HP Pro Desk 400 G1 Desktop Mini Maintenance And Service Guide C04577660

User Manual: HP HP ProDesk 400 G1 Desktop Mini - Maintenance and Service Guide

Open the PDF directly: View PDF .
Page Count: 126

Download
Open PDF In Browser	View PDF

Maintenance and Service Guide
HP ProDesk 400 G1 Desktop Mini

© Copyright 2015 Hewlett-Packard
Development Company, L.P. The information
contained herein is subject to change without
notice.
Intel and Pentium are trademarks of Intel
Corporation in the U.S. and other countries.
Bluetooth is a trademark owned by its
proprietor and used by Hewlett-Packard
Company under license. Microsoft, Windows,
WIndows 7, and Windows 8.1 are U.S.
registered trademarks of the Microsoft group
of companies. SD Logo is a trademark of its
proprietor.
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 HewlettPackard Company.
First Edition (February 2015)
Document Part Number: 800859-001

Product notice
This guide describes features that are common
to most models. Some features may not be
available on your computer.
Not all features are available on all editions of
Windows 8.1. This computer may require
upgraded and/or separately purchased
hardware, drivers, and/or software to take full
advantage of Windows 8.1 functionality. See
http://www.microsoft.com for details.
This computer may require upgraded and/ or
separately purchased hardware and/or a DVD
drive to install the Windows 7 software and
take full advantage of Windows 7 functionality.
See http://windows.microsoft.com/en-us/
windows7/get-know-windows-7 for details.

Safety warning notice
WARNING! To reduce the possibility of heat-related injuries or of overheating the device, do not place
the device directly on your lap or obstruct the device air vents. Use the device only on a hard, flat surface. Do
not allow another hard surface, such as an adjoining optional printer, or a soft surface, such as pillows or
rugs or clothing, to block airflow. Also, do not allow the AC adapter to contact the skin or a soft surface, such
as pillows or rugs or clothing, during operation. The device and the AC adapter comply with the useraccessible surface temperature limits defined by the International Standard for Safety of Information
Technology Equipment (IEC 60950).

iii

Safety warning notice

Table of contents
1 Product Features ........................................................................................................................................... 1
Standard Configuration Features .......................................................................................................................... 1
Desktop mini ........................................................................................................................................ 1
Front panel components ....................................................................................................................................... 2
Rear panel components ......................................................................................................................................... 3
Serial Number Location ......................................................................................................................................... 4
2 Illustrated parts catalog ................................................................................................................................ 5
Chassis spare parts ................................................................................................................................................ 5
Computer major components ............................................................................................................. 5
Cables .................................................................................................................................................. 7
Misc parts ............................................................................................................................................. 8
Drives ................................................................................................................................................... 9
3 Routine care, SATA drive guidelines, and disassembly preparation .................................................................. 10
Electrostatic discharge information ................................................................................................................... 10
Generating static ............................................................................................................................... 10
Preventing electrostatic damage to equipment .............................................................................. 11
Personal grounding methods and equipment .................................................................................. 11
Grounding the work area .................................................................................................................. 11
Recommended materials and equipment ........................................................................................ 12
Operating guidelines ........................................................................................................................................... 12
Routine care ......................................................................................................................................................... 13
General cleaning safety precautions ................................................................................................ 13
Cleaning the Computer Case ............................................................................................................. 13
Cleaning the keyboard ...................................................................................................................... 13
Cleaning the monitor ......................................................................................................................... 14
Cleaning the mouse ........................................................................................................................... 14
Service considerations ........................................................................................................................................ 14
Tools and software requirements .................................................................................................... 14
Screws ............................................................................................................................................... 14
Cables and connectors ...................................................................................................................... 14
Hard Drives ........................................................................................................................................ 15
Lithium coin cell battery ................................................................................................................... 15
SATA hard drives .................................................................................................................................................. 15
SATA hard drive cables ........................................................................................................................................ 16

