result in inferior
graphics performance.
●The system will operate in single channel mode if the DIMM sockets are populated in one channel
only.
●The system will operate in a higher-performing dual channel mode if the total memory capacity of
the DIMMs in Channel A is equal to the total memory capacity of the DIMMs in Channel B. The
technology and device width can vary between the channels. For example, if Channel A is
populated with two 1-GB DIMMs and Channel B is populated with one 2-GB DIMM, the system
will operate in dual channel mode.
●The system will operate in flex mode if the total memory capacity of the DIMMs in Channel A is
not equal to the total memory capacity of the DIMMs in Channel B. In flex mode, the channel
populated with the least amount of memory describes the total amount of memory assigned to dual
channel and the remainder is assigned to single channel. For optimal speed, the channels should
be balanced so that the largest amount of memory is spread between the two channels. If one
channel will have more memory than the other, the larger amount should be assigned to Channel
A. For example, if you are populating the sockets with one 2-GB DIMM, and three 1-GB DIMMs,
Channel A should be populated with the 2-GB DIMM and one 1-GB DIMM, and Channel B should
be populated with the other two 1-GB DIMMs. With this configuration, 4-GB will run as dual
channel and 1-GB will run as single channel.
●In any mode, the maximum operational speed is determined by the slowest DIMM in the system.
Memory 61
Installing DIMMs
CAUTION: You must disconnect the power cord and wait approximately 30 seconds for the power
to drain before adding or removing memory modules. Regardless of the power-on state, voltage is
always supplied to the memory modules as long as the computer is plugged into an active AC outlet.
Adding or removing memory modules while voltage is present may cause irreparable damage to the
memory modules or system board.
The memory module sockets have gold-plated metal contacts. When upgrading the memory, it is
important to use memory modules with gold-plated metal contacts to prevent corrosion and/or
oxidation resulting from having incompatible metals in contact with each other.
Static electricity can damage the electronic components of the computer or optional cards. Before
beginning these procedures, ensure that you are discharged of static electricity by briefly touching a
grounded metal object. For more information, refer to Electrostatic Discharge Information on page 45.
When handling a memory module, be careful not to touch any of the contacts. Doing so may damage
the module.
1. Prepare the computer for disassembly (Preparation for Disassembly on page 54)
2. Remove the access panel (Computer Access Panel on page 55)
3. Open both latches of the memory module socket (1), and insert the memory module into the
socket (2).
Figure 6-6 Installing a DIMM
NOTE: A memory module can be installed in only one way. Match the notch on the module with
the tab on the memory socket.
Populate the black DIMM sockets before the white DIMM sockets.
For maximum performance, populate the sockets so that the memory capacity is spread as equally
as possible between Channel A and Channel B. Refer to Populating DIMM Sockets on page 61
for more information.
62 Chapter 6 Removal and Replacement Procedures Microtower (MT) Chassis
4. Push the module down into the socket, ensuring that the module is fully inserted and properly
seated. Make sure the latches are in the closed position (3).
5. Repeat steps 3 and 4 to install any additional modules.
6. Replace the computer access panel.
7. Reconnect the power cord and turn on the computer.
8. Lock any security devices that were disengaged when the access panel was removed.
The computer should automatically recognize the additional memory the next time you turn on the
computer.
Memory 63
Expansion Cards
Description Spare part number
GeForce GT630 PCIe x16 graphics card, 2 GB (for use only with Windows 8) 702084-001
nVidia Quadro NVS315 PCIe x16 graphics card, 1 GB (for use with Windows 8) 720837-001
nVidia Quadro NVS310 PCIe x16 graphics card, 512 MB (for use only with Windows 8) 707252-001
nVidia Quadro NVS300 PCIe x16 graphics card, 512 MB (for use only with Windows 8) 700578-001
AMD Radeon HD8490 PCIe x16 graphics card, 1 GB (for use with Windows 8) 717219-001
AMD Radeon HD8470 PCIe x16 graphics card, 2 GB (for use with Windows 8) 729085-001
AMD Radeon HD7450 PCIe x16 graphics card, 1 GB (for use only in China) 702646-001
AMD Radeon HD7450 PCIe x16 graphics card, 1 GB (includes adapter; for use only with
Windows 8)
702647-001
AMD Radeon HD7450 PCIe x16 graphics card, 1 GB (includes adapter; not for use with Windows
8)
682411-001
AMD Radeon HD6350 PCIe x16 graphics card, 512 MB (for use only with Windows 8) 697246-001
AMD Radeon HD6350 PCIe x16 graphics card, 512 MB (not for use with Windows 8) 637995-001
HP WLAN 802.11 g/n 1x2 PCIe NIC 538048-001
Intel PRO/1000, single port, GbE, NIC 728562-001
HP USB 3.0 SuperSpeed PCIe x1 card 663213-001
HP USB 3.0 SuperSpeed power extension cable (for use with 663213-001) 663214-001
The computer has one PCI expansion slot, one PCI Express x1 expansion slot, one PCI Express x16
expansion slot, and one PCI Express x16 expansion slot that is downshifted to a x4 slot.
NOTE: You can install a PCI Express x1, x4, x8, or x16 expansion card in the PCI Express x16 slot.
To remove, replace, or add an expansion card:
1. Prepare the computer for disassembly (Preparation for Disassembly on page 54)
2. Remove the access panel (Computer Access Panel on page 55)
3. Locate the correct vacant expansion socket on the system board and the corresponding expansion
slot on the back of the computer chassis.
64 Chapter 6 Removal and Replacement Procedures Microtower (MT) Chassis
4. Release the slot cover retention latch that secures the PCI slot covers by lifting the green tab on the
latch and rotating the latch to the open position.
Figure 6-7 Opening the Expansion Slot Retainer
5. Before installing an expansion card, remove the expansion slot cover or the existing expansion
card.
NOTE: Before removing an installed expansion card, disconnect any cables that may be
attached to the expansion card.
a. If you are installing an expansion card in a vacant socket, remove the appropriate expansion
slot cover on the back of the chassis. Pull the slot cover straight up then away from the inside
of the chassis.
Figure 6-8 Removing an Expansion Slot Cover
Expansion Cards 65
b. If you are removing a standard PCI card or PCI Express x1 card, hold the card at each end,
and carefully rock it back and forth until the connectors pull free from the socket. Pull the
expansion card straight up from the socket then away from the inside of the chassis to release
it from the chassis frame. Be sure not to scrape the card against the other components.
Figure 6-9 Removing a Standard PCI Expansion Card
c. If you are removing a PCI Express x16 card, pull the retention arm on the back of the
expansion socket away from the card and carefully rock the card back and forth until the
connectors pull free from the socket. Pull the expansion card straight up from the socket then
away from the inside of the chassis to release it from the chassis frame. Be sure not to scrape
the card against the other components.
Figure 6-10 Removing a PCI Express x16 Expansion Card
6. Store the removed card in anti-static packaging.
66 Chapter 6 Removal and Replacement Procedures Microtower (MT) Chassis
7. If you are not installing a new expansion card, install an expansion slot cover to close the open
slot.
CAUTION: After removing an expansion card, you must replace it with a new card or
expansion slot cover for proper cooling of internal components during operation.
8. To install a new expansion card, hold the card just above the expansion socket on the system
board then move the card toward the rear of the chassis so that the bracket on the card is aligned
with the open slot on the rear of the chassis. Press the card straight down into the expansion
socket on the system board.
Figure 6-11 Installing an Expansion Card
NOTE: When installing an expansion card, press firmly on the card so that the whole connector
seats properly in the expansion card slot.
9. Rotate the slot cover retention latch back in place to secure the expansion card.
10. Connect external cables to the installed card, if needed. Connect internal cables to the system
board, if needed.
11. Replace the computer access panel.
12. Reconnect the power cord and turn on the computer.
13. Lock any security devices that were disengaged when the access panel was removed.
14. Reconfigure the computer, if necessary.
WLAN module
Description Spare part number
Intel® Centrino™ Advanced-N 6205, 802.11a/b/g/n WLAN module 695915-001
WLAN module 67
CAUTION: To prevent an unresponsive system, replace the wireless module only with a wireless
module authorized for use in the computer by the governmental agency that regulates wireless devices
in your country or region. If you replace the module and then receive a warning message, remove the
module to restore device functionality, and then contact technical support.
Before removing the WLAN module, follow these steps:
1. Prepare the computer for disassembly (Preparation for Disassembly on page 54)
2. Remove the access panel (Computer Access Panel on page 55)
Remove the WLAN module:
1. Disconnect the WLAN antenna cables (1) from the terminals on the WLAN module.
NOTE: The WLAN antenna cable labeled “1” connects to the WLAN module “Main” terminal
labeled “1”. The WLAN antenna cable labeled “2” connects to the WLAN module “Aux” terminal
labeled “2”. If the computer is equipped with an 802.11a/b/g/n WLAN module, the yellow
WLAN antenna cable connects to the middle terminal on the WLAN module.
2. Remove the two Phillips PM2.0×3.0 screws (2) that secure the WLAN module to the system
board. (The WLAN module tilts up.)
3. Remove the WLAN module (3) by pulling the module away from the slot at an angle.
NOTE: WLAN modules are designed with a notch to prevent incorrect insertion of the WLAN
module into the WLAN module slot.
Reverse this procedure to install the WLAN module.
68 Chapter 6 Removal and Replacement Procedures Microtower (MT) Chassis
System Board Connections
Refer to the following illustrations and tables to identify the system board connectors for your model.
Figure 6-12 System Board Connections
Table 6-1 System Board Connections
No. System Board Connector System Board Label Color Component
1 DIMM4 (Channel A) DIMM4 white Memory Module
2 DIMM3 (Channel A) DIMM3 black Memory Module
3 DIMM2 (Channel B) DIMM2 white Memory Module
4 DIMM1 (Channel B) DIMM1 black Memory Module
5 eSATA ESATA black eSATA Adapter Cable, or 2nd
Optical Drive
6 SATA 2.0 SATA2 white 1st Optical Drive
7 Power SATAS_PWR2 black SATA Hard Drives
8 Power SATAS_PWR1 black SATA Optical Drives
9 SATA 3.0 SATA1 light blue 2nd Hard Drive, or 2nd Optical
Drive if an ESATA Adapter Cable
exists
10 SATA 3.0 SATA0 dark blue 1st Hard Drive
11 Serial Port COMB black Serial Port
12 Parallel Port PAR black Parallel Port
13 USB MEDIA2 black Second Media Card Reader
14 Hood Lock HLCK black USB Device, such as a Media Card
Reader
15 Hood Sensor HSENSE white Hood Sensor
System Board Connections 69
Table 6-1 System Board Connections (continued)
No. System Board Connector System Board Label Color Component
16 USB MEDIA black USB Device, such as a Media Card
Reader
17 PCI Express x1 X1PCIEXP1 black Expansion Card
18 PCI Express x16 downshifted
to a x4
X4PCIEXP white Expansion Card
19 PCI Express x16 X16PCIEXP black Expansion Card
20 PCI PCI1 white Expansion Card
Drives
Description Spare part number
DVD±RW drive 660408-001
690418-001
DVD-ROM drive 682550-001
Blu-ray BD-Writer XL Drive 682219-001
1 TB hybrid hard drive (8-GB SSD) 724937-001
1 TB, 7200 rpm SATA hard drive 636930-001
500 GB hybrid hard drive (8-GB SSD) 724938-001
500 GB, 7200 rpm, 2.5 inch, SED, SATA hard drive 696422-001
500 GB, 7200 rpm SATA hard drive 636929-001
320 GB, 7200 rpm SATA hard drive, 2.5-inch 634824-001
250 GB, 7200 rpm SATA hard drive 636927-001
256 GB Solid State Drive (SSD), self-encrypting (SED) 680020-001
160 GB Solid State Drive (SSD) 646809-001
128 GB Solid State Drive (SSD) 665961-001
120 GB Solid State Drive (SSD) 661841-001
70 Chapter 6 Removal and Replacement Procedures Microtower (MT) Chassis
When installing drives, follow these guidelines:
●The primary Serial ATA (SATA) hard drive must be connected to the dark blue primary SATA
connector on the system board labeled SATA0. If you are adding a second hard drive, connect it
to the light blue connector on the system board labeled SATA1.
●Connect the first SATA optical drive to the white SATA connector on the system board labeled
SATA2. If you are adding a second optical drive connect it to the black SATA connector on the
system board labeled ESATA. If the ESATA connector is already populated, connect the second
optical drive to the light blue connector on the system board labeled SATA1.
●Connect an optional eSATA adapter cable to the black SATA connector on the system board
labeled ESATA.
●Connect a media card reader USB cable to the USB connector on the system board labeled
MEDIA.
●The power cable for the SATA optical drives is a two-headed cable this is plugged into the system
board with the first connector routed to the top 5.25-inch bay and the second connector routed to
the bottom 5.25-inch bay.
●The power cable for the SATA hard drives is a two-headed cable this is plugged into the system
board with the first connector routed to the bottom 3.5-inch bay and the second connector routed
to the top 3.5-inch bay.
●The system does not support Parallel ATA (PATA) optical drives or PATA hard drives.
●You must install guide screws to ensure the drive will line up correctly in the drive cage and lock in
place. HP has provided extra guide screws for the drive bays (four 6-32 isolation mounting guide
screws and eight M3 metric guide screws), installed on the side of the drive bays. The 6-32
isolation mounting screws are required for a secondary hard drive. All other drives (except the
primary hard drive) use M3 metric screws. The HP-supplied metric screws are black and the HP-
supplied isolation mounting screws are silver and blue. If you are replacing the primary hard
drive, you must remove the four silver and blue 6-32 isolation mounting guide screws from the old
hard drive and install them in the new hard drive.
Figure 6-13 Extra Guide Screw Locations
Drives 71
No. Guide Screw Device
1 Black M3 Metric Screws All Drives (except hard drives)
2 Silver and Blue 6-32 Isolation Mounting Screws Secondary Hard Drive
CAUTION: To prevent loss of work and damage to the computer or drive:
If you are inserting or removing a drive, shut down the operating system properly, turn off the
computer, and unplug the power cord. Do not remove a drive while the computer is on or in standby
mode.
Before handling a drive, ensure that you are discharged of static electricity. While handling a drive,
avoid touching the connector.
Handle a drive carefully; do not drop it.
Do not use excessive force when inserting a drive.
Avoid exposing a hard drive to liquids, temperature extremes, or products that have magnetic fields
such as monitors or speakers.
If a drive must be mailed, place the drive in a bubble-pack mailer or other protective packaging and
label the package “Fragile: Handle With Care.”
Drive Positions
Figure 6-14 Drive Positions
Table 6-2 Drive Positions
1 Two 5.25-inch drive bays for optional drives (optical drives shown)
2 One 3.5-inch drive bay for optional drive (media card reader shown)
72 Chapter 6 Removal and Replacement Procedures Microtower (MT) Chassis
Table 6-2 Drive Positions (continued)
3 Secondary 3.5-inch internal hard drive bay for optional hard drive
4 Primary 3.5-inch internal hard drive bay
NOTE: The drive configuration on your computer may be different than the drive
configuration shown above.
To verify the type and size of the storage devices installed in the computer, run Computer Setup.
Removing a 5.25-inch or 3.5-inch Drive from a Drive Bay
CAUTION: All removable media should be taken out of a drive before removing the drive from the
computer.
1. Prepare the computer for disassembly (Preparation for Disassembly on page 54)
2. Remove the access panel (Computer Access Panel on page 55)
3. Remove the front bezel (Front Bezel on page 56)
4. Disconnect the drive cables, as indicated in the following illustrations.
CAUTION: When removing the cables, pull the tab or connector instead of the cable itself to
avoid damaging the cable.
a. If you are removing an optical drive, disconnect the power cable (1) and data cable (2)
from the back of the drive.
Figure 6-15 Disconnecting the Optical Drive Cables
Drives 73
b. If you are removing a media card reader, disconnect the USB cable from the system board.
Figure 6-16 Disconnecting the Media Card Reader USB Cable
5. A latch drive bracket with release tabs secures the drives in the drive bay. Lift the release tab on
the latch drive bracket (1) for the drive you want to remove, then slide the drive from its drive bay
(2).
Figure 6-17 Removing the Drives
74 Chapter 6 Removal and Replacement Procedures Microtower (MT) Chassis
Installing a 5.25-inch or 3.5-inch Drive into a Drive Bay
1. Prepare the computer for disassembly (Preparation for Disassembly on page 54)
2. Remove the access panel (Computer Access Panel on page 55)
3. Remove the front bezel (Front Bezel on page 56)
4. If you are installing a drive in a bay covered by a bezel blank, remove the bezel blank. See Bezel
Blanks on page 59 for more information.
5. Install four M3 metric guide screws in the lower holes on each side of the drive. HP has provided
eight extra M3 metric guide screws on the front of the chassis, under the front bezel. The M3
metric guide screws are black. Refer to Drives on page 70 for an illustration of the extra M3
metric guide screws location.
NOTE: When replacing the drive, transfer the four M3 metric guide screws from the old drive to
the new one.
CAUTION: Use only 5-mm long screws as guide screws. Longer screws can damage the
internal components of the drive.
Figure 6-18 Installing Guide Screws (Optical Drive Shown)
6. Slide the drive into the drive bay, making sure to align the guide screws with the guide slots, until
the drive snaps into place.
Figure 6-19 Sliding the Drives into the Drive Cage
Drives 75
7. Connect the power and data cables to the drive as indicated in the following illustrations.
a. If you are installing an optical drive, connect the power cable (1) and data cable (2) to the
back of the drive.
NOTE: The power cable for the optical drives is a two-headed cable that is routed from the
system board to the rear of the optical drive bays.
Figure 6-20 Connecting the Optical Drive Cables
b. If your are installing a media card reader, connect the USB cable to the USB system board
connector labeled MEDIA.
Figure 6-21 Connecting the Media Card Reader USB Cable
76 Chapter 6 Removal and Replacement Procedures Microtower (MT) Chassis
8. If installing a new drive, connect the opposite end of the data cable to the appropriate system
board connector.
NOTE: If you are installing a new SATA optical drive, connect the data cable for the first optical
drive to the white SATA connector on the system board labeled SATA2. Connect the data cable
for a second optical drive to the black SATA connector on the system board labeled ESATA. If the
ESATA connector is already populated, connect the second optical drive to the light blue
connector labeled SATA1.
Refer to System Board Connections on page 69 for an illustration of the system board drive
connectors.
9. Replace the front bezel and computer access panel.
10. Reconnect the power cord and any external devices, then turn on the computer.
11. Lock any security devices that were disengaged when the access panel was removed.
Removing a Hard Drive from a Drive Bay
NOTE: Before you remove the old hard drive, be sure to back up the data from the old hard drive so
that you can transfer the data to the new hard drive.
1. Prepare the computer for disassembly (Preparation for Disassembly on page 54)
2. Remove the access panel (Computer Access Panel on page 55)
3. Disconnect the power cable and data cable from the back of the hard drive.
4. Release the drive by pulling the release tab away from the drive (1) and sliding the drive out of
the bay (2).
Figure 6-22 Removing a Hard Drive
5. Remove the four guide screws (two on each side) from the old drive. You will need these screws to
install a new drive.
Drives 77
Installing a Hard Drive into an Internal Drive Bay
NOTE: The system does not support Parallel ATA (PATA) hard drives.
1. Prepare the computer for disassembly (Preparation for Disassembly on page 54)
2. Remove the access panel (Computer Access Panel on page 55)
3. Install guide screws on the sides of the drive. If you are installing a 2.5-inch drive, you must install
the drive in an adapter bracket.
NOTE: The hard drive uses 6-32 isolation mounting guide screws. Four extra guide screws are
installed on the exterior of the hard drive bays. The HP-supplied isolation mounting guide screws
are silver and blue. Refer to Drives on page 70 for an illustration of the extra 6-32 isolation
mounting guide screws location.
If you are replacing a drive, transfer the guides screws from the old drive to the new one.
●If you are installing a 3.5-inch hard drive, install four isolation mounting guide screws (two
on each side of the drive).
Figure 6-23 Installing Isolation Mounting Guide Screws in a 3.5-inch Drive
●If you are installing a 2.5-inch hard drive:
◦Slide the drive into the bay adapter bracket, ensuring the connector on the drive is fully
inserted into the connector on the adapter bracket.
Figure 6-24 Sliding the 2.5-inch Drive in the Adapter Bracket
78 Chapter 6 Removal and Replacement Procedures Microtower (MT) Chassis
◦Secure the drive to the bay adapter bracket by installing four black M3 adapter bracket
screws through the sides of the bracket into the drive.
Figure 6-25 Securing the Drive in the Adapter Bracket
◦Install four 6-32 silver and blue isolation mounting guide screws in the adapter bracket
(two on each side of the bracket).
Figure 6-26 Installing Isolation Mounting Guide Screws in the Adapter Bracket
Drives 79
4. Slide the drive into the drive bay, making sure to align the guide screws with the guide slots, until
the drive snaps into place. The bottom bay is for the primary hard drive. The upper bay is for an
optional secondary hard drive.
Figure 6-27 Sliding a Hard Drive into the Drive Bay
5. Connect the power cable and data cable to the back of the hard drive.
NOTE: The power cable for the hard drives is a two-headed cable that is routed from the system
board to the rear of the hard drive bays.
6. If installing a new drive, connect the opposite end of the data cable to the appropriate system
board connector.
NOTE: If your system has only one SATA hard drive, you must connect the hard drive data
cable to the dark blue connector labeled SATA0 to avoid any hard drive performance problems. If
you are adding a second hard drive, connect the data cable to the light blue connector labeled
SATA1.
7. Route the power and data cables in their cable retainers.
8. Replace the computer access panel.
9. Reconnect the power cord and any external devices, then turn on the computer.
10. Lock any security devices that were disengaged when the access panel was removed.
Removing and Replacing a Removable 3.5-inch SATA Hard Drive
Some models are equipped with a Removable SATA Hard Drive Enclosure in the 5.25-inch internal
drive bay. The hard drive is housed in a carrier that can be quickly and easily removed from the drive
bay. To remove and replace a drive in the carrier:
NOTE: Before you remove the old hard drive, be sure to back up the data from the old hard drive so
that you can transfer the data to the new hard drive.
1. Unlock the hard drive carrier with the key provided and slide the carrier out of the enclosure.
80 Chapter 6 Removal and Replacement Procedures Microtower (MT) Chassis
2. Remove the screw from the rear of the carrier (1) and slide the top cover off the carrier (2).
Figure 6-28 Removing the Carrier Cover
3. Remove the adhesive strip that secures the thermal sensor to the top of the hard drive (1) and
move the thermal sensor away from the carrier (2).
Figure 6-29 Removing the Thermal Sensor
Drives 81
4. Remove the four screws from the bottom of the hard drive carrier.
Figure 6-30 Removing the Security Screws
5. Slide the hard drive back to disconnect it from the carrier then lift it up and out of the carrier.
Figure 6-31 Removing the Hard Drive
82 Chapter 6 Removal and Replacement Procedures Microtower (MT) Chassis
6. Place the new hard drive in the carrier then slide the hard drive back so that it seats in the SATA
connector on the carrier's circuit board. Be sure the connector on the hard drive is pressed all the
way into the connector on the carrier's circuit board.
Figure 6-32 Replacing the Hard Drive
7. Replace the four screws in the bottom of the carrier to hold the drive securely in place.
Figure 6-33 Replacing the Security Screws
Drives 83
8. Place the thermal sensor on top of the hard drive in a position that does not cover the label (1)
and attach the thermal sensor to the top of the hard drive with the adhesive strip (2).
Figure 6-34 Replacing the Thermal Sensor
9. Slide the cover on the carrier (1) and replace the screw on the rear of the carrier to secure the
cover in place (2).
Figure 6-35 Replacing the Carrier Cover
10. Slide the hard drive carrier into the enclosure on the computer and lock it with the key provided.
NOTE: The carrier must be locked for power to be supplied to the hard drive.
84 Chapter 6 Removal and Replacement Procedures Microtower (MT) Chassis
Front Fan Assembly
Description Spare part number
Front fan assembly 585884-001
1. Prepare the computer for disassembly (Preparation for Disassembly on page 54).
2. Remove the access panel (Computer Access Panel on page 55).
3. Remove the cables from the clip on the top of the fan assembly.
Figure 6-36 Removing the cables from atop the front fan assembly
4. Unplug the fan cable from the system board connector labeled CHFAN.
Front Fan Assembly 85
5. Press the lever that secures the assembly to the chassis (1), pivot the assembly forward toward the
front of the computer (2), and then lift the assembly straight up and out of the computer (3).
Figure 6-37 Removing the front fan assembly
To reinstall the front fan, reverse the removal procedure.
Front I/O Assembly
Description Spare part number
Front I/O assembly 646827-001
1. Prepare the computer for disassembly (Preparation for Disassembly on page 54).
2. Remove the computer access panel (Computer Access Panel on page 55).
3. Remove the front bezel (Front Bezel on page 56).
4. Remove the front fan (Front Fan Assembly on page 85).
5. Disconnect the three front I/O cables (yellow, green, and blue) from the system board connectors
(FRONT USB, FRONT USB2, and FRONT AUD).