SATA data cable ................................................................................................................................. 16
SMART ATA drives ................................................................................................................................................ 16
Cable management .............................................................................................................................................. 16
4 Removal and replacement procedures ........................................................................................................... 17
Preparation for disassembly ............................................................................................................................... 17
Access panel ........................................................................................................................................................ 18
Hard drive ............................................................................................................................................................ 19
Speaker ................................................................................................................................................................ 23
Front bezel ........................................................................................................................................................... 25
Memory ................................................................................................................................................................ 26
SODIMMs ............................................................................................................................................ 26
DDR3-SDRAM SODIMMs .................................................................................................................... 26
Populating SODIMM sockets ............................................................................................................. 27
Replacing SODIMMs ........................................................................................................................... 28
Replacing the battery .......................................................................................................................................... 30
Heat sink .............................................................................................................................................................. 33
Processor ............................................................................................................................................................. 34
Fan ....................................................................................................................................................................... 36
Drive cage ............................................................................................................................................................ 37
WLAN module ...................................................................................................................................................... 39
M.2 solid-state drive ............................................................................................................................................ 41
External antennas (select models only) ............................................................................................................. 43
System board ....................................................................................................................................................... 46
System board callouts ...................................................................................................................... 49
WLAN antennas .................................................................................................................................................... 50
Changing from desktop to tower configuration ................................................................................................. 54
5 Computer Setup (F10) Utility ........................................................................................................................ 55
Computer Setup (F10) Utilities ............................................................................................................................ 55
Using Computer Setup (F10) Utilities ............................................................................................... 56
Computer Setup—File ...................................................................................................................... 57
Computer Setup—Storage ............................................................................................................... 58
Computer Setup—Security ............................................................................................................... 59
Computer Setup—Power .................................................................................................................. 61
Computer Setup—Advanced ............................................................................................................ 62
Recovering the Configuration Settings ............................................................................................................... 63
6 Troubleshooting without diagnostics ............................................................................................................ 64
Safety and comfort .............................................................................................................................................. 64

Before you call for technical support .................................................................................................................. 64
Helpful hints ........................................................................................................................................................ 65
Solving general problems ................................................................................................................................... 66
Solving hard drive problems ............................................................................................................................... 69
Solving display problems .................................................................................................................................... 71
Solving audio problems ....................................................................................................................................... 75
Solving printer problems ..................................................................................................................................... 77
Solving keyboard and mouse problems ............................................................................................................. 78
Solving Hardware Installation Problems ............................................................................................................ 79
Solving Network Problems .................................................................................................................................. 81
Solving memory problems .................................................................................................................................. 84
Solving USB flash drive problems ....................................................................................................................... 85
Solving Internet access problems ....................................................................................................................... 86
Solving software problems ................................................................................................................................. 87
7 POST error messages ................................................................................................................................... 89
POST numeric codes and text messages ............................................................................................................ 89
Interpreting POST diagnostic front panel LEDs and audible codes .................................................................... 93
8 Password security and resetting CMOS .......................................................................................................... 95
Resetting the password jumper .......................................................................................................................... 95
Changing a Setup or Power-On password .......................................................................................................... 96
Deleting a Setup or Power-On password ............................................................................................................ 97
Clearing and resetting the CMOS ......................................................................................................................... 97
9 HP PC Hardware Diagnostics ......................................................................................................................... 99
Why run HP PC Hardware Diagnostics ................................................................................................................. 99
How to access and run HP PC Hardware Diagnostics ......................................................................................... 99
Downloading HP PC Hardware Diagnostics (UEFI) to a USB device .................................................................... 99
10 System backup and recovery .................................................................................................................... 101
Backing up, restoring, and recovering in Windows 8.1 or Windows 8 ............................................................. 101
Creating recovery media and backups ........................................................................................... 101
Restoring and recovering using Windows tools ............................................................................. 101
Using Reset when the system is not responding ......................................................... 102
Recovery using the Windows recovery USB flash drive ............................................... 102
Recovery using Windows operating system media (purchased separately) .............. 103
Backing up, restoring, and recovering in Windows 7 ........................................................................................ 103
Creating recovery media ................................................................................................................. 104
Creating recovery media using HP Recovery Manager (select models only) .............. 104

vii

Creating recovery discs with HP Recovery Disc Creator (select models only) ............ 105
Creating recovery discs .............................................................................. 105
Backing up your information ........................................................................................ 106
System Restore ............................................................................................................................... 106
System Recovery ............................................................................................................................. 107
System Recovery when Windows is responding .......................................................... 107
System Recovery when Windows is not responding ................................................... 108
System Recovery using recovery media (select models only) .................................... 108
Using HP Recovery Disc operating system discs (select models only) ....................... 109
Appendix A Power Cord Set Requirements ...................................................................................................... 111
General Requirements ....................................................................................................................................... 111
Japanese Power Cord Requirements ................................................................................................................ 111
Country-Specific Requirements ........................................................................................................................ 112
Appendix B Statement of Volatility ................................................................................................................ 113
Appendix C Specifications ............................................................................................................................. 115
Index ........................................................................................................................................................... 116

viii

Product Features

Standard Configuration Features
Features may vary depending on the model. For support assistance and to learn more about the hardware
and software installed on your computer model, run the HP Support Assistant utility.

Desktop mini

NOTE: The desktop mini can be used in a tower orientation or a desktop orientation.

Standard Configuration Features

Front panel components

Dual-State Power Button

Microphone Connector

Hard Drive Activity Light

Headphone Connector

USB 3.0 Ports

NOTE: The Power On Light is normally white when the power is on. If it is flashing red, there is a problem with the
computer and it is displaying a diagnostic code. Refer to Interpreting POST diagnostic front panel LEDs and audible codes
on page 93 for more information.

Chapter 1 Product Features

Rear panel components

DisplayPort Monitor Connector

USB 2.0 Ports (black)

VGA Monitor Connector

RJ-45 Network Connector

USB 2.0 Ports with enhanced power (black)

Power Cord Connector

NOTE:

The two upper USB ports have additional power capacity to support the Desktop Mini External Expansion Sleeves.

NOTE: The two lower USB ports support wake-from-sleep states if that option is enabled in the Computer Setup (F10)
utility.

Rear panel components

Serial Number Location
Each computer has a unique serial number and a product ID number that are located on the exterior of the
computer. Keep these numbers available for use when contacting customer service for assistance.

Chapter 1 Product Features

Illustrated parts catalog

Chassis spare parts
NOTE: HP continually improves and changes product parts. For complete and current information on
supported parts for your computer, go to http://partsurfer.hp.com, select your country or region, and then
follow the on-screen instructions.

Computer major components

Item

Description

(1)

Access panel

(2)

Front bezel

(3)

System board (includes replacement thermal material)
For use in models without Windows 8.1
For use in models with Windows 8.1 Standard

Chassis spare parts

Item

Description
For use in models with Windows 8.1 Professional
For use in NetClone models
Stand
Power supply, 65W, 89% efficiency
Memory modules (PC3-12800, 1600-MHz)
8-GB
4-GB
Processors (include replacement thermal material)
Intel Core i7 4785T (2.2-GHz, 8-MB L3 cache), 35W
Intel Core i7 4765T (2.0-GHz, 8-MB L3 cache), 35W
Intel Core i5 4590T (2.0-GHz, 6-MB L3 cache), 35W
Intel Core i5 4570T (2.9-GHz, 4-MB L3 cache), 35W
Intel Core i3 4360T (3.2-GHz, 4-MB L3 cache), 35W
Intel Core i3 4350T (3.1-GHz, 4-MB L3 cache), 35W
Intel Core i3 4330T (3.0-GHz, 4-MB L3 cache), 35W
Intel Core i3 4160T (3.1-GHz, 3-MB L3 cache), 35W
Intel Core i3 4150T (3.0-GHz, 3-MB L3 cache), 35W
Intel Core i3 4130T (2.9-GHz, 3-MB L3 cache), 35W
Intel Pentium G3450T (2.9-GHz, 3-MB L3 cache), 35W
Intel Pentium G3440T (2.8-GHz, 3-MB L3 cache), 35W
Intel Pentium G3420T (2.7-GHz, 3-MB L3 cache), 35W
Intel Pentium G3250T (2.8-GHz, 3-MB L3 cache), 35W
Intel Pentium G3240T (2.7-GHz, 3-MB L3 cache), 35W
Intel Pentium G3220T (2.6-GHz, 3-MB L3 cache), 35W
Intel Celeron G1840T (2.5-GHz, 2-MB L3 cache), 54W
Intel Celeron G1820T (2.4-GHz, 2-MB L3 cache), 35W

Chapter 2 Illustrated parts catalog

Cables

Item

Description

(1)

SATA power cable
Wireless antenna cables
Adapter, DisplayPort to HDMI 1.4
Adapter, DisplayPort to VGA
Adapter, DisplayPort to DVI
Adapter, USB to serial
Cable, DisplayPort to HDMI
DisplayPort cable
Grommet, hard drive

Chassis spare parts

Misc parts

Item

Description

(1)

Heat sink

(2)

Fan

(3)

Speaker

(4)

LED cover

Antenna cover

HP Ultraslim Keyed Cable Lock

WLAN modules:
HP WLAN 802.11 a/b/g/n, 2x2 + Bluetooth 4.0
HP WLAN 802.11 a/b/g/n, 2x2