86 Chapter 6 Removal and Replacement Procedures Microtower (MT) Chassis
6. Remove the Torx T15 screw that secures the assembly to the chassis.
Figure 6-38 Removing the front I/O assembly screw
7. Rotate the left side of the assembly to the right .
Figure 6-39 Removing the front I/O assembly
8. Pull the assembly away from the computer while threading the wires through the hole in the front
of the chassis.
To reinstall the assembly, reverse the removal procedure.
Power Switch/LED Assembly
Description Spare part number
Power switch/LED assembly 646828-001
1. Prepare the computer for disassembly (Preparation for Disassembly on page 54).
2. Remove the access panel (Computer Access Panel on page 55).
3. Remove the front bezel (Front Bezel on page 56).
4. Remove the front fan (Front Fan Assembly on page 85).
5. Disconnect the cable from the system board connector labeled PB/LED.
Power Switch/LED Assembly 87
6. With the computer on its side, press on the tabs on the bottom of the assembly (1) to disengage
the assembly from the chassis, and then rotate the bottom of the assembly upward (2) to remove it
from the chassis.
Figure 6-40 Removing the power switch/LED
7. Pull the assembly away from the chassis while threading the cable through the hole in front of the
chassis.
88 Chapter 6 Removal and Replacement Procedures Microtower (MT) Chassis
Heat sink
Description Spare part number
Heat sink 645326-001
CAUTION: The bond between the heat sink and the processor may be very tight.
If the computer will power on, before removing the heat sink, turn on the computer until it warms the
heat sink. Warming the heat sink lessens the bond between the heat sink and the processor, thereby
making separating them easier.
Make sure not to pull the processor out of the socket when you lift the heat sink, especially if you cannot
warm the heat sink prior to removal. Inadvertently removing the processor can damage the pins.
1. Prepare the computer for disassembly (Preparation for Disassembly on page 54).
2. Remove the computer access panel (Computer Access Panel on page 55).
3. Remove the front fan (Front Fan Assembly on page 85).
4. Loosen the four silver captive Torx T15 screws that secure the heat sink to the system board.
CAUTION: Remove heat sink retaining screws in diagonally opposite pairs (as in an X) to even
the downward forces on the processor. The pins on the socket are very fragile and any damage to
them may require replacing the system board.
Heat sink 89
5. Lift the heat sink from atop the processor.
When reinstalling the heat sink, make sure that its bottom has been cleaned with an alcohol wipe and
fresh thermal grease has been applied to the top of the processor.
CAUTION: Heat sink retaining screws should be tightened in diagonally opposite pairs (as in an X)
to evenly seat the heat sink on the processor. This is especially important as the pins on the socket are
very fragile and any damage to them may require replacing the system board.
Processor
Description Spare part number
AMD A10-5800B, 3.8 GHz, 4-MB L2 cache (100-W), HD 7660D 703598-001
AMD A8-5500B, 3.2 GHz, 4-MB L2 cache (65-W), HD 7560D 703601-001
AMD A6-5400B, 3.6 GHz, 4-MB L2 cache (65-W), HD 7540D 703600-001
AMD A4-5300B, 3.4 GHz, 4-MB L2 cache (65-W), HD 7480D 703599-001
1. Prepare the computer for disassembly (Preparation for Disassembly on page 54).
2. Remove the access panel (Computer Access Panel on page 55).
3. Remove the heat sink (Heat sink on page 89).
4. Rotate the locking lever to its full open position (1).
90 Chapter 6 Removal and Replacement Procedures Microtower (MT) Chassis
5. Carefully lift the processor from the socket (2).
CAUTION: Do NOT handle the pins in the processor socket. These pins are very fragile and
handling them could cause irreparable damage. Once pins are damaged it may be necessary to
replace the system board.
The heat sink must be installed within 24 hours of installing the processor to prevent damage to
the processor’s solder connections.
Reverse the removal procedure to install a new processor.
NOTE: After installing a new processor onto the system board, update the system ROM to ensure that
the latest version of the BIOS is being used on the computer. The latest system BIOS can be found on
the Web at: http://h18000.www1.hp.com/support/files.
Speaker
Description Spare part number
Speaker 645330-001
1. Prepare the computer for disassembly (Preparation for Disassembly on page 54).
2. Remove the access panel (Computer Access Panel on page 55).
3. Remove the front fan assembly (Front Fan Assembly on page 85).
4. Disconnect the speaker wire from the system board connector labeled SPKR.
5. From the inside of the chassis, remove the two silver Torx T15 screws (1) that secure the speaker
to the chassis.
Speaker 91
6. Rotate the top of the speaker downward (2), and then remove it from the chassis.
Figure 6-41 Removing the speaker
To replace the speaker, reverse the removal procedures.
92 Chapter 6 Removal and Replacement Procedures Microtower (MT) Chassis
Rear Chassis Fan
Description Spare part number
Rear chassis fan 643908-001
1. Prepare the computer for disassembly (Preparation for Disassembly on page 54).
2. Remove the access panel (Computer Access Panel on page 55).
3. Remove the four silver Phillips screws that secure the fan to the chassis.
Figure 6-42 Rear fan screws
4. Disconnect the fan control cable (1) from the system board connector labeled CHFAN2.
Rear Chassis Fan 93
5. Lift the fan out of the chassis (2).
Figure 6-43 Removing the rear fan
To install the fan assembly, reverse the removal procedure. Be sure to orient the air flow out of the unit.
94 Chapter 6 Removal and Replacement Procedures Microtower (MT) Chassis
Power Supply
Description Spare part number
Power supply, 320W, 90% efficient 613764-001
Power supply, 320W 613765-001
1. Prepare the computer for disassembly (Preparation for Disassembly on page 54).
2. Remove the access panel (Computer Access Panel on page 55).
3. Disconnect the power cables from the white system board connector labeled PWR and the white
system board connector labeled PWRCMD.
4. Remove the power cables from the clip on the base pan.
5. Remove the four silver Torx T15 screws that connect the power supply to the chassis.
Figure 6-44 Power supply screws
6. Press the tab (1) on the base pan in front of the power supply that holds it in place.
Power Supply 95
7. Slide the power supply toward the front of the computer (2), rotate toward the fan so the power
supply clears the lip on the top of the chassis, and then lift the power supply out of the chassis (3).
Figure 6-45 Removing the power supply
To install the power supply, reverse the removal procedure.
System Board
Description Spare part number
System board for use in Windows 7 models (includes thermal material) 703596-001
System board for use in Windows 8 Standard models 703596-501
System board for use in Windows 8 Professional models 703596-601
1. Prepare the computer for disassembly (Preparation for Disassembly on page 54).
2. Remove the access panel (Computer Access Panel on page 55).
3. Remove the front fan assembly (Front Fan Assembly on page 85).
4. When replacing the system board, make sure the following components are removed from the
defective system board and installed on the replacement system board:
●Memory modules (Memory on page 60)
●Expansion cards (Expansion Cards on page 64)
●Heat sink (Heat sink on page 89).
96 Chapter 6 Removal and Replacement Procedures Microtower (MT) Chassis
●Processor (Processor on page 90)
●WLAN module (WLAN module on page 67)
5. Disconnect all cables connected to the system board, noting their location for reinstallation.
6. Remove the eight Torx T15 screws that secure the system board to the chassis.
Figure 6-46 System board screws
7. Slide the system board toward the front of the computer to disengage the I/O panel, lift the rear of
the system board up at an angle, and then lift the system board out of the computer.
Figure 6-47 Removing the system board
System Board 97
When reinstalling the system board, first insert the I/O panel back into the slots in the rear of the
chassis, and then align the board with the chassis screw holes.
NOTE: When replacing the system board, you must change the chassis serial number in the BIOS.
98 Chapter 6 Removal and Replacement Procedures Microtower (MT) Chassis
7 Removal and Replacement
Procedures Small Form Factor (SFF)
Chassis
Adherence to the procedures and precautions described in this chapter is essential for proper service.
After completing all necessary removal and replacement procedures, run the Diagnostics utility to verify
that all components operate properly.
NOTE: Not all features listed in this guide are available on all computers.
Preparation for Disassembly
See Routine Care, SATA Drive Guidelines, and Disassembly Preparation on page 45 for initial safety
procedures.
1. Remove/disengage any security devices that prohibit opening the computer.
2. Close any open software applications.
3. Exit the operating system.
4. Remove any compact disc or media card from the computer.
5. Turn off the computer and any peripheral devices that are connected to it.
CAUTION: Turn off the computer before disconnecting any cables.
Regardless of the power-on state, voltage is always present on the system board as long as the
system is plugged into an active AC outlet. In some systems the cooling fan is on even when the
computer is in the “Standby,” or “Suspend” modes. The power cord should always be
disconnected before servicing a unit.
6. Disconnect the power cord from the electrical outlet and then from the computer.
7. Disconnect all peripheral device cables from the computer.
NOTE: During disassembly, label each cable as you remove it, noting its position and routing.
Keep all screws with the units removed.
CAUTION: The screws used in the computer are of different thread sizes and lengths; using the
wrong screw in an application may damage the unit.
Preparation for Disassembly 99
Access Panel
Description Spare part number
Access panel 646815-001
1. Prepare the computer for disassembly (Preparation for Disassembly on page 99).
2. If the computer is on a stand, remove the computer from the stand.
3. Lift up on the access panel handle (1) then lift the access panel off the computer (2).
Figure 7-1 Removing the access panel
To install the access panel, reverse the removal procedure.
100 Chapter 7 Removal and Replacement Procedures Small Form Factor (SFF) Chassis
Front Bezel
Description Spare part number
Front bezel 687950-001
1. Prepare the computer for disassembly (Preparation for Disassembly on page 99).
2. Remove the access panel (Access Panel on page 100).
3. Lift up the three tabs on the side of the bezel (1), then rotate the bezel off the chassis (2).
Figure 7-2 Removing the front bezel
To install the front bezel, reverse the removal procedure.
Front Bezel 101
Front Bezel Security
The front bezel can be locked in place by installing a security screw provided by HP. To install the
security screw:
1. Remove/disengage any security devices that prohibit opening the computer.
2. Remove all removable media, such as compact discs or USB flash drives, from the computer.
3. Turn off the computer properly through the operating system, then turn off any external devices.
4. Disconnect the power cord from the power outlet and disconnect any external devices.
CAUTION: Regardless of the power-on state, voltage is always present on the system board as
long as the system is plugged into an active AC outlet. You must disconnect the power cord to
avoid damage to the internal components of the computer.
5. If the computer is on a stand, remove the computer from the stand.
6. Remove the access panel and front bezel.
7. Remove one of the five silver 6-32 standard screws located on the front of the chassis behind the
bezel.
Figure 7-3 Retrieving the Front Bezel Security Screw
8. Replace the front bezel.
102 Chapter 7 Removal and Replacement Procedures Small Form Factor (SFF) Chassis
9. Install the security screw next to the middle front bezel release tab to secure the front bezel in
place.
Figure 7-4 Installing the Front Bezel Security Screw
10. Replace the access panel.
11. If the computer was on a stand, replace the stand.
12. Reconnect the power cord and turn on the computer.
13. Lock any security devices that were disengaged when the access panel was removed.
Front Bezel Security 103
Bezel Blanks
Description Spare part number
3.5-inch bezel blank 583653-001
5.25-inch bezel blank, optical drive 570838-001
On some models, there are bezel blanks covering the 3.5-inch and 5.25-inch external drive bays that
need to be removed before installing a drive. To remove a bezel blank:
1. Remove the access panel (Access Panel on page 100).
2. Remove the front bezel (Front Bezel on page 101)..
3. To remove a bezel blank, push the two retaining tabs that hold the bezel blank in place towards
the outer right edge of the bezel (1) and slide the bezel blank back and to the right to remove it
(2).
Figure 7-5 Removing a bezel blank
4. Replace the front bezel.
104 Chapter 7 Removal and Replacement Procedures Small Form Factor (SFF) Chassis
Memory
Description Spare part number
8-GB, PC3-12800 689375-001
4-GB, PC3-12800 671613-001
2-GB, PC3-12800 671612-001
The computer comes with double data rate 3 synchronous dynamic random access memory (DDR3-
SDRAM) dual inline memory modules (DIMMs).
DIMMs
The memory sockets on the system board can be populated with up to four industry-standard DIMMs.
These memory sockets are populated with at least one preinstalled DIMM. To achieve the maximum
memory support, you can populate the system board with up to 32-GB of memory configured in a high-
performing dual channel mode.
DDR3-SDRAM DIMMs
CAUTION: This product DOES NOT support DDR3 Ultra Low Voltage (DDR3U) memory. The
processor is not compatible with DDR3U memory and if you plug DDR3U memory into the system
board, it can cause the physical damage to the DIMM or invoke system malfunction.
For proper system operation, the DDR3-SDRAM DIMMs must be:
●industry-standard 240-pin
●unbuffered non-ECC PC3-PC12800 DDR3-1600 MHz-compliant
●1.35 volt or 1.5 volt DDR3/DDR3L-SDRAM DIMMs
The DDR3-SDRAM DIMMs must also:
●support CAS latency 11 DDR3 1600 MHz (11-11-11 timing)
●contain the mandatory JEDEC SPD information
In addition, the computer supports:
●512-Mbit, 1-Gbit, 2-Gbit, 4-Gbit, and 8-Gbit non-ECC memory technologies
●single-sided and double-sided DIMMs
●DIMMs constructed with x8 and x16 DDR devices; DIMMs constructed with x4 SDRAM are not
supported
NOTE: The system will not operate properly if you install unsupported DIMMs.
Memory 105
Populating DIMM Sockets
There are four DIMM sockets on the system board, with two sockets per channel. The sockets are
labeled DIMM1, DIMM2, DIMM3, and DIMM4. Sockets DIMM1 and DIMM2 operate in memory
channel B. Sockets DIMM3 and DIMM4 operate in memory channel A.
The system will automatically operate in single channel mode, dual channel mode, or flex mode,
depending on how the DIMMs are installed.
NOTE: Single channel and unbalanced dual channel memory configurations will result in inferior
graphics performance.
●The system will operate in single channel mode if the DIMM sockets are populated in one channel
only.
●The system will operate in a higher-performing dual channel mode if the total memory capacity of
the DIMMs in Channel A is equal to the total memory capacity of the DIMMs in Channel B. The
technology and device width can vary between the channels. For example, if Channel A is
populated with two 1-GB DIMMs and Channel B is populated with one 2-GB DIMM, the system
will operate in dual channel mode.
●The system will operate in flex mode if the total memory capacity of the DIMMs in Channel A is
not equal to the total memory capacity of the DIMMs in Channel B. In flex mode, the channel
populated with the least amount of memory describes the total amount of memory assigned to dual
channel and the remainder is assigned to single channel. For optimal speed, the channels should
be balanced so that the largest amount of memory is spread between the two channels. If one
channel will have more memory than the other, the larger amount should be assigned to Channel
A. For example, if you are populating the sockets with one 2-GB DIMM, and three 1-GB DIMMs,
Channel A should be populated with the 2-GB DIMM and one 1-GB DIMM, and Channel B should
be populated with the other two 1-GB DIMMs. With this configuration, 4-GB will run as dual
channel and 1-GB will run as single channel.
●In any mode, the maximum operational speed is determined by the slowest DIMM in the system.
106 Chapter 7 Removal and Replacement Procedures Small Form Factor (SFF) Chassis
Installing DIMMs
CAUTION: You must disconnect the power cord and wait approximately 30 seconds for the power
to drain before adding or removing memory modules. Regardless of the power-on state, voltage is
always supplied to the memory modules as long as the computer is plugged into an active AC outlet.
Adding or removing memory modules while voltage is present may cause irreparable damage to the
memory modules or system board.
The memory module sockets have gold-plated metal contacts. When upgrading the memory, it is
important to use memory modules with gold-plated metal contacts to prevent corrosion and/or
oxidation resulting from having incompatible metals in contact with each other.
Static electricity can damage the electronic components of the computer or optional cards. Before
beginning these procedures, ensure that you are discharged of static electricity by briefly touching a
grounded metal object. For more information, refer to Electrostatic Discharge Information on page 45.
When handling a memory module, be careful not to touch any of the contacts. Doing so may damage
the module.
1. Prepare the computer for disassembly (Preparation for Disassembly on page 99).
2. Remove the access panel (Access Panel on page 100).
3. Rotate up the internal drive bay housing to access the memory module sockets on the system
board.
Memory 107
4. Open both latches of the memory module socket (1), and insert the memory module into the
socket (2).
Figure 7-6 Installing a DIMM
NOTE: A memory module can be installed in only one way. Match the notch on the module with
the tab on the memory socket.
Populate the black DIMM sockets before the white DIMM sockets.
For maximum performance, populate the sockets so that the memory capacity is spread as equally
as possible between Channel A and Channel B. Refer to Populating DIMM Sockets on page 106
for more information.
5. Push the module down into the socket, ensuring that the module is fully inserted and properly
seated. Make sure the latches are in the closed position (3).
6. Repeat steps 4 and 5 to install any additional modules.
7. Replace the access panel.
8. If the computer was on a stand, replace the stand.
9. Reconnect the power cord and turn on the computer.
10. Lock any security devices that were disengaged when the access panel was removed.
The computer should automatically recognize the additional memory the next time you turn on the
computer.
108 Chapter 7 Removal and Replacement Procedures Small Form Factor (SFF) Chassis
Expansion Card
Description Spare part number
AMD HD8490 PCIe x16 graphics card, 1 GB (for use with Windows 8) 717219-001
nVidia Quadro NVS315 PCIe x16 graphics card, 1 GB (for use with Windows 8) 720837-001
GeForce GT630 PCIe x16 graphics card, 2 GB (for use only with Windows 8) 702084-001
nVidia Quadro NVS310 PCIe x16 graphics card, 512 MB (for use only with Windows 8) 707252-001
nVidia Quadro NVS300 PCIe x16 graphics card, 512 MB (for use only with Windows 8) 700578-001
AMD Radeon HD7450 PCIe x16 graphics card, 1 GB (for use only in China) 702646-001
AMD Radeon HD7450 PCIe x16 graphics card, 1 GB (for use only with Windows 8) 702647-001
AMD Radeon HD7450 PCIe x16 graphics card, 1 GB (includes adapter; not for use with Windows
8)
682411-001
AMD Radeon HD6350 PCIe x16 graphics card, 512 MB (for use only with Windows 8) 697246-001
AMD Radeon HD6350 PCIe x16 graphics card, 512 MB (not for use with Windows 8) 637995-001
HP WLAN 802.11 g/n 1x2 PCIe NIC 538048-001
Intel PRO/1000, single port, GbE, NIC 728562-001
HP USB 3.0 SuperSpeed PCIe x1 card 663213-001
HP USB 3.0 SuperSpeed power extension cable (for use with 663213-001) 663214-001
The computer has one PCI expansion slot, one PCI Express x1 expansion slot, one PCI Express x16
expansion slot, and one PCI Express x16 expansion slot that is downshifted to a x4 slot.
NOTE: The PCI and PCI Express slots support only low profile cards.
You can install a PCI Express x1, x4, x8, or x16 expansion card in the PCI Express x16 slot.
For dual graphics card configurations, the first (primary) card must be installed in the PCI Express x16
slot that is NOT downshifted to a x4.
To remove, replace, or add an expansion card:
1. Prepare the computer for disassembly (Preparation for Disassembly on page 99).
2. Remove the access panel (Access Panel on page 100).
3. Locate the correct vacant expansion socket on the system board and the corresponding expansion
slot on the back of the computer chassis.
Expansion Card 109
4. Release the slot cover retention latch that secures the PCI slot covers by lifting the green tab on the
latch and rotating the latch to the open position.
Figure 7-7 Opening the Expansion Slot Retainer
5. Before installing an expansion card, remove the expansion slot cover or the existing expansion
card.
NOTE: Before removing an installed expansion card, disconnect any cables that may be
attached to the expansion card.
a. If you are installing an expansion card in a vacant socket, remove the appropriate expansion
slot cover on the back of the chassis. Pull the slot cover straight up then away from the inside
of the chassis.
Figure 7-8 Removing an Expansion Slot Cover
110 Chapter 7 Removal and Replacement Procedures Small Form Factor (SFF) Chassis
b. If you are removing a standard PCI card or PCI Express x1 card, hold the card at each end,
and carefully rock it back and forth until the connectors pull free from the socket. Pull the
expansion card straight up from the socket (1) then away from the inside of the chassis to
release it from the chassis frame (2). Be sure not to scrape the card against the other
components.
Figure 7-9 Removing a Standard PCI Expansion Card
c. If you are removing a PCI Express x16 card, pull the retention arm on the back of the
expansion socket away from the card and carefully rock the card back and forth until the
connectors pull free from the socket. Pull the expansion card straight up from the socket then
away from the inside of the chassis to release it from the chassis frame. Be sure not to scrape
the card against the other components.
Figure 7-10 Removing a PCI Express x16 Expansion Card
6. Store the removed card in anti-static packaging.
Expansion Card 111
7. If you are not installing a new expansion card, install an expansion slot cover to close the open
slot.
CAUTION: After removing an expansion card, you must replace it with a new card or
expansion slot cover for proper cooling of internal components during operation.
8. To install a new expansion card, hold the card just above the expansion socket on the system
board then move the card toward the rear of the chassis (1) so that the bracket on the card is
aligned with the open slot on the rear of the chassis. Press the card straight down into the
expansion socket on the system board (2).
Figure 7-11 Installing an Expansion Card
NOTE: When installing an expansion card, press firmly on the card so that the whole connector
seats properly in the expansion card slot.
9. Rotate the slot cover retention latch back in place to secure the expansion card.
Figure 7-12 Closing the Expansion Slot Retainer
112 Chapter 7 Removal and Replacement Procedures Small Form Factor (SFF) Chassis
10. Connect external cables to the installed card, if needed. Connect internal cables to the system
board, if needed.
11. Replace the computer access panel.
12. If the computer was on a stand, replace the stand.
13. Reconnect the power cord and turn on the computer.
14. Lock any security devices that were disengaged when the access panel was removed.
15. Reconfigure the computer, if necessary.
WLAN module
Description Spare part number
Intel® Centrino™ Advanced-N 6205, 802.11a/b/g/n WLAN module 695915-001
CAUTION: To prevent an unresponsive system, replace the wireless module only with a wireless
module authorized for use in the computer by the governmental agency that regulates wireless devices
in your country or region. If you replace the module and then receive a warning message, remove the
module to restore device functionality, and then contact technical support.
Before removing the WLAN module, follow these steps:
1. Prepare the computer for disassembly (Preparation for Disassembly on page 54)
2. Remove the access panel (Access Panel on page 100)
Remove the WLAN module:
1. Disconnect the WLAN antenna cables (1) from the terminals on the WLAN module.
NOTE: The WLAN antenna cable labeled “1” connects to the WLAN module “Main” terminal
labeled “1”. The WLAN antenna cable labeled “2” connects to the WLAN module “Aux” terminal
labeled “2”. If the computer is equipped with an 802.11a/b/g/n WLAN module, the yellow
WLAN antenna cable connects to the middle terminal on the WLAN module.
2. Remove the two Phillips PM2.0×3.0 screws (2) that secure the WLAN module to the system
board. (The WLAN module tilts up.)
WLAN module 113
3. Remove the WLAN module (3) by pulling the module away from the slot at an angle.
NOTE: WLAN modules are designed with a notch to prevent incorrect insertion of the WLAN
module into the WLAN module slot.
Reverse this procedure to install the WLAN module.
114 Chapter 7 Removal and Replacement Procedures Small Form Factor (SFF) Chassis
System Board Connections
Refer to the following illustration and table to identify the system board connectors for your model.
Figure 7-13 System Board Connections
Table 7-1 System Board Connections
No. System Board Connector System Board Label Color Component
1 DIMM4 (Channel A) DIMM4 white Memory Module
2 DIMM3 (Channel A) DIMM3 black Memory Module
3 DIMM2 (Channel B) DIMM2 white Memory Module
4 DIMM1 (Channel B) DIMM1 black Memory Module
5 eSATA ESATA black eSATA Adapter Cable
6 SATA 2.0 SATA2 white 1st Optical Drive
7 Power SATAS_PWR2 black (unused)
8 Power SATAS_PWR1 black SATA Optical and Hard Drives
9 SATA 3.0 SATA1 light blue 2nd Hard Drive
10 SATA 3.0 SATA0 dark blue 1st Hard Drive
11 Serial Port COMB black Serial Port
12 Parallel Port PAR black Parallel Port
13 USB MEDIA2 black Second Media Card Reader
14 Hood Lock HLCK black USB Device, such as a Media Card
Reader
15 Hood Sensor HSENSE white Hood Sensor
16 USB MEDIA black USB Device, such as a Media Card
Reader
System Board Connections 115
Table 7-1 System Board Connections (continued)
No. System Board Connector System Board Label Color Component
17 PCI Express x1 X1PCIEXP1 black Expansion Card
18 PCI Express x16 downshifted
to a x4
X4PCIEXP white Expansion Card
19 PCI Express x16 X16PCIEXP black Expansion Card
20 PCI PCI1 white Expansion Card
Drives
Description Spare part number
DVD±RW drive 660408-001
690418-001
DVD-ROM drive 682550-001
Blu-ray BD-Writer XL Drive 682219-001
1 TB hybrid hard drive (8-GB SSD) 724937-001
1 TB, 7200 rpm SATA hard drive 636930-001
500 GB hybrid hard drive (8-GB SSD) 724938-001
500 GB, 7200 rpm, 2.5 inch, SED, SATA hard drive 696442-001
500 GB, 7200 rpm SATA hard drive 636929-001
320 GB, 7200 rpm SATA hard drive, 2.5-inch 634824-001
250 GB, 7200 rpm SATA hard drive 636927-001
256 GB Solid State Drive (SSD), self-encrypting (SED) 680020-001
160 GB Solid State Drive (SSD) 646809-001
128 GB Solid State Drive (SSD) 665961-001
120 GB Solid State Drive (SSD) 661841-001
116 Chapter 7 Removal and Replacement Procedures Small Form Factor (SFF) Chassis
Drive Positions
Figure 7-14 Drive Positions
Table 7-2 Drive Positions
1 3.5-inch internal hard drive bay
2 3.5-inch drive bay for optional drives (media card reader shown)
3 5.25-inch drive bay for optional drives (optical drive shown)
NOTE: The drive configuration on your computer may be different than the drive
configuration shown above.
To verify the type and size of the storage devices installed in the computer, run Computer Setup.
Installing and Removing Drives
When installing drives, follow these guidelines:
●The primary Serial ATA (SATA) hard drive must be connected to the dark blue primary SATA
connector on the system board labeled SATA0. If you are adding a second hard drive, connect it
to the light blue connector on the system board labeled SATA1.
●Connect a SATA optical drive to the white SATA connector on the system board labeled SATA2.
●Connect an optional eSATA adapter cable to the black SATA connector on the system board
labeled ESATA.
●Connect a media card reader USB cable to the USB connector on the system board labeled
MEDIA.
●The power cable for the SATA drives is a three-headed cable that is plugged into the system board
with the first connector routed to the rear of the hard drive, the second connector routed to the rear
of the 3.5” drive, and the third connector routed to the rear of the 5.25” optical drive.
●The system does not support Parallel ATA (PATA) optical drives or PATA hard drives.
●You must install guide screws to ensure the drive will line up correctly in the drive cage and lock in
place. HP has provided extra guide screws for the drive bays (five 6-32 standard screws and four
M3 metric screws), installed in the front of the chassis, under the front bezel. The 6-32 standard
screws are required for a secondary hard drive. All other drives (except the primary hard drive)
Drives 117
use M3 metric screws. The HP-supplied metric screws are black and the HP-supplied standard
screws are silver. If you are replacing the primary hard drive, you must remove the four silver and
blue 6-32 isolation mounting guide screws from the old hard drive and install them in the new
hard drive.
Figure 7-15 Extra Guide Screw Locations
No. Guide Screw Device
1 Black M3 Metric Screws All Drives (except primary and secondary hard drives)
2 Silver 6-32 Standard Screws Secondary Hard Drive
There are at total of five extra silver 6-32 standard screws. Four are used as guide screws for a secondary
hard drive. The fifth is used for bezel security (see Front Bezel Security on page 102 for more information).
CAUTION: To prevent loss of work and damage to the computer or drive:
If you are inserting or removing a drive, shut down the operating system properly, turn off the
computer, and unplug the power cord. Do not remove a drive while the computer is on or in standby
mode.
Before handling a drive, ensure that you are discharged of static electricity. While handling a drive,
avoid touching the connector.
Handle a drive carefully; do not drop it.
Do not use excessive force when inserting a drive.
Avoid exposing a hard drive to liquids, temperature extremes, or products that have magnetic fields
such as monitors or speakers.
If a drive must be mailed, place the drive in a bubble-pack mailer or other protective packaging and
label the package “Fragile: Handle With Care.”
118 Chapter 7 Removal and Replacement Procedures Small Form Factor (SFF) Chassis
Removing a 5.25-inch Drive from a Drive Bay
CAUTION: All removable media should be taken out of a drive before removing the drive from the
computer.
1. Prepare the computer for disassembly (Preparation for Disassembly on page 99).
2. Remove the access panel (Access Panel on page 100).
3. Rotate the drive cage to its upright position.
4. If removing an optical drive, disconnect the power cable and data cable from the rear of the
optical drive.
CAUTION: When removing the cables, pull the tab or connector instead of the cable itself to
avoid damaging the cable.
5. Rotate the drive cage back down to its normal position.
CAUTION: Be careful not to pinch any cables or wires when rotating the drive cage down.
6. Press down on the green drive retainer button located on the left side of the drive to disengage the
drive from the drive cage (1). While pressing the drive retainer button, slide the drive back until it
stops, then lift it up and out of the drive cage (2).
Figure 7-16 Removing the 5.25-inch Drive
Installing a 5.25-inch Drive into a Drive Bay
1. Prepare the computer for disassembly (Preparation for Disassembly on page 99).
2. Remove the access panel (Access Panel on page 100).
3. If you are installing a drive in a bay covered by a bezel blank, remove the front bezel then
remove the bezel blank. See Bezel Blanks on page 104 for more information.
Drives 119
4. Install four M3 metric guide screws in the lower holes on each side of the drive. HP has provided
four extra M3 metric guide screws on the front of the chassis, under the front bezel. The M3 metric
guide screws are black. Refer to Installing and Removing Drives on page 117 for an illustration of
the extra M3 metric guide screws location.
NOTE: When replacing the drive, transfer the four M3 metric guide screws from the old drive to
the new one.
CAUTION: Use only 5-mm long screws as guide screws. Longer screws can damage the
internal components of the drive.
Figure 7-17 Installing Guide Screws in the Optical Drive
5. Position the guide screws on the drive into the J-slots in the drive bay. Then slide the drive toward
the front of the computer until it locks into place.
Figure 7-18 Installing the Optical Drive
6. Rotate the drive cage to its upright position.
7. Connect the SATA data cable to the white SATA system board connector labeled SATA2.
8. Route the data cable through the cable guides.
CAUTION: There are two cable guides that keep the data cable from being pinched by the
drive cage when raising or lowering it. One is located on the bottom side of the drive cage. The
other is located on the chassis frame under the drive cage. Ensure that the data cable is routed
through these guides before connecting it to the optical drive.
120 Chapter 7 Removal and Replacement Procedures Small Form Factor (SFF) Chassis
9. Connect the power cable and data cable to the rear of the optical drive.
NOTE: The power cable for the optical drive is a three-headed cable that is routed from the
system board to the hard drive, then to the rear of the optical drive.
10. Rotate the drive cage back down to its normal position.
CAUTION: Be careful not to pinch any cables or wires when rotating the drive cage down.
11. Replace the front bezel (if removed) and access panel.
12. If the computer was on a stand, replace the stand.
13. Reconnect the power cord and turn on the computer.
14. Lock any security devices that were disengaged when the access panel was removed.
Removing a 3.5-inch Drive from a Drive Bay
CAUTION: All removable media should be taken out of a drive before removing the drive from the
computer.
The 3.5-inch drive is located underneath the 5.25-inch drive. You must remove the 5.25-inch drive
before removing the 3.5-inch drive.
1. Follow the procedure in Removing a 5.25-inch Drive from a Drive Bay on page 119 to remove the
5.25-inch drive and access the 3.5-inch drive.
CAUTION: Ensure that the computer is turned off and that the power cord is disconnected from
the electrical outlet before proceeding.
2. Disconnect the drive cables from the rear of the drive, or, if you are removing a media card
reader, disconnect the USB cable from the system board as indicated in the following illustration.
Figure 7-19 Disconnecting the Media Card Reader USB Cable
Drives 121
3. Press down on the green drive retainer button located on the left side of the drive to disengage the
drive from the drive cage (1). While pressing the drive retainer button, slide the drive back until it
stops, then lift it up and out of the drive cage (2).
Figure 7-20 Removing a 3.5-inch Drive (Media Card Reader Shown)
122 Chapter 7 Removal and Replacement Procedures Small Form Factor (SFF) Chassis
Installing a 3.5-inch Drive into a Drive Bay
The 3.5-inch bay is located underneath the 5.25-inch drive. To install a drive into the 3.5-inch bay:
NOTE: Install guide screws to ensure the drive will line up correctly in the drive cage and lock in
place. HP has provided extra guide screws for the drive bays (four 6-32 standard screws and four M3
metric screws), installed in the front of the chassis, under the front bezel. A secondary hard drive uses
6-32 standard screws. All other drives (except the primary hard drive) use M3 metric screws. The HP-
supplied M3 metric screws are black and the HP-supplied 6-32 standard screws are silver. Refer to
Installing and Removing Drives on page 117 for illustrations of the guide screw locations.
1. Follow the procedure in Removing a 5.25-inch Drive from a Drive Bay on page 119 to remove the
5.25-inch drive and access the 3.5-inch drive bay.
CAUTION: Ensure that the computer is turned off and that the power cord is disconnected from
the electrical outlet before proceeding.
2. If you are installing a drive in a bay covered by a bezel blank, remove the front bezel then
remove the bezel blank. See Bezel Blanks on page 104 for more information.
3. Install guide screws in the holes on each side of the drive.
Figure 7-21 Installing Guide Screws (Media Card Reader Shown)
4. Position the guide screws on the drive into the J-slots in the drive bay. Then slide the drive toward
the front of the computer until it locks into place.
Figure 7-22 Installing a Drive into the 3.5-inch Drive Bay (Media Card Reader Shown)
Drives 123
5. Connect the appropriate drive cables:
a. If installing a second hard drive, connect the power cable (1) and data cable (2) to the rear
of the drive and connect the other end of the data cable to the light blue connector on the
system board labeled SATA1.
Figure 7-23 Connecting the Secondary Hard Drive Power Cable and Data Cable
b. If installing a media card reader, connect the USB cable from the media card reader to the
USB connector on the system board labeled MEDIA.
Figure 7-24 Connecting the Media Card Reader USB Cable
NOTE: Refer to System Board Connections on page 115 for an illustration of the system
board drive connectors.
6. Replace the 5.25-inch drive.
7. Replace the front bezel (if removed) and access panel.
8. If the computer was on a stand, replace the stand.
124 Chapter 7 Removal and Replacement Procedures Small Form Factor (SFF) Chassis
9. Reconnect the power cord and turn on the computer.
10. Lock any security devices that were disengaged when the access panel was removed.
Removing and Replacing the Primary 3.5-inch Internal Hard Drive
NOTE: Before you remove the old hard drive, be sure to back up the data from the old hard drive so
that you can transfer the data to the new hard drive.
The preinstalled 3.5-inch hard drive is located under the power supply. To remove and replace the
hard drive:
1. Prepare the computer for disassembly (Preparation for Disassembly on page 99).
2. Remove the access panel (Access Panel on page 100).
3. Rotate the drive cage for internal drives to its upright position.
4. Rotate the power supply to its upright position. The hard drive is located beneath the power
supply.
Figure 7-25 Raising the Power Supply
5. Disconnect the power cable and data cable from the back of the hard drive.
Drives 125
6. Press down on the green release latch next to the hard drive (1). While holding the latch down,
slide the drive forward until it stops, then lift the drive up and out of the bay (2).
Figure 7-26 Removing the Hard Drive
7. To install a hard drive, you must transfer the silver and blue isolation mounting guide screws from
the old hard drive to the new hard drive.
Figure 7-27 Installing Hard Drive Guide Screws
126 Chapter 7 Removal and Replacement Procedures Small Form Factor (SFF) Chassis
8. Align the guide screws with the slots on the chassis drive cage, press the hard drive down into the
bay, then slide it back until it stops and locks in place.
Figure 7-28 Installing the Hard Drive
9. Connect the power cable and data cable to the back of the hard drive.
NOTE: If the system has only one SATA hard drive, the data cable must be connected to the
dark blue connector labeled SATA0 on the system board to avoid any hard drive performance
problems.
10. Rotate the drive cage for internal drives and the power supply down to their normal positions.
11. Replace the access panel.
12. If the computer was on a stand, replace the stand.
13. Reconnect the power cord and turn on the computer.
14. Lock any security devices that were disengaged when the access panel was removed.
Removing and Replacing a Removable 3.5-inch SATA Hard Drive
Some models are equipped with a Removable SATA Hard Drive Enclosure in the 5.25-inch internal
drive bay. The hard drive is housed in a carrier that can be quickly and easily removed from the drive
bay. To remove and replace a drive in the carrier:
NOTE: Before you remove the old hard drive, be sure to back up the data from the old hard drive so
that you can transfer the data to the new hard drive.
1. Unlock the hard drive carrier with the key provided and slide the carrier out of the enclosure.
Drives 127
2. Remove the screw from the rear of the carrier (1) and slide the top cover off the carrier (2).
Figure 7-29 Removing the Carrier Cover
3. Remove the adhesive strip that secures the thermal sensor to the top of the hard drive (1) and
move the thermal sensor away from the carrier (2).
Figure 7-30 Removing the Thermal Sensor
128 Chapter 7 Removal and Replacement Procedures Small Form Factor (SFF) Chassis
4. Remove the four screws from the bottom of the hard drive carrier.
Figure 7-31 Removing the Security Screws
5. Slide the hard drive back to disconnect it from the carrier then lift it up and out of the carrier.
Figure 7-32 Removing the Hard Drive
Drives 129
6. Place the new hard drive in the carrier then slide the hard drive back so that it seats in the SATA
connector on the carrier's circuit board. Be sure the connector on the hard drive is pressed all the
way into the connector on the carrier's circuit board.
Figure 7-33 Replacing the Hard Drive
7. Replace the four screws in the bottom of the carrier to hold the drive securely in place.
Figure 7-34 Replacing the Security Screws
130 Chapter 7 Removal and Replacement Procedures Small Form Factor (SFF) Chassis
8. Place the thermal sensor on top of the hard drive in a position that does not cover the label (1)
and attach the thermal sensor to the top of the hard drive with the adhesive strip (2).
Figure 7-35 Replacing the Thermal Sensor
9. Slide the cover on the carrier (1) and replace the screw on the rear of the carrier to secure the
cover in place (2).
Figure 7-36 Replacing the Carrier Cover
10. Slide the hard drive carrier into the enclosure on the computer and lock it with the key provided.
NOTE: The carrier must be locked for power to be supplied to the hard drive.
Drives 131
Fan duct
Description Spare part number
Fan duct 636921-001
The fan duct sits between the front fan and the heat sink.
1. Prepare the computer for disassembly (Preparation for Disassembly on page 99).
2. Remove the access panel (Access Panel on page 100).
3. Remove the cables from the hook on the duct (1).
4. Lift the fan duct straight up out of the chassis (2).
Figure 7-37 Removing the fan duct
To install the fan duct, reverse the removal procedure.
132 Chapter 7 Removal and Replacement Procedures Small Form Factor (SFF) Chassis
Front Fan Assembly
Description Spare part number
Front fan 645327-001
The front fan assembly is attached to the front of the chassis.
1. Prepare the computer for disassembly (Preparation for Disassembly on page 99).
2. Remove the access panel (Access Panel on page 100).
3. Remove the front bezel (Front Bezel on page 101).
4. Remove the baffle (Fan duct on page 132).
5. Disconnect the fan cable from the red/brown system board connector labeled CHFAN.
Figure 7-38 Disconnecting the front fan cable
6. Press the tabs that secure the fan assembly to the front of the chassis (1).
Front Fan Assembly 133
7. Pull the assembly toward the rear of the unit (2), and then lift it out of the chassis.
Figure 7-39 Removing the front fan
To install the front fan, reverse the removal procedure. Be sure to orient the air flow into the unit.
134 Chapter 7 Removal and Replacement Procedures Small Form Factor (SFF) Chassis
Hood Sensor
Description Spare part number
Hood sensor 638816-001
The hood sensor is attached in a slot in the rear of the chassis.
1. Prepare the computer for disassembly (Preparation for Disassembly on page 99).
2. Remove the access panel (Access Panel on page 100).
3. Unplug the sensor cable from the system board connector labeled HSENSE (1).
4. Slide the hood sensor straight out of the notch in the chassis (2).
NOTE: A flat blade screwdriver can be used to push the hood sensor out of the slot.
Figure 7-40 Removing the hood sensor from the chassis fan
To install the hood sensor, reverse the removal procedure.
Hood Sensor 135
Front I/O, Power Switch Assembly
Description Spare part number
Front I/O and power switch assembly 636926-001
The front I/O and power switch/LEDs is one assembly, attached to the front of the chassis. Push the
assembly into the chassis to remove.
1. Prepare the computer for disassembly (Preparation for Disassembly on page 99).
2. Remove the access panel (Access Panel on page 100).
3. Remove the front bezel (Front Bezel on page 101).
4. Remove the chassis fan (Front Fan Assembly on page 133).
5. Rotate the drive cage to its upright position.
6. Disconnect the four cables from the system board as follows:
●Yellow connector labeled FRONT_USB
●Green connector labeled FRONT_USB2
●Blue connector labeled FRONT AUD
●Black connector labeled PB/LED
Figure 7-41 Disconnecting the front I/O, power switch/LED assembly cables
7. Remove the Torx T15 screw (1) that secures the assembly to the front of the chassis.
136 Chapter 7 Removal and Replacement Procedures Small Form Factor (SFF) Chassis
8. Route the cables through the slots beneath the drive cage, rotate the assembly into the chassis (2),
and then remove the assembly from the computer.
Figure 7-42 Removing the front I/O, power switch/LED assembly screw
To install the front I/O and power switch assembly, reverse the removal procedure.
NOTE: Be sure to correctly route the cables beneath the drive cage when reinstalling the assembly.
Proper cable routing prevents damage to the cables and allows the drive cage to close properly.
Front I/O, Power Switch Assembly 137
Speaker
Description Spare part number
Speaker 636925-001
The speaker is attached to the front of the chassis under the rotating drive cage.
1. Prepare the computer for disassembly (Preparation for Disassembly on page 99).
2. Remove the access panel (Access Panel on page 100).
3. Remove the front bezel (Front Bezel on page 101).
4. Rotate the drive cage to its upright position.
5. Disconnect the speaker wire from the white system board labeled SPKR (1).
6. Remove the Torx screw that secures the speaker to the chassis (2).
7. Lift the speaker from the inside of the chassis to remove it (3).
Figure 7-43 Removing the speaker
To install the speaker, reverse the removal procedures.
138 Chapter 7 Removal and Replacement Procedures Small Form Factor (SFF) Chassis
Heat sink
Description Spare part number
Heat sink 645326-001
CAUTION: The bond between the heat sink and the processor may be very tight.
If the computer will power on, before removing the heat sink, turn on the computer until it warms the
heat sink. Warming the heat sink lessens the bond between the heat sink and the processor, thereby
making separating them easier.
Make sure not to pull the processor out of the socket when you lift the heat sink, especially if you cannot
warm the heat sink prior to removal. Inadvertently removing the processor can damage the pins.
The heat sink is secured atop the processor with four captive Torx screws. The heat sink does not
include a fan.
1. Prepare the computer for disassembly (Preparation for Disassembly on page 99).
2. Remove the access panel (Access Panel on page 100).
3. Remove the fan duct (Fan duct on page 132).
4. Remove the front fan (Front Fan Assembly on page 133).
5. Loosen the four captive screws that secure the heat sink to the system board tray.
CAUTION: Heat sink retaining screws should be removed in diagonally opposite pairs (as in an
X) to even the downward forces on the processor. This is especially important as the pins on the
socket are very fragile and any damage to them may require replacing the system board.
Figure 7-44 Loosening the heat sink screws
Heat sink 139
6. Lift the heat sink from atop the processor and set it on its side to keep from contaminating the work
area with thermal grease.
Figure 7-45 Removing the heat sink
When reinstalling the heat sink, make sure that its bottom has been cleaned with an alcohol wipe and
fresh thermal grease has been applied to the top of the processor.
CAUTION: Heat sink retaining screws should be tightened in diagonally opposite pairs (as in an X)
to evenly seat the heat sink on the processor to avoid damage that could require replacing the system
board.
Failure to install the fan duct may cause the computer to overheat.
140 Chapter 7 Removal and Replacement Procedures Small Form Factor (SFF) Chassis
Processor
Description Spare part number
AMD A10-5800B, 3.8 GHz, 4-MB L2 cache (100-W), HD 7660D 703598-001
AMD A8-5500B, 3.2 GHz, 4-MB L2 cache (65-W), HD 7560D 703601-001
AMD A6-5400B, 3.6 GHz, 4-MB L2 cache (65-W), HD 7540D 703600-001
AMD A4-5300B, 3.4 GHz, 4-MB L2 cache (65-W), HD 7480D 703599-001
1. Prepare the computer for disassembly (Preparation for Disassembly on page 99).
2. Remove the access panel (Access Panel on page 100).
3. Remove the fan duct (Fan duct on page 132).
4. Remove the front fan assembly (Front Fan Assembly on page 133).
5. Remove the heat sink (Heat sink on page 139).
6. Rotate the locking lever to its full open position (1).
7. Carefully lift the processor from the socket (2).
CAUTION: Do NOT handle the pins in the processor socket. These pins are very fragile and
handling them could cause irreparable damage. Once pins are damaged it may be necessary to
replace the system board.
The heat sink must be installed within 24 hours of installing the processor to prevent damage to
the processor’s solder connections.
Figure 7-46 Removing the processor
To replace the processor, reverse the removal procedures.
Processor 141
NOTE: After installing a new processor onto the system board, always update the system ROM to
ensure that the latest version of the BIOS is being used on the computer. The latest system BIOS can be
found on the Web at: http://h18000.www1.hp.com/support/files.
Power Supply
Description Spare part number
Power supply, 90% efficient 613762-001
Power supply, standard 613763-001
WARNING! To reduce potential safety issues, only the power supply provided with the computer, a
replacement power supply provided by HP, or a power supply purchased as an accessory from HP
should be used with the computer.
The rotating power supply is located at the rear of the chassis. It is held in place by a bracket – no
screws are used.
WARNING! Voltage is always present on the system board when the computer is plugged into an
active AC outlet. To avoid possible personal injury and damage to the equipment the power cord
should be disconnected from the computer and/or the AC outlet before opening the computer.
1. Prepare the computer for disassembly (Preparation for Disassembly on page 99).
2. Remove the access panel (Access Panel on page 100).
3. Rotate the drive cage up and disconnect the power cables from all of the drives.
4. Disconnect all power cables from the system board as follows:
●4-pin PWRCPU
●6-pin PWR
●6-pin PWRCMD
5. Rotate the power supply to its full upright position.
6. Release the power supply cables from the cable retaining clip under the drive cage.
142 Chapter 7 Removal and Replacement Procedures Small Form Factor (SFF) Chassis
7. Pull the power supply forward until the posts on the power supply move forward in the power
supply bracket, and then lift the power supply straight up and out of the chassis.
Figure 7-47 Removing the power supply
To install the power supply, reverse the removal procedure.
CAUTION: When installing the power supply cables, make sure they are properly positioned so they
are not cut by the drive cage and are not pinched by the rotating power supply.
System Board
Description Spare part number
System board for use in Windows 7 models (includes thermal material) 703596-001
System board for use in Windows 8 Standard models 703596-501
System board for use in Windows 8 Professional models 703596-601
1. Prepare the computer for disassembly (Preparation for Disassembly on page 99).
2. Remove the access panel (Access Panel on page 100).
3. When replacing the system board, make sure the following components are removed from the
defective system board and installed on the replacement system board:
●Memory modules (Memory on page 105)
●Expansion cards (Expansion Card on page 109)
System Board 143
●Heat sink (Heat sink on page 139)
●Processor (Processor on page 141)
●WLAN module (WLAN module on page 113)
4. Remove the baffle from the chassis (Fan duct on page 132).
5. Remove the fan from the chassis (Front Fan Assembly on page 133).
6. Rotate the drive cage to its upright position.
7. Rotate the power supply to its full upright position.
8. Disconnect all data and power cables from the system board.
9. Disconnect the balance of the cables from the system board.
10. Remove the eight Torx T15 screws (1) that secure the system board to the chassis.
11. Lift up the front of the system board, and then pull the system board forward, up, and out of the
chassis (2).
Figure 7-48 Removing the system board
To install the system board, reverse the removal procedure.
NOTE: When replacing the system board, you must also change the chassis serial number in the
BIOS.
CAUTION: Before reinstalling the heat sink you must clean the top of the processor and the bottom of
the heat sink with an alcohol pad supplied in the spares kit. After the alcohol has evaporated, apply
thermal grease to the top of the processor from the syringe supplied in the spares kit.
CAUTION: When reconnecting the cables it is important that they be positioned so they do not
interfere with the rotation of the drive cage or power supply.
144 Chapter 7 Removal and Replacement Procedures Small Form Factor (SFF) Chassis
Using the Small Form Factor Computer in a Tower
Orientation
The Small Form Factor computer can be used in a tower orientation. The HP logo plate on the front
bezel is adjustable for either desktop or tower orientation.
1. Prepare the computer for disassembly (Preparation for Disassembly on page 99).
2. Orient the computer so that its right side is facing down and place the computer in the optional
stand.
Figure 7-49 Changing from Desktop to Tower Orientation
NOTE: To stabilize the computer in a tower orientation, HP recommends the use of the optional
tower stand.
3. Lock any security devices that were disengaged when the access panel was removed.
NOTE: Ensure at least 10.2 centimeters (4 inches) of space on all sides of the computer remains clear
and free of obstructions.
Using the Small Form Factor Computer in a Tower Orientation 145
8 Troubleshooting Without
Diagnostics
This chapter provides information on how to identify and correct minor problems, such as USB devices,
hard drive, optical drive, graphics, audio, memory, and software problems. If you encounter problems
with the computer, refer to the tables in this chapter for probable causes and recommended solutions.
NOTE: For information on specific error messages that may appear on the screen during Power-On
Self-Test (POST) at startup, refer to Appendix A, POST Error Messages on page 187.
Safety and Comfort
WARNING! Misuse of the computer or failure to establish a safe and comfortable work environment
may result in discomfort or serious injury. Refer to the Safety & Comfort Guide at http://www.hp.com/
ergo for more information on choosing a workspace and creating a safe and comfortable work
environment. For more information, refer to the Safety & Regulatory Information guide.
Before You Call for Technical Support
If you are having problems with the computer, try the appropriate solutions below to try to isolate the
exact problem before calling for technical support.
●Run the HP diagnostic tool.
●Run the hard drive self-test in Computer Setup. Refer to Computer Setup (F10) Utility on page 10
for more information.
●Check the Power LED on the front of the computer to see if it is flashing red. The flashing lights are
error codes that will help you diagnose the problem. Refer to Appendix A, POST Error Messages
on page 187 for more information.
●If the screen is blank, plug the monitor into a different video port on the computer if one is
available. Or, replace the monitor with a monitor that you know is functioning properly.
●If you are working on a network, plug another computer with a different cable into the network
connection. There may be a problem with the network plug or cable.
●If you recently added new hardware, remove the hardware and see if the computer functions
properly.
●If you recently installed new software, uninstall the software and see if the computer functions
properly.
●Boot the computer to the Safe Mode to see if it will boot without all of the drivers loaded. When
booting the operating system, use “Last Known Configuration.”
146 Chapter 8 Troubleshooting Without Diagnostics
●Refer to the comprehensive online technical support at http://www.hp.com/support.
●Refer to Helpful Hints on page 147 in this guide.
To assist you in resolving problems online, HP Instant Support Professional Edition provides you with
self-solve diagnostics. If you need to contact HP support, use HP Instant Support Professional Edition's
online chat feature. Access HP Instant Support Professional Edition at: http://www.hp.com/go/ispe.
Access the Business Support Center (BSC) at http://www.hp.com/go/bizsupport for the latest online
support information, software and drivers, proactive notification, and worldwide community of peers
and HP experts.
If it becomes necessary to call for technical assistance, be prepared to do the following to ensure that
your service call is handled properly:
●Be in front of your computer when you call.
●Write down the computer serial number, product ID number, and monitor serial number before
calling.
●Spend time troubleshooting the problem with the service technician.
●Remove any hardware that was recently added to your system.
●Remove any software that was recently installed.
●Restore the system from the Recovery Disc Set that you created or restore the system to its original
factory condition in System Software Requirement Disks (SSRD).
CAUTION: Restoring the system will erase all data on the hard drive. Be sure to back up all data
files before running the restore process.
NOTE: For sales information and warranty upgrades (Care Packs), call your local authorized service
provider or dealer.
Helpful Hints
If you encounter problems with the computer, monitor, or software, see the following list of general
suggestions before taking further action:
●Check that the computer and monitor are plugged into a working electrical outlet.
●Check that the voltage select switch (some models) is set to the appropriate voltage for your region
(115V or 230V).
●Check that the computer is turned on and the green power light is on.
●Check that the monitor is turned on and the green monitor light is on.
●Check the Power LED on the front of the computer to see if it is flashing red. The flashing lights are
error codes that will help you diagnose the problem. Refer to Appendix A, POST Error Messages
on page 187 for more information.
●Turn up the brightness and contrast controls of the monitor if the monitor is dim.
●Press and hold any key. If the system beeps, then the keyboard should be operating correctly.
●Check all cable connections for loose connections or incorrect connections.
Helpful Hints 147
●Wake the computer by pressing any key on the keyboard or pressing the power button. If the
system remains in suspend mode, shut down the computer by pressing and holding the power
button for at least four seconds then press the power button again to restart the computer. If the
system will not shut down, unplug the power cord, wait a few seconds, then plug it in again. The
computer will restart if it is set to power on automatically as soon as power is restored in
Computer Setup. If it does not restart, press the power button to start the computer.
●Reconfigure the computer after installing a non-plug and play expansion board or other option.
See Solving Hardware Installation Problems on page 169 for instructions.
●Be sure that all the needed device drivers have been installed. For example, if you are using a
printer, you need a driver for that model printer.
●Remove all bootable media (CD/DVD or USB device) from the system before turning it on.
●If you have installed an operating system other than the factory-installed operating system, check
to be sure that it is supported on the system.
●If the system has multiple video sources (embedded, PCI, or PCI-Express adapters) installed
(embedded video on some models only) and a single monitor, the monitor must be plugged into
the monitor connector on the source selected as the primary VGA adapter. During boot, the other
monitor connectors are disabled and if the monitor is connected into these ports, the monitor will
not function. You can select which source will be the default VGA source in Computer Setup.
CAUTION: When the computer is plugged into an AC power source, there is always voltage
applied to the system board. You must disconnect the power cord from the power source before
opening the computer to prevent system board or component damage.
Solving General Problems
You may be able to easily resolve the general problems described in this section. If a problem persists
and you are unable to resolve it yourself or if you feel uncomfortable about performing the operation,
contact an authorized dealer or reseller.
WARNING! When the computer is plugged into an AC power source, voltage is always applied to
the system board. To reduce the risk of personal injury from electrical shock and/or hot surfaces, be
sure to disconnect the power cord from the wall outlet and allow the internal system components to cool
before touching.
Table 8-1 Solving General Problems
Computer appears locked up and will not turn off when the power button is pressed.
Cause Solution
Software control of the power switch is not functional. 1. Press and hold the power button for at least four seconds
until the computer turns off.
2. Disconnect the power cord from the electrical outlet.
148 Chapter 8 Troubleshooting Without Diagnostics
Computer will not respond to keyboard or mouse.
Cause Solution
Computer is in Sleep state. To resume from Sleep state, press the power button.
CAUTION: When attempting to resume from Sleep state,
do not hold down the power button for more than four
seconds. Otherwise, the computer will shut down and you will
lose any unsaved data.
System has locked up. Restart computer.
Computer date and time display is incorrect.
Cause Solution
RTC (real-time clock) battery may need to be replaced.
NOTE: Connecting the computer to a live AC outlet
prolongs the life of the RTC battery.
Reset the date and time under Control Panel (Computer
Setup can also be used to update the RTC date and time). If
the problem persists, replace the RTC battery. See the
Removal and Replacement section for instructions on installing
a new battery, or contact an authorized dealer or reseller for
RTC battery replacement.
To access Control Panel in Windows 7, select Start, and then
select Control Panel.
To access Control Panel in Windows 8, from the Start screen,
type c, and then select Control Panel from the list of
applications.
Cursor will not move using the arrow keys on the keypad.
Cause Solution
The Num Lock key is turned on. Press the Num Lock key. The Num Lock light must be off if you
want to use the arrow keys on the keypad. You can also
disable or enable the Num Lock key in Computer Setup at
Advanced > Device Options.
There is no sound or sound volume is too low.
Cause Solution
System volume may be set low or muted. 1. Check the Computer Setup settings to make sure the
internal system speaker is not muted (this setting does not
affect the external speakers).
2. Make sure the external speakers are properly connected
and powered on and that the speakers' volume control is
set correctly.
3. Use the system volume control available in the operating
system to make sure the speakers are not muted or to
increase the volume.
Solving General Problems 149
Cannot remove computer cover or access panel.
Cause Solution
Smart Cover Lock, featured on some computers, is locked. Unlock the Smart Cover Lock using Computer Setup.
In case of forgotten password, power loss, or computer
malfunction, you must manually disable the Smart Cover lock .
A key to unlock the Smart Cover Lock is not available from
HP. Keys are typically available from a hardware store.
Poor performance.
Cause Solution
Processor is too hot. 1. Make sure airflow to the computer is not blocked. Leave
a 10.2-cm (4-inch) clearance on all vented sides of the
computer and above the monitor to permit the required
airflow.
2. Make sure fans are connected and working properly
(some fans only operate when needed).
3. Make sure the processor heat sink is installed properly.
Hard drive is full. Transfer data from the hard drive to create more space on the
hard drive.
Low on memory. Add more memory.
Hard drive fragmented. Defragment hard drive.
Program previously accessed did not release reserved memory
back to the system.
Restart the computer.
Virus resident on the hard drive. Run virus protection program.
Too many applications running. Windows 7:
1. Close unnecessary applications to free up memory.
2. Add more memory.
3. Some applications run in the background and can be
closed by right-clicking on their corresponding icons in
the task tray. To prevent these applications from
launching at startup:
In Windows 7:
a. Go to Start > All Programs > Accessories >
Run
b. Type msconfig, and then press Enter.
c. On the Startup tab of the System Configuration
Utility, clear applications that you do not want to
launch automatically, and the click OK.
150 Chapter 8 Troubleshooting Without Diagnostics
Table 8-1 Solving General Problems (continued)
Poor performance.
Cause Solution
In Windows 8:
a. On the Start screen, right-click, and then select the
All apps icon.
b. Under Windows System, click Run.
c. Type msconfig, and then press Enter.
d. On the Startup tab of the System Configuration
Utility, clear applications that you do not want to
launch automatically, and the click OK.
Some software applications, especially games, are stressful on
the graphics subsystem.
1. Lower the display resolution for the current application or
consult the documentation that came with the application
for suggestions on how to improve performance by
adjusting parameters in the application.
2. Add more memory.
3. Upgrade the graphics solution.
Cause unknown. Restart the computer.
Computer powered off automatically and the Power LED flashes Red two times, once every second,
followed by a two second pause, and the computer beeps two times. (Beeps stop after fifth iteration but
LEDs continue flashing).
Cause Solution
Processor thermal protection activated:
A fan may be blocked or not turning.
OR
The heat sink is not properly attached to the processor.
1. Ensure that the computer air vents are not blocked and
the processor cooling fan is running.
2. Open the access panel, press the power button, and see
if the processor fan (or other system fan) spins. If the fan
does not spin, make sure the fan cable is plugged onto
the system board header.
3. If fan a plugged in and not spinning, replace it.
Solving General Problems 151
System does not power on and the LEDs on the front of the computer are not flashing.
Cause Solution
System unable to power on. Press and hold the power button for less than 4 seconds. If the
hard drive LED turns green, then:
1. If equipped with a voltage selector, check that the
voltage selector (located on the rear of the power supply)
is set to the appropriate voltage. Proper voltage setting
depends on your region.
2. Remove the expansion cards one at a time until the
5V_aux light on the system board turns on.
3. Replace the system board.
OR
Press and hold the power button for less than 4 seconds. If the
hard drive LED does not turn on green then:
1. Check that the unit is plugged into a working AC outlet.
2. Open the access panel and check that the power button
cable is properly connected to the system board.
3. Check that the power supply cables are properly
connected to the system board.
4. Check to see if the 5V_aux light on the system board is
turned on. If it is turned on, then replace the power
button assembly.
5. If the 5V_aux light on the system board is off, then
replace the power supply.
6. Replace the system board.
Solving Power Problems
Common causes and solutions for power problems are listed in the following table.
Table 8-2 Solving Power Problems
Power supply shuts down intermittently.
Cause Solution
If equipped with a voltage selector, voltage selector switch on
rear of computer chassis (some models) not switched to
correct line voltage (115V or 230V).
Select the proper AC voltage using the selector switch.
Power supply will not turn on because of internal power
supply fault.
Replace the power supply.
152 Chapter 8 Troubleshooting Without Diagnostics
Computer powered off automatically and the Power LED flashes Red two times, once every second,
followed by a two second pause, and the computer beeps two times. (Beeps stop after fifth iteration but
LEDs continue flashing.)
Cause Solution
Processor thermal protection activated:
A fan may be blocked or not turning.
OR
The heat sink is not properly attached to the processor.
1. Ensure that the computer air vents are not blocked and
the processor cooling fan is running.
2. Open the access panel, press the power button, and see
if the processor fan (or other system fan) spins. If the fan
does not spin, make sure the fan cable is plugged onto
the system board header.
3. If fan a plugged in and not spinning, replace it.
Power LED flashes Red four times, once every second, followed by a two second pause, and the
computer beeps four times. (Beeps stop after fifth iteration but LEDs continue flashing.)
Cause Solution
Power failure (power supply is overloaded). 1. If equipped with a voltage selector, check that the
voltage selector, located on the rear of the power supply
(some models), is set to the appropriate voltage. Proper
voltage setting depends on your region.
2. Open the access panel and ensure the power supply
cable is seated into the connector on the system board.
3. Check if a device is causing the problem by removing
ALL attached devices (such as hard drives or optical
drives and expansion cards). Power on the system. If the
system enters POST, then power off and replace one
device at a time and repeat this procedure until failure
occurs. Replace the device that is causing the failure.
Continue adding devices one at a time to ensure all
devices are functioning properly.
4. Replace the power supply.
5. Replace the system board.
The incorrect external power supply adapter is being used on
the All-in One or USDT.
The power supply adapter must be at the correct power rating
and use the Smart ID technology before the system will power
up. Replace the power supply adapter with the HP-supplied
power supply adapter.
Solving Power Problems 153
Solving Hard Drive Problems
Table 8-3 Solving Hard Drive Problems
Hard drive error occurs.
Cause Solution
Hard disk has bad sectors or has failed. 1. In Windows 7, click Start, click Computer, and right-
click on a drive. Select Properties, and then select the
Tools tab. Under Error-checking click Check Now.
In Windows 8, on the Start screen type e, and then
select File Explorer from the list of applications. In the
left column, expand Computer, right-click on a drive,
select Properties, and then select the Tools tab. Under
Error checking click Check.
2. Use a utility to locate and block usage of bad sectors. If
necessary, reformat the hard disk.
Disk transaction problem.
Cause Solution
Either the directory structure is bad or there is a problem with
a file.
In Windows 7, click Start, expand Computer, and right-
click on a drive. Select Properties, and then select the
Tools tab. Under Error-checking click Check Now.
In Windows 8, on the Start screen type e, and then click File
Explorer from the list of applications. In the left column,
expand Computer, right-click on a drive, select Properties,
and then select the Tools tab. Under Error checking click
Check.
Drive not found (identified).
Cause Solution
Cable could be loose. Check cable connections.
The system may not have automatically recognized a newly
installed device.
See reconfiguration directions in the Solving Hardware
Installation Problems on page 169 section. If the system still
does not recognize the new device, check to see if the device
is listed within Computer Setup. If it is listed, the probable
cause is a driver problem. If it is not listed, the probable cause
is a hardware problem.
If this is a newly installed drive, run the Computer Setup utility
and try adding a POST delay under Advanced > Power-
On Options.
154 Chapter 8 Troubleshooting Without Diagnostics
Table 8-3 Solving Hard Drive Problems (continued)
Drive not found (identified).
Cause Solution
The device is attached to a SATA port that has been hidden in
Computer Setup.
Run the Computer Setup utility and ensure Device Available
is selected for the device's SATA port in Security > Device
Security.
Drive responds slowly immediately after power-up. Run Computer Setup and increase the POST Delay in
Advanced > Power-On Options.
Nonsystem disk/NTLDR missing message.
Cause Solution
The system is trying to start from the hard drive but the hard
drive may have been damaged.
1. Perform Drive Protection System (DPS) testing in system
ROM.
System files missing or not properly installed. 1. Insert bootable media and restart the computer.
2. Boot to the windows installation media and select the
recovery option. If only a restore kit is available, then
select the File Backup Program option, and then
restore the system.
3. Install system files for the appropriate operating system.
Hard drive boot has been disabled in Computer Setup. Run the Computer Setup utility and enable the hard drive entry
in the Storage > Boot Order list.
Bootable hard drive is not attached as first in a multi-hard
drive configuration.
If attempting to boot from a hard drive, ensure it is attached to
the system board dark blue SATA connector.
Bootable hard drive is not listed first in the Boot Order. Run the Computer Setup utility and select Storage > Boot
Order and ensure the bootable hard drive is listed
immediately under the Hard Drive entry.
Computer will not boot from hard drive.
Cause Solution
The device is attached to a SATA port that has been hidden in
Computer Setup.
1. Check SATA cable connections.
2. Run the Computer Setup utility and ensure Device
Available is selected for the device's SATA port in
Security > Device Security.
Boot order is not correct. Run the Computer Setup utility and change boot sequence in
Storage > Boot Order.
Solving Hard Drive Problems 155
Table 8-3 Solving Hard Drive Problems (continued)
Computer will not boot from hard drive.
Cause Solution
Hard Drive's “Emulation Type” is set to “None.” (some
models)
Run the Computer Setup utility and change the “Emulation
Type” to “Hard Disk” in the device's details under Storage >
Device Configuration.
Hard drive is damaged. Observe if the front panel Power LED is blinking RED and if
any beeps are heard. See Appendix A, POST Error Messages
on page 187 to determine possible causes for the blinking
red and beep codes.
See the Worldwide Limited Warranty for terms and
conditions.
Computer seems to be locked up.
Cause Solution
Program in use has stopped responding to commands. 1. Use the task manager to close programs that do not
respond.
2. Attempt the normal Windows “Shut Down” procedure. If
this fails, press the power button for four or more
seconds to turn off the power. To restart the computer,
press the power button again.
Solving Media Card Reader Problems
Table 8-4 Solving Media Card Reader Problems
Media card will not work in a digital camera after formatting it in Windows.
Cause Solution
By default, Windows will format any media card with a
capacity greater than 32MB with the FAT32 format. Some
digital cameras use the FAT (FAT16 & FAT12) format and can
not operate with a FAT32 formatted card.
Either format the media card in the digital camera or select
FAT file system to format the media card in a computer with
Windows.
A write-protected or locked error occurs when attempting to write to the media card.
Cause Solution
Media card is locked. Locking the media card is a safety
feature that prevents writing to and deleting from an SD/
Memory Stick/PRO card.
If using an SD card, make sure that the lock tab located on the
right of the SD card is not in the locked position. If using a
Memory Stick/PRO card, make sure that the lock tab located
on the bottom of the Memory Stick/PRO card is not in the
locked position.
156 Chapter 8 Troubleshooting Without Diagnostics
Can not write to the media card.
Cause Solution
The media card is a read-only memory (ROM) card. Check the manufacturer’s documentation included with your
card to see if it writable. Refer to the previous section for a list
of compatible cards.
Media card is locked. Locking the media card is a safety
feature that prevents writing to and deleting from an SD/
Memory Stick/PRO card.
If using an SD card, make sure that the lock tab located on the
right of the SD card is not in the locked position. If using a
Memory Stick/PRO card, make sure that the lock tab located
on the bottom of the Memory Stick/PRO card is not in the
locked position.
Unable to access data on the media card after inserting it into a slot.
Cause Solution
The media card is not inserted properly, is inserted in the
wrong slot, or is not supported.
Ensure that the card is inserted properly with the gold contact
on the correct side. The green LED will light if inserted
properly.
Do not know how to remove a media card correctly.
Cause Solution
The computer’s software is used to safely eject the card. In Windows 7, click Start, select Computer, right-click on
the corresponding drive icon, and then select Eject. Pull the
card out of the slot.
In Windows 8, on the Start screen, type e, and then click File
Explorer from the list of applications. Expand Computer,
right-click on the corresponding drive icon, and then select
Eject. Pull the card out of the slot.
NOTE: Never remove the card when the green LED is
flashing
After installing the media card reader and booting to Windows, the reader and the inserted cards are
not recognized by the computer.
Cause Solution
The operating system needs time to recognize the device if the
reader was just installed into the computer and you are
turning the PC on for the first time.
Wait a few seconds so that the operating system can
recognize the reader and the available ports, and then
recognize the media inserted in the reader.
Solving Media Card Reader Problems 157
After inserting a media card in the reader, the computer attempts to boot from the media card.
Cause Solution
The inserted media card has boot capability. 1. If you do not want to boot from the media card, remove
it during boot or do not select the option to boot from the
inserted media card during the boot process.
2. During POST (Power On Self-Test), press F9 to modify the
boot menu.
3. Change the boot sequence in F10 Computer Setup.
Solving Display Problems
If you encounter display problems, see the documentation that came with the monitor and to the
common causes and solutions listed in the following table.
Table 8-5 Solving Display Problems
Blank screen (no video).
Cause Solution
Monitor is not turned on and the monitor light is not on. Turn on the monitor and check that the monitor light is on.
Bad monitor. Try a different monitor.
The cable connections are not correct. Check the cable connection from the monitor to the computer
and to the electrical outlet.
You may have a screen blanking utility installed or energy
saver features are enabled.
Press any key or click the mouse button and type your
password (if set).
System ROM is corrupted; system is running in Boot Block
Emergency Recovery Mode (indicated by eight beeps).
Reflash the system ROM with the latest BIOS image.
You are using a fixed-sync monitor and it will not sync at the
resolution chosen.
Be sure that the monitor can accept the same horizontal scan
rate as the resolution chosen.
Computer is in Sleep state. Press the power button to resume from Sleep state.
CAUTION: When attempting to resume from Sleep state,
do not hold down the power button for more than four
seconds. Otherwise, the computer will shut down and you will
lose any unsaved data.
Monitor cable is plugged into the wrong connector. Systems may have a monitor connection on both the
motherboard or an add-in card. Try moving the monitor
connection to a different connector on the back of the
computer
158 Chapter 8 Troubleshooting Without Diagnostics
Table 8-5 Solving Display Problems (continued)
Blank screen (no video).
Cause Solution
Monitor settings in the computer are not compatible with the
monitor.
1. In Control Panel, select Category from the View by
list, then under Appearance and Personalization,
select Adjust screen resolution.
To access Control Panel in Windows 7, click Start, and
then select Control Panel.
To access Control Panel in Windows 8, from the Start
screen, type c, and then select Control Panel from the
list of applications.
2. Expand the Resolution box, and then use the sliding
control to reset the resolution.
Monitor is configured to use an input that is not active. Use the monitor's on-screen menu controls to select the input
that is being driven by the system. Refer to the monitor's user
documentation for more information on the on-screen controls
and settings.
Blank screen and the power LED flashes Red five times, once every second, followed by a two second
pause, and the computer beeps five times. (Beeps stop after fifth iteration but LEDs continue flashing.)
Cause Solution
Pre-video memory error. 1. Reseat DIMMs. Power on the system.
2. Replace DIMMs one at a time to isolate the faulty
module.
3. Replace third-party memory with HP memory.
4. Replace the system board.
Blank screen and the power LED flashes Red six times, once every second, followed by a two second
pause, and the computer beeps six times. (Beeps stop after fifth iteration but LEDs continue flashing.)
Cause Solution
Pre-video graphics error. For systems with a graphics card:
1. Reseat the graphics card (if applicable). Power on the
system.
2. Replace the graphics card (if applicable).
3. Replace the system board.
For systems with integrated graphics, replace the system
board.
Solving Display Problems 159
Blank screen and the power LED flashes Red seven times, once every second, followed by a two second
pause, and the computer beeps seven times. (Beeps stop after fifth iteration but LEDs continue flashing.)
Cause Solution
System board failure (ROM detected failure prior to video). Replace the system board.
Monitor does not function properly when used with energy saver features.
Cause Solution
Monitor without energy saver capabilities is being used with
energy saver features enabled.
Disable monitor energy saver feature.
Dim characters.
Cause Solution
The brightness and contrast controls are not set properly. Adjust the monitor brightness and contrast controls.
Cables are not properly connected. Check that the graphics cable is securely connected to the
graphics card (if applicable) or video connector and the
monitor.
Blurry video or requested resolution cannot be set.
Cause Solution
If the graphics controller was upgraded, the correct graphics
drivers may not be loaded.
Install the video drivers included in the upgrade kit.
Monitor is not capable of displaying requested resolution. Change requested resolution.
Graphics card is bad. Replace the graphics card.
The picture is broken up, rolls, jitters, or flashes.
Cause Solution
The monitor connections may be incomplete or the monitor
may be incorrectly adjusted.
1. Be sure the monitor cable is securely connected to the
computer.
2. In a two-monitor system or if another monitor is in close
proximity, be sure the monitors are not interfering with
each other’s electromagnetic field by moving them apart.
3. Fluorescent lights or fans may be too close to the
monitor.
Monitor needs to be degaussed. Degauss the monitor. Refer to the documentation that came
with the monitor for instructions.
160 Chapter 8 Troubleshooting Without Diagnostics
Image is not centered.
Cause Solution
Position may need adjustment. Press the monitor's Menu button to access the OSD menu.
Select ImageControl/ Horizontal Position or Vertical
Position to adjust the horizontal or vertical position of the
image.
“No Connection, Check Signal Cable” displays on screen.
Cause Solution
Monitor video cable is disconnected. Connect the video cable between the monitor and computer.
CAUTION: Ensure that the computer power is off while
connecting the video cable.
Solving Display Problems 161
“Out of Range” displays on screen.
Cause Solution
Video resolution and refresh rate are set higher than what the
monitor supports.
Restart the computer and enter Safe Mode. Change the
settings to a supported setting then restart the computer so that
the new settings take effect.
To enter Safe Mode in Windows 7:
1. Restart the computer.
2. Press and hold the F8 key as your computer restarts,
before the Windows logo appears. If the Windows logo
appears, you must restart the computer and try again.
3. On the Advanced Boot Options screen, use the arrow
keys to highlight the safe mode option you want, and
then press Enter.
4. Log on to your computer with a user account that has
administrator rights.
When your computer is in safe mode, Safe Mode
displays in the corners of your monitor. To exit safe
mode, restart your computer and let Windows start
normally.
To enter Safe Mode in Windows 8:
1. Press the Windows logo + l to open the Settings charm.
2. Select Change PC Settings, select General, and then
under Advanced startup, click Restart now.
3. Select Troubleshoot, select Advanced options,
select Startup Settings, and then click Restart.
4. Use the function keys or number keys to select the safe
mode option you want.
When your computer is in safe mode, Safe Mode
displays in the corners of your monitor. To exit safe
mode, restart your computer and let Windows start
normally.
High pitched noise coming from inside a flat panel monitor.
Cause Solution
Brightness and/or contrast settings are too high. Lower brightness and/or contrast settings.
162 Chapter 8 Troubleshooting Without Diagnostics
Fuzzy focus; streaking, ghosting, or shadowing effects; horizontal scrolling lines; faint vertical bars; or
unable to center the picture on the screen (flat panel monitors using an analog VGA input connection
only).
Cause Solution
Flat panel monitor’s internal digital conversion circuits may be
unable to correctly interpret the output synchronization of the
graphics card.
1. Select the monitor’s Auto-Adjustment option in the
monitor’s on-screen display menu.
2. Manually synchronize the Clock and Clock Phase on-
screen display functions. To download a SoftPaq that will
assist you with the synchronization, go to the following
Web site, select the appropriate monitor, and download
either SP32347 or SP32202: http://www.hp.com/
support
Graphics card is not seated properly or is bad (some models). 1. Reseat the graphics card.
2. Replace the graphics card.
Certain typed symbols do not appear correct.
Cause Solution
The font you are using does not support that particular
symbol.
Use the Character Map to locate and select the appropriate
symbol. You can copy the symbol from the Character Map
into a document.
In Windows 7, click Start, select All Programs, select
Accessories, select System Tools, and then select
Character Map.
In Windows 8, on the Start screen, type ch, and then select
Character Map from the list of applications.
Solving Audio Problems
If the computer has audio features and you encounter audio problems, see the common causes and
solutions listed in the following table.
Table 8-6 Solving Audio Problems
Sound cuts in and out.
Cause Solution
Processor resources are being used by other open
applications.
Shut down all open processor-intensive applications.
Solving Audio Problems 163
Sound does not come out of the speaker or headphones.
Cause Solution
Software volume control is turned down or muted. Double-click the Speaker icon on the taskbar, then make
sure that Mute is not selected and use the volume slider to
adjust the volume.
NOTE: In Windows 8, the taskbar is available at the bottom
of the Desktop screen.
Audio is hidden in Computer Setup. Enable the audio in Computer Setup: Security >
Device Security > System Audio.
The external speakers are not turned on. Turn on the external speakers.
The audio device may be connected to the wrong jack. Ensure that the device is connected to the correct jack on the
computer. The rear audio jack output is the green receptacle.
The speakers should be plugged into the line-out jack and the
headphones should be plugged into the headphone jack.
External speakers plugged into the wrong audio jack on a
recently installed sound card.
See the sound card documentation for proper speaker
connection. The rear audio jack output is the green
receptacle.
Headphones or devices connected to the line-out connector
mute the internal speaker.
Turn on and use headphones or external speakers, if
connected, or disconnect headphones or external speakers.
Computer is in Sleep state. Press the power button to resume from Sleep state.
CAUTION: When attempting to resume from Sleep state,
do not hold down the power button for more than four
seconds. Otherwise, the computer will shut down and you will
lose any unsaved data.
Internal speaker is disabled in Computer Setup. Enable the internal speaker in Computer Setup. Select
Advanced > Device Options > Internal Speaker.
The application is set to use a different audio device than
speakers.
Some graphics cards support audio over the DisplayPort
connection (if applicable), so multiple audio devices may be
listed in Device Manager. Make sure the correct device is
being used.
To access Device Manager in Windows 7, click Start, select
Control Panel, and then select Device Manager.
To access Device Manager in Windows 8, from the Start
screen, type c, select Control Panel from the list of
applications, and then select Device Manager.
Some applications can select which audio output device is
used.
Make sure the application has selected the correct audio
device.
The operating system controls may be set to use a different
audio device as the default output device than what is
expected.
Set the operating system to use the correct audio device.
164 Chapter 8 Troubleshooting Without Diagnostics
Sound from headphones is not clear or muffled.
Cause Solution
Headphones are plugged into the rear audio output
connector. The rear audio output connector is for powered
audio devices and is not designed for headphone use.
Plug the headphones into the headphone connector on the
front of the computer.
Computer appears to be locked up while recording audio.
Cause Solution
The hard disk may be full. Before recording, make sure there is enough free space on the
hard disk. You can also try recording the audio file in a
compressed format.
Line-in jack is not functioning properly.
Cause Solution
Jack has been reconfigured in the audio driver or application
software.
In the audio driver or application software, reconfigure the
jack or set the jack to its default value.
There is no sound or sound volume is too low.
Cause Solution
The application is set to use a different audio device than
speakers.
Some graphics cards support audio over the DisplayPort
connection (if applicable), so multiple audio devices may be
listed in Device Manager. Make sure the correct device is
being used.
To access Device Manager in Windows 7, click Start, select
Control Panel, and then select Device Manager.
To access Device Manager in Windows 8, from the Start
screen, type c, select Control Panel from the list of
applications, and then select Device Manager.
Some applications can select which audio output device is
used.
Make sure the application has selected the correct audio
device.
The operating system controls may be set to use a different
audio device as the default output device than what is
expected.
Set the operating system to use the correct audio device.
Solving Printer Problems
If you encounter printer problems, see the documentation that came with the printer and to the common
causes and solutions listed in the following table.
Solving Printer Problems 165
Table 8-7 Solving Printer Problems
Printer will not print.
Cause Solution
Printer is not turned on and online. Turn the printer on and make sure it is online.
The correct printer drivers for the application are not installed. 1. Install the correct printer driver for the application.
2. Try printing using the MS-DOS command:
DIR C:\ > [printer port]
where [printer port] is the address of the printer being
used. If the printer works, reload the printer driver.
To run MS-DOS commands, press the Windows key + r, type
cmd in the Open box, and then click OK.
If you are on a network, you may not have made the
connection to the printer.
Make the proper network connections to the printer.
Printer may have failed. Run printer self-test.
Printer will not turn on.
Cause Solution
The cables may not be connected properly. Reconnect all cables and check the power cord and electrical
outlet.
Printer prints garbled information.
Cause Solution
The correct printer driver for the application is not installed. Install the correct printer driver for the application.
The cables may not be connected properly. Reconnect all cables.
Printer memory may be overloaded. Reset the printer by turning it off for one minute, then turn it
back on.
Printer will not print.
Cause Solution
The printer may be out of paper. Check the paper tray and refill it if it is empty.
Solving Keyboard and Mouse Problems
If you encounter keyboard or mouse problems, see the documentation that came with the equipment
and to the common causes and solutions listed in the following table.
166 Chapter 8 Troubleshooting Without Diagnostics
Table 8-8 Solving Keyboard Problems
A wireless keyboard/mouse is not working correctly. Symptoms include lagging mouse movement,
jumpy mouse/keyboard, or no function of mouse/keyboard and external drive.
Cause Solution
If your computer is equipped with USB 3.0 ports, connected
USB 3.0 devices can interfere with the wireless keyboard USB
receiver.
Connect the wireless keyboard USB receiver to a USB 2.0
port that is separated from ports with USB 3.0 devices. If you
still experience interference, you may have to place the
connectors farther apart using an external USB hub.
Keyboard commands and typing are not recognized by the computer.
Cause Solution
Keyboard connector is not properly connected. Shut down the computer, reconnect the keyboard to the back
of the computer, and then restart the computer.
Program in use has stopped responding to commands. Shut down your computer using the mouse and then restart the
computer.
Keyboard needs repairs. See the Worldwide Limited Warranty for terms and
conditions.
Computer is in Sleep state. Press the power button to resume from Sleep state.
CAUTION: When attempting to resume from Sleep date, do
not hold down the power button for more than four seconds.
Otherwise, the computer will shut down and you will lose any
unsaved data.
Cursor will not move using the arrow keys on the keypad.
Cause Solution
The Num Lock key is on. Press the Num Lock key. The Num Lock light should be off if
you want to use the arrow keys on the keypad. You can
disable or enable the Num Lock key in Computer Setup at
Advanced > Device Options.
Solving Keyboard and Mouse Problems 167
Table 8-9 Solving Mouse Problems
Mouse does not respond to movement or is too slow.
Cause Solution
Mouse connector is not properly plugged into the back of the
computer.
Shut down the computer using the keyboard.
Windows 7:
1. Press the Ctrl and Esc keys at the same time (or press the
Windows logo key) to display the Start menu.
2. Use the arrow keys to select Shut Down and then press
Enter.
3. After the shutdown is complete, plug the mouse
connector into the back of the computer (or the
keyboard) and restart.
Windows 8:
1. Press the Windows logo + l to open the Settings charm.
2. Use the arrow keys to select Power, and then press
Enter.
3. Use the arrow keys to select Shut Down, and then
press Enter.
4. After the shutdown is complete, plug the mouse
connector into the back of the computer (or the
keyboard) and restart.
Program in use has stopped responding to commands. Shut down the computer using the keyboard then restart the
computer.
Mouse may need cleaning. Remove the roller ball cover on the mouse and clean the
internal components.
Mouse may need repair. See the Worldwide Limited Warranty for terms and
conditions.
Computer is in Sleep state. Press the power button to resume from Sleep state.
CAUTION: When attempting to resume from Sleep state,
do not hold down the power button for more than four
seconds. Otherwise, the computer will shut down and you will
lose any unsaved data.
Mouse will only move vertically, horizontally, or movement is jerky.
Cause Solution
Mouse roller ball or the rotating encoder shafts that make
contact with the ball are dirty.
Remove roller ball cover from the bottom of the mouse and
clean the internal components with a mouse cleaning kit
available from most computer stores.
168 Chapter 8 Troubleshooting Without Diagnostics
Solving Hardware Installation Problems
You may need to reconfigure the computer when you add or remove hardware, such as an additional
drive or expansion card. If you install a plug and play device, Windows automatically recognizes the
device and configures the computer. If you install a non-plug and play device, you must reconfigure the
computer after completing installation of the new hardware. In Windows, use the Add Hardware
Wizard and follow the instructions that appear on the screen.
To open the Add Hardware Wizard, open a Command Prompt and open hdwwiz.exe.
WARNING! When the computer is plugged into an AC power source, voltage is always applied to
the system board. To reduce the risk of personal injury from electrical shock and/or hot surfaces, be
sure to disconnect the power cord from the wall outlet and allow the internal system components to cool
before touching.
Table 8-10 Solving Hardware Installation Problems
A new device is not recognized as part of the system.
Cause Solution
Device is not seated or connected properly. Ensure that the device is properly and securely connected and
that pins in the connector are not bent down.
Cable(s) of new external device are loose or power cables
are unplugged.
Ensure that all cables are properly and securely connected
and that pins in the cable or connector are not bent down.
Power switch of new external device is not turned on. Turn off the computer, turn on the external device, then turn on
the computer to integrate the device with the computer system.
When the system advised you of changes to the configuration,
you did not accept them.
Reboot the computer and follow the instructions for accepting
the changes.
A plug and play board may not automatically configure when
added if the default configuration conflicts with other devices.
Use Windows Device Manager to deselect the automatic
settings for the board and choose a basic configuration that
does not cause a resource conflict. You can also use
Computer Setup to reconfigure or disable devices to resolve
the resource conflict.
To access Device Manager in Windows 7, click Start, select
Control Panel, and then select Device Manager.
To access Device Manager in Windows 8, from the Start
screen, type c, select Control Panel from the list of
applications, and then select Device Manager.
USB ports on the computer are disabled in Computer Setup. Run the Computer Setup utility and ensure that Device
available is selected for appropriate USB ports under
Security > USB Security.
Solving Hardware Installation Problems 169
Computer will not start.
Cause Solution
Wrong memory modules were used in the upgrade or
memory modules were installed in the wrong location.
1. Review the documentation that came with the system to
determine if you are using the correct memory modules
and to verify the proper installation.
NOTE: DIMM1 or XMM1 must always be installed. On
all computers except the USDT, DIMM1 must be installed
before DIMM2, and DIMM3 must be installed before
DIMM4.
2. Observe the beeps and LED lights on the front of the
computer. Beeps and flashing LEDs are codes for specific
problems.
3. If you still cannot resolve the issue, contact Customer
Support.
Power LED flashes Red five times, once every second, followed by a two second pause, and the
computer beeps five times. (Beeps stop after fifth iteration but LEDs continue flashing.)
Cause Solution
Memory is installed incorrectly or is bad. CAUTION: To avoid damage to the DIMMs or the system
board, you must unplug the computer power cord before
attempting to reseat, install, or remove a DIMM module.
1. Reseat DIMMs. Power on the system.
2. Replace DIMMs one at a time to isolate the faulty
module.
NOTE: DIMM1 or XMM1 must always be installed. On
all computers except the USDT, DIMM1 must be installed
before DIMM2, and DIMM3 must be installed before
DIMM4
3. Replace third-party memory with HP memory.
4. Replace the system board.
Power LED flashes Red six times, once every second, followed by a two second pause, and the computer
beeps six times. (Beeps stop after fifth iteration but LEDs continue flashing.)
Cause Solution
Graphics card (some models) is not seated properly or is bad,
or system board is bad.
For systems with a graphics card:
1. Reseat the graphics card. Power on the system.
2. Replace the graphics card.
3. Replace the system board.
For systems with integrated graphics, replace the system
board.
170 Chapter 8 Troubleshooting Without Diagnostics
Power LED flashes Red ten times, once every second, followed by a two second pause, and the computer
beeps ten times. (Beeps stop after fifth iteration but LEDs continue flashing.)
Cause Solution
Bad option card. 1. Check each option card by removing the cards one at
time (if multiple cards), then power on the system to see if
fault goes away.
2. Once bad card is identified, remove and replace bad
option card.
3. Replace the system board.
Solving Network Problems
Some common causes and solutions for network problems are listed in the following table. These
guidelines do not discuss the process of debugging the network cabling.
Table 8-11 Solving Network Problems
Wake-on-LAN feature is not functioning.
Cause Solution
S5 Maximum Power Saving feature is enabled. Disable the S5 Maximum Power Saving option in Computer
Setup. Select Power > Hardware Power Management
> S5 Maximum Power Savings.
Solving Network Problems 171
Table 8-11 Solving Network Problems (continued)
Wake-on-LAN feature is not functioning.
Cause Solution
S5 Wake on LAN is disabled (some models). Enable the S5 Wake on LAN option in Computer Setup.
Select Advanced > Device Options > S5 Wake on
LAN.
Wake-on-LAN is not enabled. To enable Wake-on-LAN in Windows 7:
1. Select Start > Control Panel > Network and
Sharing Center.
2. Under Tasks, select Manage network
connections.
3. Click Local Area Connection.
4. Click the Properties button.
5. Click the Configure button.
6. Click the Power Management tab, then select
Allow this device to wake the computer.
To enable Wake-on-LAN in Windows 8:
1. From the Start screen, type c, and then select Control
Panel from the list of applications.
2. Select Network and Sharing Center, and then click
the Ethernet link next to the connection.
3. Click the Properties button.
4. Click the Configure button.
5. Click the Power Management tab, then enable the
appropriate Wake-on LAN option.
Network driver does not detect network controller.
Cause Solution
Network controller is disabled. 1. Run Computer Setup and enable network controller.
2. Enable the network controller in the operating system
using Device Manager.
To access Device Manager in Windows 7, click Start,
select Control Panel, and then select Device
Manager.
To access Device Manager in Windows 8, from the Start
screen, type c, select Control Panel from the list of
applications, and then select Device Manager.
Incorrect network driver. Check the network controller documentation for the correct
driver or obtain the latest driver from the manufacturer’s Web
site.
172 Chapter 8 Troubleshooting Without Diagnostics
Network status link light never flashes.
NOTE: The network status light is supposed to flash when there is network activity.
Cause Solution
No active network is detected. Check cabling and network equipment for proper connection.
Network controller is not set up properly. Check for the device status within Windows, such as Device
Manager for driver load and the Network Connections applet
within Windows for link status.
To access Device Manager in Windows 7, click Start, select
Control Panel, and then select Device Manager.
To access Device Manager in Windows 8, from the Start
screen, type c, select Control Panel from the list of
applications, and then select Device Manager.
Network controller is disabled. 1. Run Computer Setup and enable network controller.
2. Enable the network controller in the operating system
using Device Manager.
To access Device Manager in Windows 7, click Start,
select Control Panel, and then select Device
Manager.
To access Device Manager in Windows 8, from the Start
screen, type c, select Control Panel from the list of
applications, and then select Device Manager.
Network driver is not properly loaded. Reinstall network drivers.
System cannot autosense the network. Disable auto-sensing capabilities and force the system into the
correct operating mode.
Diagnostics reports a failure.
Cause Solution
The cable is not securely connected. Ensure that the cable is securely attached to the network
connector and that the other end of the cable is securely
attached to the correct device.
The cable is attached to the incorrect connector. Ensure that the cable is attached to the correct connector.
There is a problem with the cable or a device at the other end
of the cable.
Ensure that the cable and device at the other end are
operating correctly.
Network controller interrupt is shared with an expansion
board.
Under the Computer Setup Advanced menu, change the
resource settings for the board.
The network controller is defective. Contact an authorized service provider.
Solving Network Problems 173
Diagnostics passes, but the computer does not communicate with the network.
Cause Solution
Network drivers are not loaded, or driver parameters do not
match current configuration.
Make sure the network drivers are loaded and that the driver
parameters match the configuration of the network controller.
Make sure the correct network client and protocol is installed.
The network controller is not configured for this computer. Select the Network and Sharing Center icon in the
Control Panel and configure the network controller.
To access Control Panel in Windows 7, click Start, and then
select Control Panel.
To access Control Panel in Windows 8, from the Start screen,
type c, and then select Control Panel.
Network controller stopped working when an expansion board was added to the computer.
Cause Solution
Network controller interrupt is shared with an expansion
board.
Under the Computer Setup Advanced menu, change the
resource settings for the board.
The network controller requires drivers. Verify that the drivers were not accidentally deleted when the
drivers for a new expansion board were installed.
The expansion board installed is a network card (NIC) and
conflicts with the embedded NIC.
Under the Computer Setup Advanced menu, change the
resource settings for the board.
Network controller stops working without apparent cause.
Cause Solution
The files containing the network drivers are corrupted. Reinstall the network drivers using the Recovery Disc Set in
Windows 7 or Windows recovery tools in Windows 8.
If necessary, download the softpaq from the web (from a
different computer).
The cable is not securely connected. Ensure that the cable is securely attached to the network
connector and that the other end of the cable is securely
attached to the correct device.
The network controller is defective. Contact an authorized service provider.
New network card will not boot.
Cause Solution
New network card may be defective or may not meet industry-
standard specifications.
Install a working, industry-standard NIC, or change the boot
sequence to boot from another source.
174 Chapter 8 Troubleshooting Without Diagnostics
Cannot connect to network server when attempting Remote System Installation.
Cause Solution
The network controller is not configured properly. Verify Network Connectivity, that a DHCP Server is present,
and that the Remote System Installation Server contains the
NIC drivers for your NIC.
System setup utility reports unprogrammed EEPROM.
Cause Solution
Unprogrammed EEPROM. Contact an authorized service provider.
Solving Memory Problems
If you encounter memory problems, some common causes and solutions are listed in the following
table.
CAUTION: Power may still be supplied to the DIMMs when the computer is turned off (depending on
the Management Engine (ME) settings). To avoid damage to the DIMMs or the system board, you must
unplug the computer power cord before attempting to reseat, install, or remove a memory module.
For those systems that support ECC memory, HP does not support mixing ECC and non-ECC memory.
Otherwise, the computer will not boot the operating system.
NOTE: The memory count will be affected by configurations with the Management Engine (ME)
enabled. The ME uses 8MB of system memory in single channel mode or 16MB of memory in dual-
channel mode to download, decompress, and execute the ME firmware for Out-of-Band (OOB), third-
party data storage, and other management functions.
Table 8-12 Solving Memory Problems
System will not boot or does not function properly after installing additional memory modules.
Cause Solution
A memory module is not installed in the DIMM1 or XMM1
socket.
Ensure that a memory module is installed in the DIMM1 or
XMM1 socket on the system board. This socket must be
populated with a memory module.
Memory module is not the correct type or speed grade for the
system or the new memory module is not seated properly.
Replace module with the correct industry-standard device for
the computer. On some models, ECC and non-ECC memory
modules cannot be mixed.
Out of memory error.
Cause Solution
You have run out of memory to run the application. Check the application documentation to determine the
memory requirements.
Solving Memory Problems 175
Memory count during POST is wrong.
Cause Solution
The memory modules may not be installed correctly. Check that the memory modules have been installed correctly
and that proper modules are used.
Integrated graphics may use system memory. No action required.
Insufficient memory error during operation.
Cause Solution
Too many Terminate and Stay Resident programs (TSRs) are
installed.
Delete any TSRs that you do not need.
You have run out of memory for the application. Check the memory requirements for the application or add
more memory to the computer.
Power LED flashes Red five times, once every second, followed by a two second pause, and the
computer beeps five times. (Beeps stop after fifth iteration but LEDs continue flashing.)
Cause Solution
Memory is installed incorrectly or is bad. 1. Reseat DIMMs. Power on the system.
2. Replace DIMMs one at a time to isolate the faulty
module.
3. Replace third-party memory with HP memory.
4. Replace the system board.
Solving Processor Problems
If you encounter processor problems, common causes and solutions are listed in the following table.
Table 8-13 Solving Processor Problems
Poor performance is experienced.
Cause Solution
Processor is hot. 1. Make sure the airflow to the computer is not blocked.
2. Make sure the fans are connected and working properly
(some fans only operate when needed).
3. Make sure the processor heat sink is installed properly.
176 Chapter 8 Troubleshooting Without Diagnostics
Power LED flashes Red three times, once every second, followed by a two second pause.
Cause Solution
Processor is not seated properly or not installed. 1. Check to see that the processor is present.
2. Reseat the processor.
Power LED flashes Red eleven times, once every second, followed by a two second pause.
Cause Solution
The current processor does not support a feature previously
enabled on this system.
1. Install a TXT (Trusted Execution Technology) capable
processor.
2. Disable TXT in the Computer Setup (F10) utility.
3. Reinstall the original processor.
Solving CD-ROM and DVD Problems
If you encounter CD-ROM or DVD problems, see the common causes and solutions listed in the
following table or to the documentation that came with the optional device.
Table 8-14 Solving CD-ROM and DVD Problems
System will not boot from CD-ROM or DVD drive.
Cause Solution
The device is attached to a SATA port that has been hidden in
the Computer Setup utility.
Run the Computer Setup utility and ensure Device Available
is selected for the device's SATA port in Security > Device
Security.
Removable Media Boot is disabled in the Computer Setup
utility.
Run the Computer Setup utility and enable booting to
removable media in Storage > Storage Options. Ensure
CD-ROM is enabled in Storage > Boot Order.
Network Boot is enabled in Computer Setup. Run the Computer Setup utility and disable Network Boot in
Security > Network Boot.
Non-bootable CD in drive. Try a bootable CD in the drive.
Boot order not correct. Run the Computer Setup utility and change boot sequence in
Storage > Boot Order.
Drive not found (identified).
Cause Solution
Cable could be loose. Check cable connections.
Solving CD-ROM and DVD Problems 177
Table 8-14 Solving CD-ROM and DVD Problems (continued)
Drive not found (identified).
Cause Solution
The system may not have automatically recognized a newly
installed device.
See reconfiguration directions in the Solving Hardware
Installation Problems on page 169 section. If the system still
does not recognize the new device, check to see if the device
is listed within Computer Setup. If it is listed, the probable
cause is a driver problem. If it is not listed, the probable cause
is a hardware problem.
If this is a newly installed drive, run the Computer Setup utility
and try adding a POST delay under Advanced > Power-
On Options.
The device is attached to a SATA port that has been hidden in
Computer Setup.
Run the Computer Setup utility and ensure Device Available
is selected for the device's SATA port in Security > Device
Security.
Drive responds slowly immediately after power-up. Run Computer Setup and increase the POST Delay in
Advanced > Power-On Options.
CD-ROM or DVD devices are not detected or driver is not loaded.
Cause Solution
Drive is not connected properly or not properly configured. See the documentation that came with the optional device.
Movie will not play in the DVD drive.
Cause Solution
Movie may be regionalized for a different country. See the documentation that came with the DVD drive.
Decoder software is not installed. Install decoder software.
Damaged media. Replace media.
Movie rating locked out by parental lock. Use DVD software to remove parental lock.
Media installed upside down. Reinstall media.
Cannot eject compact disc (tray-load unit).
Cause Solution
Disc not properly seated in the drive. Turn off the computer and insert a thin metal rod into the
emergency eject hole and push firmly. Slowly pull the tray out
from the drive until the tray is fully extended, then remove
the disc.
178 Chapter 8 Troubleshooting Without Diagnostics
CD-ROM, CD-RW, DVD-ROM, or DVD-R/RW drive cannot read a disc or takes too long to start.
Cause Solution
Media is corrupt. Try different media to confirm whether media is valid.
Media has been inserted upside down. Re-insert the media with the label facing up.
The DVD-ROM drive takes longer to start because it has to
determine the type of media played, such as audio or video.
Wait at least 30 seconds to let the DVD-ROM drive determine
the type of media being played. If the disc still does not start,
read the other solutions listed for this topic.
CD or DVD disc is dirty. Clean CD or DVD with a CD cleaning kit, available from most
computer stores.
Windows does not detect the CD-ROM or DVD-ROM drive. 1. Use Device Manager to remove or uninstall the device.
To access Device Manager in Windows 7, click Start,
select Control Panel, and then select Device
Manager.
To access Device Manager in Windows 8, from the Start
screen, type c, select Control Panel from the list of
applications, and then select Device Manager.
2. Restart the computer and let Windows detect the CD or
DVD driver.
Recording or copying CDs is difficult or impossible.
Cause Solution
Wrong or poor quality media type. 1. Try using a slower speed when recording.
2. Verify that you are using the correct media for the drive.
3. Try a different brand of media. Quality varies widely
between manufacturers.
Solving USB Flash Drive Problems
If you encounter USB flash drive problems, common causes and solutions are listed in the following
table.
Table 8-15 Solving USB Flash Drive Problems
USB flash drive is not seen as a drive letter in Windows.
Cause Solution
The drive letter after the last physical drive is not available. Change the default drive letter for the flash drive in Windows.
Solving USB Flash Drive Problems 179
USB flash drive not found (identified).
Cause Solution
The device is attached to a USB port that has been hidden in
Computer Setup.
Run the Computer Setup utility and enable USB ports in
Security > USB Security.
The device was not properly seated before power-up. Ensure the device is fully inserted into the USB port before
applying power to the system
System will not boot from USB flash drive.
Cause Solution
Boot order is not correct. Run the Computer Setup utility and change boot sequence in
Storage > Boot Order.
Removable Media Boot is disabled in the Computer Setup
utility.
Run the Computer Setup utility and enable booting to
removable media in Storage > Storage Options. Ensure
USB is enabled in Storage > Boot Order.
The computer boots to DOS after making a bootable flash drive.
Cause Solution
Flash drive is bootable. Install the flash drive only after the operating system boots.
Flash drive is defective. Try a different flash drive.
Solving Front Panel Component Problems
If you encounter problems with devices connected to the front panel, refer to the common causes and
solutions listed in the following table.
A USB device, headphone, or microphone is not recognized by the computer.
Cause Solution
Device is not properly connected. 1. Turn off the computer.
2. Reconnect the device to the front of the computer and
restart the computer.
The device does not have power. If the USB device requires AC power, be sure one end is
connected to the device and one end is connected to a live
outlet.
The correct device driver is not installed. 1. Install the correct driver for the device.
2. You might need to reboot the computer.
The cable from the device to the computer does not work. 1. If possible, replace the cable.
2. Restart the computer.
180 Chapter 8 Troubleshooting Without Diagnostics
A USB device, headphone, or microphone is not recognized by the computer.
Cause Solution
The device is not working. 1. Replace the device.
2. Restart the computer.
USB ports on the computer are disabled in Computer Setup. Run the Computer Setup utility and ensure that the USB ports
are set to Enabled in Security > USB Security.
Solving Internet Access Problems
If you encounter Internet access problems, consult your Internet Service Provider (ISP) or refer to the
common causes and solutions listed in the following table.
Unable to connect to the Internet.
Cause Solution
Internet Service Provider (ISP) account is not set up properly. Verify Internet settings or contact your ISP for assistance.
Web browser is not set up properly. Verify that the Web browser is installed and set up to work
with your ISP.
Cable/DSL modem is not plugged in. Plug in cable/DSL modem. You should see a “power” LED
light on the front of the cable/DSL modem.
Cable/DSL service is not available or has been interrupted
due to bad weather.
Try connecting to the Internet at a later time or contact your
ISP. (If the cable/DSL service is connected, the “cable” LED
light on the front of the cable/DSL modem will be on.)
The CAT5 UTP cable is disconnected. Connect the CAT5 UTP cable between the cable modem and
the computers’s RJ-45 connector. (If the connection is good,
the “PC” LED light on the front of the cable/DSL modem will
be on.)
Solving Internet Access Problems 181
Unable to connect to the Internet.
Cause Solution
IP address is not configured properly. Contact your ISP for the correct IP address.
Cookies are corrupted. (A “cookie” is a small piece of
information that a Web server can store temporarily with the
Web browser. This is useful for having the browser remember
some specific information that the Web server can later
retrieve.)
Windows 7:
1. Select Start > Control Panel.
2. Click Internet Options.
3. In the Browsing history section on the General tab,
click the Delete button.
4. Select the Cookies check box and click the Delete
button.
Windows 8:
1. From the Start screen, type c, and then select Control
Panel from the list of applications..
2. Click Internet Options.
3. In the Browsing history section on the General tab,
click the Delete button.
4. Select the Cookies check box and click the Delete
button.
Cannot automatically launch Internet programs.
Cause Solution
You must log on to your ISP before some programs will start. Log on to your ISP and launch the desired program.
Solving Software Problems
Most software problems occur as a result of the following:
●The application was not installed or configured correctly.
●There is insufficient memory available to run the application.
●There is a conflict between applications.
●Be sure that all the needed device drivers have been installed.
●If you have installed an operating system other than the factory-installed operating system, check
to be sure it is supported on the system.
If you encounter software problems, see the applicable solutions listed in the following table.
182 Chapter 8 Troubleshooting Without Diagnostics
Computer will not continue and the HP logo does not display.
Cause Solution
ROM issue - POST error has occurred. Observe the beeps and LED lights on the front of the
computer. See Appendix A, POST Error Messages
on page 187 to determine possible causes.
See the Worldwide Limited Warranty for terms and
conditions.
Computer will not continue after HP logo screen displays.
Cause Solution
System files may be damaged. In Windows 7, use recovery media to scan hard drive for
errors, or use Windows Startup Repair to fix problems that
might prevent Windows from starting correctly. Windows
Startup Repair is one of the recovery tools in the System
Recovery Options menu. You can also create a system repair
disc that contains the System Recovery Options menu. If the
problem is severe enough that Startup Repair doesn't start on
its own and you can't access the System Recovery Options
menu on your computer's hard disk, you can get to the menu
and start Startup Repair by using the Windows installation
disc or a system repair disc that you created earlier.
In Windows 8, use Automatic Repair to fix problems that
might prevent Windows from starting correctly.
To access Automatic Repair:
1. Press the Windows logo + l to open the Settings charm.
2. Select Change PC Settings, select General, and then
under Advanced startup, click Restart now.
3. Select Troubleshoot, select Advanced options, and
then select Automatic Repair.
Windows starts Automatic Repair.
4. Select the account to use to begin Automatic Repair, and
type the password for the account.
Windows diagnoses the computer and attempts the
repair it.
“Illegal Operation has Occurred” error message is displayed.
Cause Solution
Software being used is not Microsoft-certified for your version
of Windows.
Verify that the software is certified by Microsoft for your
version of Windows (see program packaging for this
information).
Configuration files are corrupt. If possible, save all data, close all programs, and restart the
computer.
Solving Software Problems 183
Contacting Customer Support
For help and service, contact an authorized reseller or dealer. To locate a reseller or dealer near you,
visit http://www.hp.com.
NOTE: If you take the computer to an authorized reseller, dealer, or service provider for service,
remember to provide the setup and power-on passwords if they are set.
Refer to the number listed in the warranty or in the Support Telephone Numbers guide for technical
assistance.
184 Chapter 8 Troubleshooting Without Diagnostics
9 HP PC Hardware Diagnostics
To help troubleshoot and diagnose failures, use the UEFI-based hardware diagnostic solution that HP
includes on all products. This tool can even be used if the computer will not boot to the operating
system.
Why run HP PC Hardware Diagnostics – UEFI
The HP PC Hardware Diagnostic tools simplify the process of diagnosing hardware issues and expedite
the support process when issues are found. The tools save time by pinpointing the component that
needs to be replaced.
●Isolate true hardware failures: The diagnostics run outside of the operating system so they
effectively isolate hardware failures from issues that may be caused by the operating system or
other software components.
●Failure ID: When a failure is detected that requires hardware replacement, a 24-digit Failure ID
is generated. This ID can then be provided to the call agent, who will either schedule support or
provide replacement parts.
How to access and run HP PC Hardware Diagnostics
- UEFI
To access the UEFI diagnostics:
1. Restart or turn on the computer and press Esc repeatedly until the BIOS boot menu appears.
2. Press F2 or select Diagnostics (F2).
Why run HP PC Hardware Diagnostics – UEFI 185
After pressing F2, the BIOS sequentially searches three places for the system diagnostics:
a. First – a connected USB drive (to download the diagnostics tools to a USB drive, see the
instructions in Downloading HP PC Hardware Diagnostics to a USB device on page 186).
b. Second – the hard disk drive.
c. Third – in the BIOS, a core set of diagnostics (for memory and hard disk drive) that are
accessible only if the USB or hard disk drive versions are not detected.
Downloading HP PC Hardware Diagnostics to a USB
device
1. Go to http://www.hp.com.
2. Click the Support & Drivers link.
3. Select the Drivers & Software tab.
4. Enter the product name in the text box and click Search.
5. Select your specific computer model.
6. Select your operating system.
7. In the Diagnostic section, click the HP UEFI Support Environment link. This link provides
additional information.
- or -
Click the Download button and select Run. The download includes instructions (in English) on
how to install the tools on the USB device.
NOTE: HP diagnostic solutions are developed to test components typically included on HP products.
They may not diagnose all third-party accessories that can be added to the system.
186 Chapter 9 HP PC Hardware Diagnostics
10 POST Error Messages
This appendix lists the error codes, error messages, and the various indicator light and audible
sequences that you may encounter during Power-On Self-Test (POST) or computer restart, the probable
source of the problem, and steps you can take to resolve the error condition.
POST Message Disabled suppresses most system messages during POST, such as memory count and
non-error text messages. If a POST error occurs, the screen will display the error message. To manually
switch to the POST Messages Enabled mode during POST, press any key (except F10, F11, or F12).
The default mode is POST Message Disabled.
The speed at which the computer loads the operating system and the extent to which it is tested are
determined by the POST mode selection.
Quick Boot is a fast startup process that does not run all of the system level tests, such as the memory
test. Full Boot runs all of the ROM-based system tests and takes longer to complete.
Full Boot may also be enabled to run every 1 to 30 days on a regularly scheduled basis. To establish
the schedule, reconfigure the computer to the Full Boot Every x Days mode, using Computer Setup.
NOTE: For more information on Computer Setup, see Computer Setup (F10) Utility on page 10.
POST Numeric Codes and Text Messages
This section covers those POST errors that have numeric codes associated with them. The section also
includes some text messages that may be encountered during POST.
NOTE: The computer will beep once after a POST text message is displayed on the screen.
Table 10-1 Numeric Codes and Text Messages
Control panel message Description Recommended action
101-Option ROM Checksum Error System ROM or expansion board option
ROM checksum.
1. Verify the correct ROM.
2. Flash the ROM if needed.
3. If an expansion board was recently
added, remove it to see if the problem
remains.
4. Clear CMOS. (See Appendix B,
Password Security and Resetting CMOS
on page 199.)
5. If the message disappears, there may
be a problem with the expansion card.
6. Replace the system board.
POST Numeric Codes and Text Messages 187
Table 10-1 Numeric Codes and Text Messages (continued)
Control panel message Description Recommended action
103-System Board Failure DMA or timers. 1. Clear CMOS. (See Appendix B,
Password Security and Resetting CMOS
on page 199.)
2. Remove expansion boards.
3. Replace the system board.
110-Out of Memory Space for Option ROMs Recently added PCI expansion card contains
an option ROM too large to download
during POST.
1. If a PCI expansion card was recently
added, remove it to see if the problem
remains.
2. In Computer Setup, set Advanced >
Device Options > NIC PXE Option
ROM Download to DISABLE to
prevent PXE option ROM for the internal
NIC from being downloaded during
POST to free more memory for an
expansion card's option ROM. Internal
PXE option ROM is used for booting
from the NIC to a PXE server.
162-System Options Not Set Configuration incorrect.
RTC (real-time clock) battery may need to
be replaced.
Run Computer Setup and check the
configuration in Advanced > Onboard
Devices.
Reset the date and time under Control
Panel. If the problem persists, replace the
RTC battery. See the Removal and
Replacement section for instructions on
installing a new battery, or contact an
authorized dealer or reseller for RTC battery
replacement.
163-Time & Date Not Set Invalid time or date in configuration memory.
RTC (real-time clock) battery may need to
be replaced.
Reset the date and time under Control
Panel (Computer Setup can also be used). If
the problem persists, replace the RTC
battery. See the Removal and Replacement
section for instructions on installing a new
battery, or contact an authorized dealer or
reseller for RTC battery replacement.
163-Time & Date Not Set CMOS jumper may not be properly installed. Check for proper placement of the CMOS
jumper if applicable.
164-MemorySize Error Memory amount has changed since the last
boot (memory added or removed).
Press the F1 key to save the memory
changes.
164-MemorySize Error Memory configuration incorrect. 1. Run Computer Setup or Windows
utilities.
2. Make sure the memory module(s) are
installed properly.
3. If third-party memory has been added,
test using HP-only memory.
4. Verify proper memory module type.
188 Chapter 10 POST Error Messages
Table 10-1 Numeric Codes and Text Messages (continued)
Control panel message Description Recommended action
201-Memory Error RAM failure. 1. Ensure memory modules are correctly
installed.
2. Verify proper memory module type.
3. Remove and replace the identified
faulty memory module(s).
4. If the error persists after replacing
memory modules, replace the system
board.
213-Incompatible Memory Module in
Memory Socket(s) X, X, ...
A memory module in memory socket
identified in the error message is missing
critical SPD information, or is incompatible
with the chipset.
1. Verify proper memory module type.
2. Try another memory socket.
3. Replace DIMM with a module
conforming to the SPD standard.
214-DIMM Configuration Warning Populated DIMM Configuration is not
optimized.
Rearrange the DIMMs so that each channel
has the same amount of memory.
219-ECC Memory Module Detected ECC
Modules not supported on this Platform
Recently added memory module(s) support
ECC memory error correction.
1. If additional memory was recently
added, remove it to see if the problem
remains.
2. Check product documentation for
memory support information.
301-Keyboard Error Keyboard failure. 1. Reconnect keyboard with computer
turned off.
2. Check connector for bent or missing
pins.
3. Ensure that none of the keys are
depressed.
4. Replace keyboard.
303-Keyboard Controller Error I/O board keyboard controller. 1. Reconnect keyboard with computer
turned off.
2. Replace the system board.
304-Keyboard or System Unit Error Keyboard failure. 1. Reconnect the keyboard with computer
turned off.
2. Ensure that none of the keys are
depressed.
3. Replace the keyboard.
4. Replace the system board.
POST Numeric Codes and Text Messages 189
Table 10-1 Numeric Codes and Text Messages (continued)
Control panel message Description Recommended action
501-Display Adapter Failure Graphics display controller. 1. Reseat the graphics card (if applicable).
2. Clear CMOS. (See Appendix B,
Password Security and Resetting CMOS
on page 199.)
3. Verify monitor is attached and turned
on.
4. Replace the graphics card (if possible).
510-Flash Screen Image Corrupted Flash Screen image has errors. Reflash the system ROM with the latest BIOS
image.
511-CPU, CPUA, or CPUB Fan not Detected CPU fan is not connected or may have
malfunctioned.
1. Reseat CPU fan.
2. Reseat fan cable.
3. Replace CPU fan.
512-Chassis, Rear Chassis, or Front Chassis
Fan not Detected
Chassis, rear chassis, or front chassis fan is
not connected or may have malfunctioned.
1. Reseat chassis, rear chassis, or front
chassis fan.
2. Reseat fan cable.
3. Replace chassis, rear chassis, or front
chassis fan.
513-Front Chassis fan not detected Front chassis fan is not connected or may
have malfunctioned.
1. Reseat front chassis fan.
2. Reseat fan cable.
3. Replace front chassis fan.
514-CPU or Chassis Fan not Detected CPU or chassis fan is not connected or may
have malfunctioned.
1. Reseat CPU or chassis fan.
2. Reseat fan cable.
3. Replace CPU or chassis fan.
515-Power Supply fan not detected Power supply fan is not connected or may
have malfunctioned.
1. Reseat power supply fan.
2. Reseat fan cable.
3. Replace power supply fan.
601-Diskette Controller Error Diskette controller circuitry or floppy drive
circuitry incorrect.
1. Check and/or replace cables.
2. Clear CMOS. (See Appendix B,
Password Security and Resetting CMOS
on page 199.)
3. Replace the system board.
605-Diskette Drive Type Error Mismatch in drive type. 1. Disconnect any other diskette controller
devices (tape drives).
2. Clear CMOS. (See Appendix B,
Password Security and Resetting CMOS
on page 199.)
660-Display cache is detected unreliable Integrated graphics controller display cache
is not working properly and will be disabled.
Replace system board if minimal graphics
degrading is an issue.
190 Chapter 10 POST Error Messages
Table 10-1 Numeric Codes and Text Messages (continued)
Control panel message Description Recommended action
912-Computer Cover Has Been Removed
Since Last System Startup
Computer cover was removed since last
system startup.
No action required.
917-Front Audio Not Connected Front audio harness has been detached or
unseated from motherboard.
Reconnect or replace front audio harness.
918-Front USB Not Connected Front USB harness has been detached or
unseated from motherboard.
Reconnect or replace front USB harness.
921-Device in PCI Express slot failed to
initialize
There is an incompatibility/problem with this
device and the system or PCI Express Link
could not be retrained to an x1.
Try rebooting the system. If the error
reoccurs, the device may not work with this
system
1151-Serial Port A Address Conflict Detected Both external and internal serial ports are
assigned to COM1.
1. Remove any serial port expansion
cards.
2. Clear CMOS. (See Appendix B,
Password Security and Resetting CMOS
on page 199.)
3. Reconfigure card resources and/or run
Computer Setup or Windows utilities.
1152-Serial Port B Address Conflict Detected Both external and internal serial ports are
assigned to COM2.
1. Remove any serial port expansion
cards.
2. Clear CMOS. (See Appendix B,
Password Security and Resetting CMOS
on page 199.)
3. Reconfigure card resources and/or run
Computer Setup or Windows utilities.
1155-Serial Port Address Conflict Detected Both external and internal serial ports are
assigned to same IRQ.
1. Remove any serial port expansion
cards.
2. Clear CMOS. (See Appendix B,
Password Security and Resetting CMOS
on page 199.)
3. Reconfigure card resources and/or run
Computer Setup or Windows utilities.
1720-SMART Hard Drive Detects Imminent
Failure
Hard drive is about to fail. (Some hard
drives have a hard drive firmware patch that
will fix an erroneous error message.)
1. Determine if hard drive is giving correct
error message. Enter Computer Setup
and run the Drive Protection System test
under Storage > DPS Self-test.
2. Apply hard drive firmware patch
if applicable. (Available at
http://www.hp.com/support.)
3. Back up contents and replace hard
drive.
1796-SATA Cabling Error One or more SATA devices are improperly
attached. For optimal performance, the
SATA 0 and SATA 1 connectors must be
used before SATA 2 and SATA 3.
Ensure SATA connectors are used in
ascending order. For one device, use SATA
0. For two devices, use SATA 0 and SATA
1. For three devices, use SATA 0, SATA 1,
and SATA 2.
POST Numeric Codes and Text Messages 191
Table 10-1 Numeric Codes and Text Messages (continued)
Control panel message Description Recommended action
1797-SATA Drivelock is not supported in
RAID mode.
Drivelock is enabled on one or more SATA
hard drives, and they cannot be accessed
while the system is configured for RAID
mode.
Either remove the Drivelocked SATA device
or disable the Drivelock feature. To disable
the Drivelock feature, enter Computer Setup,
change Storage > Storage Options >
SATA Emulation to IDE, and select File >
Save Changes and Exit. Reenter
Computer Setup and select Security >
Drivelock Security. For each listed
Drivelock-capable SATA device, ensure
Drivelock is Disabled. Lastly, change
Storage > Storage Options > SATA
Emulation back to RAID and select File >
Save Changes and Exit.
1801-Microcode Patch Error Processor is not supported by ROM BIOS. 1. Upgrade BIOS to proper version.
2. Change the processor.
2200-PMM Allocation Error during MEBx
Download
Memory error during POST execution of the
Management Engine (ME) BIOS Extensions
option ROM.
1. Reboot the computer.
2. Unplug the power cord, re-seat the
memory modules, and reboot the
computer.
3. If the memory configuration was
recently changed, unplug the computer,
restore the original memory
configuration, and reboot the computer.
4. If the error persists, replace the system
board.
2201-MEBx Module did not checksum
correctly
Memory error during POST execution of the
Management Engine (ME) BIOS Extensions
option ROM.
1. Reboot the computer.
2. Unplug the power cord, re-seat the
memory modules, and reboot the
computer.
3. If the memory configuration was
recently changed, unplug the power
cord, restore the original memory
configuration, and reboot the computer.
4. If the error persists, replace the system
board.
2202-PMM Deallocation Error during MEBx
cleanup
Memory error during POST execution of the
Management Engine (ME) BIOS Extensions
option ROM.
1. Reboot the computer.
2. Unplug the power cord, re-seat the
memory modules, and reboot the
computer.
3. If the memory configuration was
recently changed, unplug the power
cord, restore the original memory
configuration, and reboot the computer.
4. If the error persists, replace the system
board.
192 Chapter 10 POST Error Messages
Table 10-1 Numeric Codes and Text Messages (continued)
Control panel message Description Recommended action
2203-Setup error during MEBx execution MEBx selection or exit resulted in a setup
failure.
1. Reboot the computer.
2. Unplug the power cord, re-seat the
memory modules, and reboot the
computer.
3. If the memory configuration was
recently changed, unplug the power
cord, restore the original memory
configuration, and reboot the computer.
4. If the error persists, replace the system
board.
2204-Inventory error during MEBx execution BIOS information passed to the MEBx
resulted in a failure.
1. Reboot the computer.
2. If the error persists, update to the latest
BIOS version.
3. If the error still persists, replace the
system board.
2205-Interface error during MEBx execution MEBx operation experienced a hardware
error during communication with ME.
1. Reboot the computer.
2. If the error persists, update to the latest
BIOS version.
3. If the error still persists, replace the
system board.
2211-Memory not configured correctly for
proper MEBx execution.
DIMM1 or XMM1 is not installed. Make sure there is a memory module in the
black DIMM1 socket and that it is properly
seated.
2212-USB Key Provisioning failure writing to
device
USB device used for USB key provisioning
will not allow BIOS to update provision file
properly.
1. Try a different USB key device for
provisioning.
2. If the error persists, update to the latest
BIOS version and ME firmware version.
3. If the error still persists, replace the
system board.
2217-ME Firmware Version request failure ME firmware is not properly responding to
BIOS query for version information.
1. Reboot the computer.
2. If the error persists, update to the latest
BIOS version and ME firmware version.
3. If the error still persists, replace the
system board.
2218-ME Firmware Version should be
updated
ME firmware must be updated to match
current functionality contained in the system
BIOS.
1. Update to the latest ME firmware
version.
2. If the error persists and system BIOS
has been recently updated, restore
previous system BIOS version.
3. If the error still persists, replace the
system board.
POST Numeric Codes and Text Messages 193
Table 10-1 Numeric Codes and Text Messages (continued)
Control panel message Description Recommended action
2219-USB Key Provisioning file has invalid
header identifier
Provisioning file contained on the USB key
has been corrupted or is not a valid version
for the current ME firmware.
1. Recreate the provisioning file using third
party management console software.
2. If the error persists and system BIOS
has been recently updated, restore
previous system BIOS version.
Otherwise, update the ME firmware
version.
3. If the error still persists, replace the
system board.
2220-USB Key Provisioning file has
mismatch version
Provisioning file contained on the USB key is
not a valid version for the current ME
firmware.
1. Reboot the computer.
2. If the error persists and system BIOS
has been recently updated, restore
previous system BIOS version.
Otherwise, update the ME firmware
version.
3. If the error still persists, replace the
system board.
2230-General error during MEBx execution Error occurred during MEBx execution which
fails into the “General” grouping. Status
information displayed along with the error
provides further clarity into the failure. MEBx
handles transference of information between
the system BIOS and ME firmware.
1. Reboot the computer.
2. If the error persists, update to the latest
BIOS version and ME firmware version.
3. If the error still persists, replace the
system board.
2231-ME error during MEBx execution Error occurred during MEBx execution which
fails into “ME” grouping.
1. Reboot the computer.
2. If the error persists, update to the latest
BIOS version and ME firmware version.
3. If the error still persists, replace the
system board.
2232-AMT error during MEBx execution Error occurred during MEBx execution which
fails into “AMT” grouping.
1. Reboot the computer.
2. If the error persists, update to the latest
BIOS version and ME firmware version.
3. If the error still persists, replace the
system board.
2233-HECI error during MEBx execution Error occurred during MEBx execution which
fails into “MEI or HECI” grouping.
1. Reboot the computer.
2. If the error persists, update to the latest
BIOS version and ME firmware version.
3. If the error still persists, replace the
system board.
2239-ME image lock failure Special system configurations with reduced
ME firmware image require BIOS control of
ME firmware upgrading. A failure has
occurred after the ME firmware update
process in which the BIOS could not relock
the ME firmware region.
1. Reboot the computer.
2. If the error persists, update to the latest
BIOS version and ME firmware version.
3. If the error still persists, replace the
system board.
194 Chapter 10 POST Error Messages
Table 10-1 Numeric Codes and Text Messages (continued)
Control panel message Description Recommended action
2240-ME image unlock failure Special system configurations with reduced
ME firmware image require BIOS control of
ME firmware upgrading. A failure has
occurred prior to the ME firmware update
process in which the BIOS could not unlock
the ME firmware region.
1. Reboot the computer.
2. If the error persists, update to the latest
BIOS version and ME firmware version.
3. If the error still persists, replace the
system board.
Invalid Electronic Serial Number Electronic serial number is missing. Enter the correct serial number in Computer
Setup.
Network Server Mode Active and No
Keyboard Attached
Keyboard failure while Network Server
Mode enabled.
1. Reconnect keyboard with computer
turned off.
2. Check connector for bent or missing
pins.
3. Ensure that none of the keys are
depressed.
4. Replace keyboard.
Parity Check 2 Parity RAM failure. Run Computer Setup and Diagnostic utilities.
Interpreting POST Diagnostic Front Panel LEDs and
Audible Codes
This section covers the front panel LED codes as well as the audible codes that may occur before or
during POST that do not necessarily have an error code or text message associated with them.
WARNING! When the computer is plugged into an AC power source, voltage is always applied to
the system board. To reduce the risk of personal injury from electrical shock and/or hot surfaces, be
sure to disconnect the power cord from the wall outlet and allow the internal system components to cool
before touching.
NOTE: If you see flashing LEDs on a PS/2 keyboard, look for flashing LEDs on the front panel of the
computer and refer to the following table to determine the front panel LED codes.
Recommended actions in the following table are listed in the order in which they should be performed.
Not all diagnostic lights and audible codes are available on all models.
Table 10-2 Diagnostic Front Panel LEDs and Audible Codes
Activity Beeps Possible Cause Recommended Action
Green Power LED On. None Computer on. None
Green Power LED flashes every
two seconds.
None Computer in Suspend to
RAM mode (some models
only) or normal Suspend
mode.
None required. Press any key or move the mouse
to wake the computer.
Interpreting POST Diagnostic Front Panel LEDs and Audible Codes 195
Table 10-2 Diagnostic Front Panel LEDs and Audible Codes (continued)
Activity Beeps Possible Cause Recommended Action
Red Power LED flashes two
times, once every second,
followed by a two second
pause. Beeps stop after fifth
iteration but LEDs continue until
problem is solved.
2 Processor thermal
protection activated:
A fan may be blocked or
not turning.
OR
The heat sink/fan
assembly is not properly
attached to the processor.
1. Ensure that the computer air vents are not
blocked and the processor cooling fan is
running.
2. Open hood, press power button, and see if
the processor fan spins. If the processor fan
is not spinning, make sure the fan's cable is
plugged onto the system board header.
3. If fan is plugged in, but is not spinning, then
replace heat sink/fan assembly.
4. Contact an authorized reseller or service
provider.
Red Power LED flashes three
times, once every second,
followed by a two second
pause. Beeps stop after fifth
iteration but LEDs continue until
problem is solved.
3 Processor not installed (not
an indicator of bad
processor).
1. Check to see that the processor is present.
2. Reseat the processor.
Red Power LED flashes four
times, once every second,
followed by a two second
pause. Beeps stop after fifth
iteration but LEDs continue until
problem is solved.
4 Power failure (power
supply is overloaded).
1. Open the hood and ensure the 4 or 6-wire
power supply cable is seated into the
connector on the system board.
2. Check if a device is causing the problem by
removing ALL attached devices (such as hard
or optical drives and expansion cards).
Power on the system. If the system enters the
POST, then power off and replace one
device at a time and repeat this procedure
until failure occurs. Replace the device that is
causing the failure. Continue adding devices
one at a time to ensure all devices are
functioning properly.
3. Replace the power supply.
4. Replace the system board.
Red Power LED flashes five
times, once every second,
followed by a two second
pause. Beeps stop after fifth
iteration but LEDs continue until
problem is solved.
5 Pre-video memory error. CAUTION: To avoid damage to the DIMMs or
the system board, you must unplug the computer
power cord before attempting to reseat, install, or
remove a DIMM module.
1. Reseat DIMMs.
2. Replace DIMMs one at a time to isolate the
faulty module.
3. Replace third-party memory with HP
memory.
4. Replace the system board.
196 Chapter 10 POST Error Messages
Table 10-2 Diagnostic Front Panel LEDs and Audible Codes (continued)
Activity Beeps Possible Cause Recommended Action
Red Power LED flashes six
times, once every second,
followed by a two second
pause. Beeps stop after fifth
iteration but LEDs continue until
problem is solved.
6 Pre-video graphics error. For systems with a graphics card:
1. Reseat the graphics card.
2. Replace the graphics card.
3. Replace the system board.
For systems with integrated graphics, replace the
system board.
Red Power LED flashes seven
times, once every second,
followed by a two second
pause. Beeps stop after fifth
iteration but LEDs continue until
problem is solved.
7 System board failure
(ROM detected failure
prior to video).
Replace the system board.
Red Power LED flashes eight
times, once every second,
followed by a two second
pause. Beeps stop after fifth
iteration but LEDs continue until
problem is solved.
8 Invalid ROM based on
bad checksum.
1. Reflash the system ROM with the latest BIOS
image.
2. Replace the system board.
Red Power LED flashes nine
times, once every second,
followed by a two second
pause. Beeps stop after fifth
iteration but LEDs continue until
problem is solved.
9 System powers on but is
unable to boot.
1. Check that the voltage selector, located on
the rear of the power supply (some models),
is set to the appropriate voltage. Proper
voltage setting depends on your region.
2. Unplug the AC power cord from the
computer, wait 30 seconds, then plug the
power cord back in to the computer.
3. Replace the system board.
4. Replace the processor.
Red Power LED flashes ten
times, once every second,
followed by a two second
pause. Beeps stop after fifth
iteration but LEDs continue until
problem is solved.
10 Bad option card. 1. Check each option card by removing the
card (one at a time if multiple cards), then
power on the system to see if fault goes
away.
2. Once a bad card is identified, remove and
replace the bad option card.
3. Replace the system board.
Interpreting POST Diagnostic Front Panel LEDs and Audible Codes 197
Table 10-2 Diagnostic Front Panel LEDs and Audible Codes (continued)
Activity Beeps Possible Cause Recommended Action
Red Power LED flashes eleven
times, once every second,
followed by a two second
pause. Beeps stop after fifth
iteration but LEDs continue until
problem is solved.
11 The current processor does
not support a feature
previously enabled on this
system.
1. Install a TXT capable processor.
2. Disable TXT in the Computer Setup (F10)
utility.
3. Reinstall the original processor.
System does not power on and
LEDs are not flashing.
None System unable to power
on.
Press and hold the power button for less than 4
seconds. If the hard drive LED turns green, the
power button is working correctly. Try the
following:
1. Check that the voltage selector (some
models), located on the rear of the power
supply, is set to the appropriate voltage.
Proper voltage setting depends on your
region.
2. Replace the system board.
OR
Press and hold the power button for less than 4
seconds. If the hard drive LED does not turn on
green then:
1. Check that the unit is plugged into a
working AC outlet.
2. Open hood and check that the power button
harness is properly connected to the system
board.
3. Check that both power supply cables are
properly connected to the system board.
4. Check to see if the 5V_aux light on the
system board is turned on. If it is turned on,
then replace the power button harness. If the
problem persists, replace the system board.
5. If the 5V_aux light on the system board is
not turned on, remove the expansion cards
one at a time until the 5V_aux light on the
system board turns on. It the problem
persists, replace the power supply.
198 Chapter 10 POST Error Messages
11 Password Security and Resetting
CMOS
This computer supports security password features, which can be established through the Computer
Setup Utilities menu.
This computer supports two security password features that are established through the Computer Setup
Utilities menu: setup password and power-on password. When you establish only a setup password,
any user can access all the information on the computer except Computer Setup. When you establish
only a power-on password, the power-on password is required to access Computer Setup and any
other information on the computer. When you establish both passwords, only the setup password will
give you access to Computer Setup.
When both passwords are set, the setup password can also be used in place of the power-on
password as an override to log in to the computer. This is a useful feature for a network administrator.
If you forget the password for the computer, you can clear that password so you can gain access to the
information on the computer by resetting the password jumper.
CAUTION: Pushing the CMOS button will reset CMOS values to factory defaults. It is important to
back up the computer CMOS settings before resetting them in case they are needed later. Back up is
easily done through Computer Setup. See Computer Setup (F10) Utility on page 10 for information on
backing up the CMOS settings.
Resetting the Password Jumper
CAUTION: If you enable the stringent security feature in Computer Setup and you forget the setup
password or the power-on password, the computer is inaccessible and can no longer be used.
Enabling the stringent password disables the ability to reset the password by moving the jumper on the
system board.
If you lose or forget the password, the system board must be replaced. This scenario is not covered
under warranty.
To prevent the computer from becoming permanently unusable, record your configured setup password
or power-on password in a safe place away from your computer. Without these passwords, the
computer cannot be unlocked.
Resetting the Password Jumper 199
To disable the power-on or setup password features, or to clear the power-on or setup passwords,
complete the following steps:
1. Shut down the operating system properly, then turn off the computer and any external devices,
and disconnect the power cord from the power outlet.
2. With the power cord disconnected, press the power button again to drain the system of any
residual power.
WARNING! To reduce the risk of personal injury from electrical shock and/or hot surfaces, be
sure to disconnect the power cord from the wall outlet, and allow the internal system components
to cool before touching.
CAUTION: When the computer is plugged in, the power supply always has voltage applied to
the system board even when the unit is turned off. Failure to disconnect the power cord can result
in damage to the system.
Static electricity can damage the electronic components of the computer or optional equipment.
Before beginning these procedures, ensure that you are discharged of static electricity by briefly
touching a grounded metal object. See the Safety & Regulatory Information guide for more
information.
3. Remove the access panel.
4. Locate the header and jumper.
NOTE: The password jumper is green so that it can be easily identified. For assistance locating
the password jumper and other system board components, see the Illustrated Parts & Service Map
(IPSM). The IPSM can be downloaded from http://www.hp.com/support.
5. Remove the jumper from pins 1 and 2. Place the jumper on either pin 1 or 2, but not both, so that
it does not get lost.
6. Replace the computer cover or access panel.
7. Reconnect the external equipment.
8. Plug in the computer and turn on power. Allow the operating system to start. This clears the current
passwords and disables the password features.
9. To establish new passwords, repeat steps 1 through 4, replace the password jumper on pins 1
and 2, then repeat steps 6 through 8. Establish the new passwords in Computer Setup.
Clearing and Resetting the CMOS
The computer’s configuration memory (CMOS) stores information about the computer’s configuration.
The CMOS button resets CMOS but does not clear the power-on and setup passwords.
Clearing CMOS will clear the Active Management Technology (AMT) settings in the Management
Engine BIOS Extension (MEBx), including the password. The password will default to “admin” and will
200 Chapter 11 Password Security and Resetting CMOS
need to be reset. The AMT settings will also need to be reset. To access the MEBx, press Ctrl+P during
POST.
1. Turn off the computer and any external devices, and disconnect the power cord from the power
outlet.
2. Disconnect the keyboard, monitor, and any other external equipment connected to the computer.
WARNING! To reduce the risk of personal injury from electrical shock and/or hot surfaces, be
sure to disconnect the power cord from the wall outlet, and allow the internal system components
to cool before touching.
CAUTION: When the computer is plugged in, the power supply always has voltage applied to
the system board even when the unit is turned off. Failure to disconnect the power cord can result
in damage to the system.
Static electricity can damage the electronic components of the computer or optional equipment.
Before beginning these procedures, ensure that you are discharged of static electricity by briefly
touching a grounded metal object. See the Safety & Regulatory Information guide for more
information.
3. Remove the computer cover or access panel.
CAUTION: Pushing the CMOS button will reset CMOS values to factory defaults. It is important
to back up the computer CMOS settings before resetting them in case they are needed later. Back
up is easily done through Computer Setup. See Computer Setup (F10) Utility on page 10 for
information on backing up the CMOS settings.
4. Locate, press, and hold the CMOS button in for five seconds.
NOTE: Make sure you have disconnected the AC power cord from the wall outlet. The CMOS
button will not clear CMOS if the power cord is connected.
Figure 11-1 CMOS button
NOTE: For assistance locating the CMOS button and other system board components, see the
Illustrated Parts & Service Map (IPSM).
Clearing and Resetting the CMOS 201
5. Replace the computer cover or access panel.
6. Reconnect the external devices.
7. Plug in the computer and turn on power.
NOTE: You will receive POST error messages after clearing CMOS and rebooting advising you
that configuration changes have occurred. Use Computer Setup to reset any special system setups
along with the date and time.
For instructions on Computer Setup, see Computer Setup (F10) Utility on page 10.
202 Chapter 11 Password Security and Resetting CMOS
12 Backup and Recovery
Restoring and recovering in Windows 7
To protect from loss or damage, back up your personal data files. Refer to the operating system or
backup utility documentation for instructions on making backup copies of your data files.
To protect the software from loss or damage, keep a backup copy of all system software, applications,
and related files stored on the hard drive.
If you cannot create system recovery CDs or DVDs, you can order a recovery disk set from support. To
obtain the support telephone number for your region, see http://www.hp.com/support/contactHP.
System Restore
If you have a problem that might be due to software that you installed on your computer, use System
Restore to return the computer to a previous restore point. You can also set restore points manually.
NOTE: Always use this System Restore procedure before you use the System Recovery feature.
NOTE: Some features might not be available on systems that are shipped without a Windows
operating system.
To start System Restore:
1. Close all open programs.
2. Click the Start button, right-click Computer, and then click Properties.
3. Click System protection, System Restore, click Next, and then follow the on-screen
instructions.
To add restore points manually:
1. Close all open programs.
2. Click the Start button, right-click Computer, click Properties, and then click System
protection.
3. Under Protection Settings, select the disk for which you want to create a restore point.
4. Click Create, and then follow the on-screen instructions.
System Recovery
WARNING! This procedure will delete all user information. To prevent loss of information, be sure to
back up all user information so you can restore it after recovery.
System Recovery completely erases and reformats the hard disk drive, deleting all data files that you
have created, and then reinstalls the operating system, programs, and drivers. However, you must
reinstall any software that was not installed on the computer at the factory. This includes software that
Restoring and recovering in Windows 7 203
came on media included in the computer accessory box, and any software programs you installed after
purchase.
NOTE: Always use the System Restore procedure before you use the System Recovery program. See
System Restore on page 203.
NOTE: Some features might not be available on systems that are shipped without a Windows
operating system.
You must choose one of the following methods to perform a System Recovery:
●Recovery image — Run System Recovery from a recovery image stored on your hard disk drive.
The recovery image is a file that contains a copy of the original factory-shipped software. To
perform a System Recovery from a recovery image, see System Recovery when Windows is
responding on page 204 or System Recovery when Windows is not responding on page 205.
●Recovery media — Run System Recovery from recovery media that you have created from files
stored on your hard disk drive or purchased separately. To create recovery media, see System
recovery using recovery media on page 205.
System Recovery when Windows is responding
CAUTION: System Recovery deletes all data and programs you created or installed. Before you
begin, back up any important data to a CD or DVD or to a USB flash drive.
NOTE: In some cases, you must use recovery media for this procedure. To create this media, follow
the instructions in Creating recovery media on page 206.
If the computer is working and Windows 7 is responding, use these steps to perform a System
Recovery.
1. Turn off the computer.
2. Disconnect all peripheral devices from the computer except the monitor, keyboard, and mouse.
3. Turn on the computer.
4. When Windows has loaded, click the Start button, click All Programs, click Security and
Protection, click Recovery Manager, and then click Recovery Manager. If prompted,
click Yes to allow the program to continue.
5. Under I need help immediately, click System Recovery.
6. Select Yes, and then click Next. Your computer restarts.
NOTE: If your system does not detect a recovery partition, it prompts you to insert recovery
media that you have created. Insert the first disc or the USB flash drive, select Yes, and then click
Next to restart the computer. If you are using discs, insert the next disc when prompted.
7. When the computer restarts, you will see the Recovery Manager welcome screen again. Under I
need help immediately, click System Recovery. If you are prompted to back up your files,
and you have not done so, select Back up your files first (recommended), and then click
Next. Otherwise, select Recover without backing up your files, and then click Next.
8. System Recovery begins. After System Recovery is complete, click Finish to restart the computer.
9. When Windows has loaded, shut down the computer, reconnect all peripheral devices, and then
turn the computer back on.
204 Chapter 12 Backup and Recovery
System Recovery when Windows is not responding
CAUTION: System Recovery deletes all data and programs you created or installed.
If Windows is not responding, but the computer is working, follow these steps to perform a System
Recovery.
1. Turn off the computer. If necessary, press and hold the power button until the computer turns off.
2. Disconnect all peripheral devices from the computer, except the monitor, keyboard, and mouse.
3. Press the power button to turn on the computer.
4. As soon as you see the HP logo screen, repeatedly press the F11 key on your keyboard until the
Windows is Loading Files… message appears on the screen.
5. Under I need help immediately, click System Recovery.
6. If you are prompted to back up your files, and you have not done so, select Back up your files
first (recommended), and then click Next. Otherwise, select Recover without backing
up your files, and then click Next.
7. System Recovery begins. After System Recovery is complete, click Finish to restart the computer.
8. When Windows has loaded, shut down the computer, reconnect all peripheral devices, and then
turn the computer back on.
System recovery using recovery media
You should create a set of recovery media, either a set of DVDs or a USB flash drive, from the recovery
image stored on your hard disk drive. This image contains the operating system and software program
files that were originally installed on your computer at the factory. You can create only one set of
recovery media for your computer, and the media can be used only with this computer. Store the
recovery media in a safe place.
NOTE: Some features might not be available on systems that are shipped without a Windows
operating system.
●To create recovery discs, your computer must have a DVD writer, and you must use only high-
quality blank DVD+R or DVD-R discs.
NOTE: You cannot use DVD+RW, DVD-RW, DVD+RW DL, DVD-RW DL, DVD+R DL, or DVD-R
DL discs to create recovery discs.
●You have the option of creating a recovery USB flash drive instead, using a high-quality USB
drive.
●If you are creating recovery discs, be sure to use high-quality discs. It is normal for the system to
reject defective discs. You will be prompted to insert a new blank disc to try again.
●The number of discs in the recovery-disc set depends on your computer model (typically 3 to 6
DVDs). The Recovery Media Creation program tells you the specific number of blank discs needed
to make the set. If you are using a USB flash drive, the program will tell you the size of the drive
required to store all the data (minimum of 8 GB).
NOTE: The process of creating recovery media is lengthy. You can quit the process at any time.
The next time you initiate the process, it resumes where it left off.
Restoring and recovering in Windows 7 205
Creating recovery media
To create recovery discs:
1. Close all open programs.
2. Click the Start button, click All Programs, click Security and Protection, and then click HP
Recovery Media Creation. If prompted, click Yes to allow the program to continue.
3. Click Create recovery media using blank DVD(s), and then click Next.
4. Follow the on-screen instructions. Label each disc as you make it (for example, Recovery 1,
Recovery 2), and then store the discs in a secure place.
To create a recovery USB flash drive:
NOTE: You must use a flash drive with a capacity of at least 8 GB.
1. Close all open programs.
2. Insert the USB flash drive into a USB port on the computer.
3. Click the Start button, click All Programs, click Security and Protection, and then click
Recovery Media Creation.
4. Click Create recovery media with a USB flash drive, and then click Next.
5. Select the USB flash drive from the list of media. The program will let you know how much storage
is required to create the recovery drive. If the USB flash drive does not have enough storage
capacity, it will appear grayed out, and you must replace it with a larger USB flash drive. Click
Next.
NOTE: Recovery Media Creation formats the flash drive, deleting any files on it.
6. Follow the on-screen instructions. When the process is complete, label the USB flash drive and
store it in a secure place.
NOTE: Do not use media cards for creating recovery media. The system may not be able to boot up
from a media card and you may not be able to run system recovery.
206 Chapter 12 Backup and Recovery
Using recovery media
CAUTION: System Recovery deletes all data and programs you have created or installed. Back up
any important data to a CD or DVD or to a USB flash drive.
To create recovery media, see System recovery using recovery media on page 205.
To perform a System Recovery using recovery media:
1. If using a set of DVDs, insert the first recovery disc into the DVD drive tray, and close the tray. If
you are using a recovery USB flash drive, insert it into a USB port.
2. If the computer is not responding, press and hold the power button for approximately 5 seconds or
until the computer turns off.
or
Click the Start button, and then click Shut Down.
3. Disconnect all peripheral devices from the computer except the monitor, keyboard, and mouse.
4. Press the power button to turn on the computer.
5. Press Esc as the computer is powering on to see the startup menu. Use the arrow keys to select the
boot menu and press Enter. Use the arrow keys to select the location where the recovery media is
inserted (USB or DVD). Press Enter to boot from that device.
6. If Recovery Manager asks if you want to run System Recovery from Media or Hard Drive, select
Media. On the Welcome screen, under I need help immediately, click Factory Reset.
7. If you are prompted to back up your files, and you have not done so, select Back up your files
first (recommended), and then click Next. Otherwise, select Recover without backing
up your files, and then click Next.
8. If you are prompted to insert the next recovery disc, do so.
9. When Recovery Manager is finished, remove the recovery disc or the recovery USB flash drive
from the system.
10. Click Finish to restart the computer.
Backup and recovery in Windows 8
To protect your information, use Windows Backup and Restore to back up individual files and folders,
back up your entire hard drive, create system repair media, or create system restore points. In case of
system failure, you can use the backup files to restore the contents of your computer.
From the Start screen, type restore, click Settings, and then select from the list of displayed options.
NOTE: For detailed instructions on various backup and restore options, perform a search for these
topics in Help and Support. From the Start screen, type h, and then select Help and Support.
In case of system instability, HP recommends that you print the recovery procedures and save them for
later use.
Backup and recovery in Windows 8 207
NOTE: Windows includes the User Account Control feature to improve the security of your computer.
You may be prompted for your permission or password for tasks such as installing software, running
utilities, or changing Windows settings. Refer to Help and Support for more information. From the Start
screen, type h, and then select Help and Support.
Backing up your information
Recovery after a system failure is as good as your most recent backup. You should create system repair
media and your initial backup immediately after initial system setup. As you add new software and
data files, you should continue to back up your system on a regular basis to maintain a reasonably
current backup. The system repair media is used to start up (boot) the computer and repair the
operating system in case of system instability or failure. Your initial and subsequent backups allow you
to restore your data and settings if a failure occurs.
Type backup on the Start screen, click Settings, and then select Save backup copies of your
files with File History.
You can back up your information to an optional external hard drive, or a network drive.
Note the following when backing up:
●Store personal files in the Documents library, and back it up regularly.
●Back up templates that are stored in their associated programs.
●Save customized settings that appear in a window, toolbar, or menu bar by taking a screen shot
of your settings. The screen shot can be a time-saver if you have to reset your preferences.
To create a backup using Backup and Restore:
NOTE: Be sure that the computer is connected to AC power before you start the backup process.
NOTE: The backup process may take over an hour, depending on file size and the speed of the
computer.
1. From the Start screen, type backup, click Settings, and then select from the list of displayed
options.
2. Follow the on-screen instructions to set up your backup, create a system image, or create system
repair media.
Performing a system recovery
In case of system failure or instability, the computer provides the following tools to recover your files:
●Windows recovery tools: You can use Windows Backup and Restore to recover information you
have previously backed up. You can also use Windows Automatic Repair to fix problems that
might prevent Windows from starting correctly.
●f11 recovery tools: You can use the f11 recovery tools to recover your original hard drive image.
The image includes the Windows operating system and software programs installed at the factory.
NOTE: If you are unable to boot (start up) your computer and you cannot use the system repair
media you previously created, you must purchase Windows 8 operating system media to reboot the
computer and repair the operating system. For additional information, see Using Windows 8 operating
system media (purchased separately) on page 210.
208 Chapter 12 Backup and Recovery
Using the Windows recovery tools
To recover information you previously backed up:
▲From the Start screen, type h, and then select Help and Support.
To recover your information using Automatic Repair, follow these steps:
CAUTION: Some Automatic Repair options will completely erase and reformat the hard drive. For
additional information go to Help and Support. From the Start screen, type h, and then select Help
and Support.
1. If possible, back up all personal files.
2. If possible, check for the presence of the HP Recovery partition and the Windows partition:
From the Start screen, type e, and then click Windows Explorer.
– or –
From the Start screen, type c, and then select Computer.
NOTE: If the Windows partition and the HP Recovery partition are not listed, you must recover
your operating system and programs using the Windows 8 operating system media and the Driver
Recovery media (both purchased separately). For additional information, see Using Windows 8
operating system media (purchased separately) on page 210.
3. If the Windows partition and the HP Recovery partition are listed, restart the computer after
Windows has loaded, and then press and hold Shift while clicking Restart.
NOTE: If the computer fails to boot to Windows after several attempts, the system will boot to
the Windows Recovery Environment by default.
4. Select Troubleshoot, select Advanced Options, and then select Automatic Repair.
5. Follow the on-screen instructions.
NOTE: For additional information on recovering information using the Windows tools, perform a
search for these topics in Help and Support. From the Start screen, type h, and then select Help and
Support.
Using f11 recovery tools
CAUTION: Using f11 completely erases hard drive contents and reformats the hard drive. All files
that you have created and any software that you have installed on the computer are permanently
removed. The f11 recovery tool reinstalls the operating system and HP programs and drivers that were
installed at the factory. Software not installed at the factory must be reinstalled.
Backup and recovery in Windows 8 209
To recover the original hard drive image using f11:
1. If possible, back up all personal files.
2. If possible, check for the presence of the HP Recovery partition: From the Start screen, type C, and
then select Computer.
NOTE: If the HP Recovery partition is not listed, you must recover your operating system and
programs using the Windows 8 operating system media, and the Driver Recovery media (both
purchased separately). For additional information, see Using Windows 8 operating system media
(purchased separately) on page 210.
3. If the HP Recovery partition is listed, restart the computer, and then press esc while the company
logo is displayed. The computer Startup Menu displays.
4. Press f11 to select the System Recovery option.
5. Follow the on-screen instructions.
Using Windows 8 operating system media (purchased separately)
To order Windows 8 operating system media, go to http://www.hp.com/support, select your country
or region, and follow the on-screen instructions. You can also order the media by calling support.
CAUTION: Using Windows 8 operating system media completely erases hard drive contents and
reformats the hard drive. All files that you have created and any software that you have installed on the
computer are permanently removed. When reformatting is complete, the recovery process helps you
restore the operating system, as well as drivers, software, and utilities.
To initiate recovery using Windows 8 operating system media:
NOTE: This process takes several minutes.
1. If possible, back up all personal files.
2. Restart the computer, and then follow the instructions provided with the Windows 8 operating
system media to install the operating system.
3. When prompted, press any keyboard key.
4. Follow the on-screen instructions.
After the repair is completed:
1. Remove the Windows 8 operating system media, and then insert the Driver Recovery media.
2. Install the Hardware Enabling Drivers first, and then install Recommended Applications.
210 Chapter 12 Backup and Recovery
A Battery Replacement
The battery that comes with the computer provides power to the real-time clock. When replacing the
battery, use a battery equivalent to the battery originally installed in the computer. The computer comes
with a 3-volt lithium coin cell battery.
WARNING! The computer contains an internal lithium manganese dioxide battery. There is a risk of
fire and burns if the battery is not handled properly. To reduce the risk of personal injury:
Do not attempt to recharge the battery.
Do not expose to temperatures higher than 60°C (140ºF).
Do not disassemble, crush, puncture, short external contacts, or dispose of in fire or water.
Replace the battery only with the HP spare designated for this product.
CAUTION: Before replacing the battery, it is important to back up the computer CMOS settings.
When the battery is removed or replaced, the CMOS settings will be cleared.
Static electricity can damage the electronic components of the computer or optional equipment. Before
beginning these procedures, ensure that you are discharged of static electricity by briefly touching a
grounded metal object.
NOTE: The lifetime of the lithium battery can be extended by plugging the computer into a live AC
wall socket. The lithium battery is only used when the computer is NOT connected to AC power.
HP encourages customers to recycle used electronic hardware, HP original print cartridges, and
rechargeable batteries. For more information about recycling programs, go to http://www.hp.com/
recycle.
1. Remove/disengage any security devices that prohibit opening the computer.
2. Remove all removable media, such as compact discs or USB flash drives, from the computer.
3. Turn off the computer properly through the operating system, then turn off any external devices.
4. Disconnect the power cord from the power outlet and disconnect any external devices.
CAUTION: Regardless of the power-on state, voltage is always present on the system board as
long as the system is plugged into an active AC outlet. You must disconnect the power cord to
avoid damage to the internal components of the computer.
5. Remove the computer access panel.
6. Locate the battery and battery holder on the system board.
NOTE: On some computer models, it may be necessary to remove an internal component to
gain access to the battery.
211
7. Depending on the type of battery holder on the system board, complete the following instructions
to replace the battery.
Type 1
a. Lift the battery out of its holder.
Figure A-1 Removing a Coin Cell Battery (Type 1)
b. Slide the replacement battery into position, positive side up. The battery holder automatically
secures the battery in the proper position.
Type 2
a. To release the battery from its holder, squeeze the metal clamp that extends above one edge
of the battery. When the battery pops up, lift it out (1).
b. To insert the new battery, slide one edge of the replacement battery under the holder’s lip
with the positive side up. Push the other edge down until the clamp snaps over the other edge
of the battery (2).
Figure A-2 Removing and Replacing a Coin Cell Battery (Type 2)
Type 3
a. Pull back on the clip (1) that is holding the battery in place, and remove the battery (2).
212 Appendix A Battery Replacement
b. Insert the new battery and position the clip back into place.
Figure A-3 Removing a Coin Cell Battery (Type 3)
Type 4
a. To release the battery from its holder, insert a pointed tool in the slot to loosen the battery (1).
When the battery pops up, slide it out from under the holder, and lift it out (2).
b. To insert the new battery, slide one edge of the replacement battery under the holder’s lip
with the positive side up. Push the other edge down until the clamp snaps over the other edge
of the battery.
Figure A-4 Removing and Replacing a Coin Cell Battery (Type 4)
NOTE: After the battery has been replaced, use the following steps to complete this procedure.
8. Replace the computer access panel.
9. Plug in the computer and turn on power to the computer.
10. Reset the date and time, your passwords, and any special system setups using Computer Setup.
11. Lock any security devices that were disengaged when the computer access panel was removed.
213
B Power Cord Set Requirements
The power supplies on some computers have external power switches. The voltage select switch feature
on the computer permits it to operate from any line voltage between 100-120 or 220-240 volts AC.
Power supplies on those computers that do not have external power switches are equipped with
internal switches that sense the incoming voltage and automatically switch to the proper voltage.
The power cord set received with the computer meets the requirements for use in the country where you
purchased the equipment.
Power cord sets for use in other countries must meet the requirements of the country where you use the
computer.
General Requirements
The requirements listed below are applicable to all countries:
1. The power cord must be approved by an acceptable accredited agency responsible for evaluation
in the country where the power cord set will be installed.
2. The power cord set must have a minimum current capacity of 10A (7A Japan only) and a nominal
voltage rating of 125 or 250 volts AC, as required by each country’s power system.
3. The diameter of the wire must be a minimum of 0.75 mm
2
or 18AWG, and the length of the cord
must be between 1.8 m (6 feet) and 3.6 m (12 feet).
The power cord should be routed so that it is not likely to be walked on or pinched by items placed
upon it or against it. Particular attention should be paid to the plug, electrical outlet, and the point
where the cord exits from the product.
WARNING! Do not operate this product with a damaged power cord set. If the power cord set is
damaged in any manner, replace it immediately.
Japanese Power Cord Requirements
For use in Japan, use only the power cord received with this product.
CAUTION: Do not use the power cord received with this product on any other products.
214 Appendix B Power Cord Set Requirements
Country-Specific Requirements
Additional requirements specific to a country are shown in parentheses and explained below.
Country Accrediting Agency Country Accrediting Agency
Australia (1)
Austria (1)
Belgium (1)
Canada (2)
EANSW
OVE
CEBC
CSA
Italy (1)
Japan (3)
Norway (1)
Sweden (1)
IMQ
METI
NEMKO
SEMKO
Denmark (1)
Finland (1)
France (1)
Germany (1)
DEMKO
SETI
UTE
VDE
Switzerland (1)
United Kingdom (1)
United States (2)
SEV
BSI
UL
1. The flexible cord must be Type HO5VV-F, 3-conductor, 0.75mm
2
conductor size. Power cord set fittings (appliance
coupler and wall plug) must bear the certification mark of the agency responsible for evaluation in the country where it
will be used.
2. The flexible cord must be Type SVT or equivalent, No. 18 AWG, 3-conductor. The wall plug must be a two-pole
grounding type with a NEMA 5-15P (15A, 125V) or NEMA 6-15P (15A, 250V) configuration.
3. Appliance coupler, flexible cord, and wall plug must bear a “T” mark and registration number in accordance with the
Japanese Dentori Law. Flexible cord must be Type VCT or VCTF, 3-conductor, 0.75 mm
2
conductor size. Wall plug must
be a two-pole grounding type with a Japanese Industrial Standard C8303 (7A, 125V) configuration.
Country-Specific Requirements 215
C Specifications
MT Specifications
Table C-1 Specifications
Chassis
Height
Width
Depth
14.9 in
7.0 in
17.0 in
37.7 cm
17.7 cm
43.1 cm
Approximate Weight 20.5 lb 9.3 kg
Temperature Range
Operating
Nonoperating
50° to 95°F
-22° to 140°F
10° to 35°C
-30° to 60°C
NOTE: Operating temperature is derated 1.0° C per 300 m (1000 ft) to 3000 m (10,000 ft) above sea level; no
direct sustained sunlight. Maximum rate of change is 10° C/Hr. The upper limit may be limited by the type and
number of options installed.
Relative Humidity (noncondensing)
Operating
Nonoperating (38.7°C max wet bulb)
10-90%
5-95%
10-90%
5-95%
Maximum Altitude (unpressurized)
Operating
Nonoperating
10,000 ft
30,000 ft
3048 m
9144 m
Power Supply
Operating Voltage Range
Rated Voltage Range
1
Rated Line Frequency
Operating Line Frequency
90-264 VAC
100-240 VAC
50-60 Hz
47-63 Hz
Standard Efficiency
High Efficiency
320W
320W active PFC; 87/90/87% efficient at
20/50/100% load
Rated Input Current 5.5A
1
This system utilizes an active power factor corrected power supply. This allows the system to pass the CE mark requirements
for use in the countries of the European Union. The active power factor corrected power supply also has the added benefit of
not requiring an input voltage range select switch.
216 Appendix C Specifications
SFF Specifications
Table C-2 Specifications
Chassis (in the desktop position)
Height
Width
Depth
4.0 in
13.3 in
14.9 in
10.0 cm
33.8 cm
37.9 cm
Approximate Weight 16.7 lb 7.6 kg
Weight Supported (maximum distributed load in desktop position) 77 lb 35 kg
Temperature Range
Operating
Nonoperating
50° to 95°F
-22° to 140°F
10° to 35°C
-30° to 60°C
NOTE: Operating temperature is derated 1.0° C per 300 m (1000 ft) to 3000 m (10,000 ft) above sea level; no direct
sustained sunlight. Maximum rate of change is 10° C/Hr. The upper limit may be limited by the type and number of options
installed.
Relative Humidity (noncondensing)
Operating
Nonoperating (38.7°C max wet bulb)
10-90%
5-95%
10-90%
5-95%
Maximum Altitude (unpressurized)
Operating
Nonoperating
10,000 ft
30,000 ft
3048 m
9144 m
Power Supply
Operating Voltage Range
Rated Voltage Range
1
Rated Line Frequency
Operating Line Frequency
90-264 VAC
100-240 VAC
50-60 Hz
47-63 Hz
Standard Efficiency
High Efficiency
240W active PFC
240W active PFC; 87/90/87% efficient at
20/50/100% load
Rated Input Current 4A
1
This system utilizes an active power factor corrected power supply. This allows the system to pass the CE mark requirements
for use in the countries of the European Union. The active power factor corrected power supply also has the added benefit of
not requiring an input voltage range select switch.
SFF Specifications 217
Index
Symbols/Numerics
2.5-in drive adapter, spare part
number 29, 39
A
access panel
MT removal 55
MT spare part number 55
SFF removal and replacement
100
SFF spare part number 100
access panel, locked 150
access panel, MT
spare part number 26, 33
access panel, SFF
spare part number 35, 43
adapter, DisplayPort to DVI
spare part number 28, 33,
37, 43
adapter, DisplayPort to HDMI
spare part number 28, 32,
37, 42
adapter, DisplayPort to VGA
spare part number 27, 32,
37, 42
antenna, spare part number 29,
39
audible codes 195
audio problems 163
B
Backup and Restore 208
battery
disposal 51
battery replacement 211
beep codes 195
bezel blank
spare part number 59, 104
booting options
Full Boot 187
Quick Boot 187
C
cable management 52
cable pinouts
SATA data 52
card reader, spare part number
29, 39
cautions
AC power 45
cables 51
cooling fan 50
electrostatic discharge 45
keyboard cleaning 49
keyboard keys 49
CD-ROM or DVD problems 177
chasis types, illustrated 45
chassis fan, MT
spare part number 32
chassis fan, SFF
spare part number 43
chassis stand
spare part number 39
clamp lock, spare part number
29, 31, 39, 41
cleaning
computer 49
mouse 50
safety precautions 48
CMOS
backing up 199
clearing and resetting 200
computer
specifications 217
computer cleaning 49
country power cord set
requirements 215
Customer Support 146, 184
D
DIMMs. See memory
disassembly preparation
MT 54
SFF 99
DisplayPort cable
spare part number 28, 31,
38, 41
DMS-59 to dual DVI cable
spare part number 28, 31, 41
DMS-59 to dual VGA cable
spare part number 27, 31,
37, 41
drives
MT cable connections 70
MT installation 70
MT locations 72
SFF cable connections 117
SFF installation 117
SFF locations 117
E
electrostatic discharge (ESD) 45
preventing damage 46
error
codes 187, 195
messages 187
eSATA port (expansion), spare part
number 32, 43
eSATA port assembly, spare part
number 29, 39
expansion card
MT installation 64
MT removal 64
SFF installation 109
SFF removal 109
expansion slot cover
MT removal 65
SFF removal 110
external USB webcam, spare part
number 29, 39
F
f11 recovery 209
fan
MT spare part number 93
fan duct
SFF removal and replacement
132
SFF spare part number 132
fan duct, SFF
spare part number 38, 42
fan with guard, MT
spare part number 28
218 Index
fan, MT
spare part number 32
fan, power supply 50
fan, SFF
spare part number 38, 43
fan/baffle assembly
MT removal and replacement
85
flash drive problems 179
flashing LEDs 195
front bezel
MT blank removal 59
MT removal 56
MT security 57
MT spare part number 56
removing blanks 104
SFF removal and replacement
101
SFF security 102
SFF spare part number 101
front bezel, MT
spare part number 25, 33
front bezel, SFF
spare part number 35, 43
front fan
SFF removal and replacement
133
SFF spare part number 133
front fan assembly
MT spare part number 85
front I/O and power switch
assembly
SFF spare part number 136
front I/O assembly
MT spare part number 86
front I/O assembly, MT
spare part number 27, 33
front I/O assembly, SFF
spare part number 37
Front I/O cable and power switch
assembly, SFF
spare part number 42
front I/O, power switch assembly
SFF removal and replacement
136
front panel components
MT 2
SFF 3
front panel problems 180
front USB panel
MT removal and replacement
86
G
general problems 148
grommet (hard drive isolation),
spare part number 29, 39
grounding methods 46
guide screws
MT location 71
SFF location 118
H
hard drive
MT installation 78
MT removal 77
proper handling 51
SATA characteristics 52
SFF installation 125
SFF removal 125
spare part numbers 30, 40
hard drive problems 154
hard drive recovery 209
hardware installation problems
169
heat sink
MT removal and replacement
89
MT spare part number 89
SFF removal and replacement
139
SFF spare part number 139
heat sink, MT
spare part number 28, 32
heat sink, SFF
spare part number 39, 42
helpful hints 147
hood sensor
SFF removal and replacement
135
SFF spare part number 135
spare part number 29, 32,
39, 42
HP Business Digital Headset, spare
part number 29, 39
I
installing
battery 211
MT drive cables 70
MT expansion card 64
MT hard drive 78
MT media card reader 75
MT memory 60
MT optical drive 75
SFF drive cables 117
SFF expansion card 109
SFF hard drive 125
SFF media card reader 123
SFF memory 105
SFF optical drive 119
Internet access problems 181
K
keyboard
cleaning 49
spare part numbers 29, 31,
32, 39, 41, 42
keyboard problems 166
L
LEDs
blinking power 195
blinking PS/2 keyboard 195
locks
MT front bezel 57
SFF front bezel 102
M
media card reader
MT installation 75
MT removal 73
SFF installation 123
SFF removal 121
Media Card Reader problems
156
memory
MT installation 60
MT socket population 61
MT specifications 60
SFF installation 105
SFF socket population 106
SFF specifications 105
memory module
spare part number 60, 105
memory modules
spare part number 26, 33,
36, 43
memory problems 175
monitor problems 158
Index 219
mouse
cleaning 50
mouse problems 166
mouse, spare part number 29,
39
MT
access panel, spare part
number 26, 33
disassembly preparation 54
fan with guard, spare part
number 28
fan, spare part number 32
fan/baffle assembly removal
and replacement 85
front bezel, spare part
number 25, 33
front I/O assembly, spare part
number 27, 33
front USB panel removal and
replacement 86
heat sink removal and
replacement 89
heat sink, spare part number
28, 32
power supply removal and
replacement 95
power supply, spare part
number 26, 32
power switch/LED assembly
removal and replacement 87
power switch/LED assembly,
spare part number 27, 33
preparation for disassembly
54
processor removal and
replacement 90
rear chassis fan removal and
replacement 93
SATA hard drive cable, spare
part number 27, 33
SATA optical drive cable, spare
part number 27, 33
speaker removal and
replacement 91
speaker, spare part number
29, 32
system board removal and
replacement 96
system board, spare part
number 26, 34
N
network problems 171
numeric error codes 187
O
operating guidelines 48
optical drive
MT installation 75
MT removal 73
SFF installation 119
SFF removal 119
spare part numbers 30, 33,
40, 43
optical drive problems 177
overheating, prevention 48
P
password
clearing 199
power-on 199
setup 199
POST error messages 187
power cord set requirements
country specific 215
power problems 152
power supply
fan 50
MT removal and replacement
95
MT spare part number 95
operating voltage range 216,
217
SFF removal and replacement
142
power supply, MT
spare part number 26, 32
power supply, SFF
spare part number 35, 42
power switch/LED assembly
MT removal and replacement
87
MT spare part number 87
power switch/LED assembly, MT
spare part number 27, 33
power-on password 199
printer port (expansion), spare part
number 32, 42
printer port, PCI card
spare part number 39
printer port, spare part number
29
printer problems 165
problems
audio 163
CD-ROM or DVD 177
flash drive 179
front panel 180
general 148
hard drive 154
hardware installation 169
Internet access 181
keyboard 166
Media Card Reader 156
memory 175
monitor 158
mouse 166
network 171
power 152
printer 165
processor 176
software 182
processor
MT removal and replacement
90
SFF removal and replacement
141
spare part number 26, 34,
36, 43
processor problems 176
product ID locations 6
R
rear chassis fan
MT removal and replacement
93
MT spare part number 93
rear panel components
MT 4
SFF 5
recovery partition 209
removal and replacement
MT fan/baffle assembly 85
MT front USB panel 86
MT heat sink 89
MT power supply 95
MT power switch/LED
assembly 87
MT processor 90
MT rear chassis fan 93
220 Index
MT speaker 91
MT system board 96
SFF fan duct 132
SFF front bezel 100, 101
SFF front fan 133
SFF front I/O, power switch
assembly 136
SFF heat sink 139
SFF hood sensor 135
SFF power supply 142
SFF processor 141
SFF speaker 138
SFF system board 143
removing
battery 211
bezel blanks 104
MT bezel blanks 59
MT computer access panel 55
MT expansion card 64
MT expansion slot cover 65
MT front bezel 56
MT hard drive 77
MT media card reader 73
MT optical drive 73
SFF expansion card 109
SFF expansion slot cover 110
SFF hard drive 125
SFF media card reader 121
SFF optical drive 119
resetting
CMOS 199
password jumper 199
restoring the hard drive 209
rubber foot
spare part number 39
S
safety and comfort 146
safety precautions
cleaning 48
SATA
connectors on system board
52
data cable pinouts 52
hard drive characteristics 52
SATA cable, SFF
spare part number 37
SATA drive cable, SFF
spare part number 37
SATA hard drive cable, MT
spare part number 27, 33
SATA optical drive cable, MT
spare part number 27, 33
screws, correct size 50
security
MT front bezel 57
SFF front bezel 102
serial number locations 6
serial port (expansion), spare part
number 32, 42
serial port, spare part number 29,
39
service considerations 50
setup password 199
SFF
access panel, spare part
number 35, 43
chassis fan, spare part
number 43
disassembly preparation 99
fan duct removal and
replacement 132
fan duct, spare part number
38, 42
fan, spare part number 38
front bezel removal and
replacement 100, 101
front bezel, spare part
number 35, 43
front fan removal and
replacement 133
front I/O assembly, spare part
number 37
Front I/O cable and power
switch assembly, spare part
number 42
front I/O, power switch
assembly removal and
replacement 136
heat sink removal and
replacement 139
heat sink, spare part number
39, 42
hood sensor removal and
replacement 135
power supply removal and
replacement 142
power supply, spare part
number 35, 42
preparation for disassembly
99
processor removal and
replacement 141
SATA cable, spare part
number 37
SATA drive cable, spare part
number 37
solenoid lock, spare part
number 39
speaker removal and
replacement 138
speaker, spare part number
39, 42
system board removal and
replacement 143
system board, spare part
number 35, 44
software
problems 182
servicing computer 50
solenoid lock
spare part number 29, 32, 42
solenoid lock, SFF
spare part number 39
solid-state drive, spare part
number 30, 40
spare part number
tamper-resistant wrench 50
Torx T-15 screwdriver 50
speaker
MT removal and replacement
91
MT spare part number 91
SFF removal and replacement
138
SFF spare part number 138
speaker, MT
spare part number 29, 32
speaker, SFF
spare part number 39, 42
specifications
computer 216, 217
MT memory 60
SFF memory 105
static electricity 45
system board
MT removal and replacement
96
MT spare part number 96
Index 221
SATA connectors 52
SFF removal and replacement
143
SFF spare part number 143
system board connections
MT 69
SFF 115
system board, MT
spare part number 26, 34
system board, SFF
spare part number 35, 44
T
tamper-proof screws
tool 50
temperature control 48
tools, servicing 50
Torx T15 screwdriver 50
tower orientation 145
U
USB powered speakers, spare part
number 29, 32, 39, 42
V
ventilation, proper 48
W
Wake-on-LAN feature 171
Windows 8 operating system
DVD 210
WLAN module
removal 67, 113
spare part numbers 67, 113
222 Index

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