Mouse
USB, laser
USB, optical
Washable
Wireless

Keyboards

Chapter 2 Illustrated parts catalog

Item

Description
USB
Wireless + dongle + mouse
Washable
Smart card

Drives
Description
Hard drives/Solid-state drives:
1 TB, 7200 rpm, hard drive, 2.5-inch, SSHD (hybrid SSD)
500 GB, 7200 rpm hard drive, 2.5-inch
500 GB, SSHD (hybrid SSD), 2.5-inch
500 GB, 7200 rpm hard drive, 2.5-inch, SED
500 GB, 5400 rpm hard drive, 2.5-inch, FIPS
256 GB solid-state drive (SSD)
256 GB solid-state drive (SSD), self-encrypting (SED)
180 GB solid-state drive (SSD), SATA 6.0, OPAL 1.0, MLC
180 GB solid-state drive (SSD), SATA 6.0
128 GB solid-state drive (SSD)
128 GB solid-state drive (SSD), Self-encrypting Drive (SED), OPAL 2.0, SATA 6.0
128 GB solid-state drive (SSD), M.2 2280SS, PCIe
120 GB solid-state drive (SSD), SATA 6.0, OPAL 1.0, MLC
120 GB solid-state drive (SSD), SATA 6.0
Grommet, hard drive

Chassis spare parts

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

7,500 V

15,000 V

35,000 V

Walking across vinyl floor

3,000 V

5,000 V

12,000 V

Motions of bench worker

400 V

800 V

6,000 V

Removing DIPs from plastic tube

400 V

700 V

2,000 V

Removing DIPs from vinyl tray

2,000 V

4,000 V

11,500 V

Removing DIPs from Styrofoam

3,500 V

5,000 V

14,500 V

Removing bubble pack from PCB

7,000 V

20,000 V

26,500 V

Packing PCBs in foam-lined box

5,000 V

11,000 V

21,000 V

These are then multi-packaged inside plastic tubes, trays, or Styrofoam.

NOTE: 700 volts can degrade a product.

Chapter 3 Routine care, SATA drive guidelines, and disassembly preparation

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
Method

Voltage

Antistatic plastic

1,500

Carbon-loaded plastic

7,500

Metallized laminate

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.

Electrostatic discharge information

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

●

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.

Chapter 3 Routine care, SATA drive guidelines, and disassembly preparation

●

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.

Never immerse any parts in water or cleaning solutions; apply any liquids to a clean cloth and then use
the cloth on the component.

Always unplug the computer when cleaning with liquids or damp cloths.

Always unplug the computer before cleaning the keyboard, mouse, or air vents.

Disconnect the keyboard before cleaning it.

Wear safety glasses equipped with side shields when cleaning the keyboard.

Cleaning the Computer Case
Follow all safety precautions in General cleaning safety precautions on page 13 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 13 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 13.
When cleaning debris from under the keys, review all rules in General cleaning safety precautions on page 13
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.

Routine care

●

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 13.

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 13.

Service considerations
Listed below are some of the considerations that you should keep in mind during the disassembly and
assembly of the computer.

Tools and software requirements
To service the computer, you need the following:
●

Torx T-15 screwdriver

●

Torx T-15 screwdriver

●

Flat-bladed screwdriver (may sometimes be used in place of the Torx screwdriver)

●

Diagnostics software

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: As each subassembly is removed from the computer, it should be placed away from the work
area to prevent damage.

Cables and connectors
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

Chapter 3 Routine care, SATA drive guidelines, and disassembly preparation

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 computer.

●

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.

●

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.

SATA hard drives
Serial ATA Hard Drive Characteristics
Number of pins/conductors in data cable

7/7

Number of pins in power cable

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

SATA hard drives

Jumpers for configuring drive

N/A

Data transfer rate

6.0 Gb/s

SATA hard drive cables
SATA data cable
Always use an HP approved SATA 6.0 Gb/s cable as it is fully backwards compatible with the SATA 1.5 Gb/s
drives.
Current HP desktop products ship with SATA 6.0 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.

●

Keep cables clear of sliding or moveable parts to prevent them from being cut or crimped when the
parts are moved.

●

When folding a flat ribbon cable, never fold to a sharp crease. Sharp creases may damage the wires.

●

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.

Chapter 3 Routine care, SATA drive guidelines, and disassembly preparation

Removal and replacement procedures
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.
NOTE: HP continually improves and changes product parts. For complete and current information on
supported parts for your computer, go to http://partsurfer.hp.com, select your country or region, and then
follow the on-screen instructions.

Preparation for disassembly
See Routine care, SATA drive guidelines, and disassembly preparation on page 10 for initial safety
procedures.
1.

Remove/disengage any security devices that prohibit opening the computer.

Remove all removable media, such as a USB flash drive, from the computer.

Turn off the computer properly through the operating system, then turn off any external devices.
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.
4.

Disconnect the power cord from the power outlet and disconnect any external devices.

If the computer is on a stand, remove the computer from the stand.

WARNING!

Beware of sharp edges inside the chassis.

Preparation for disassembly

Access panel
1.

Prepare the computer for disassembly (Preparation for disassembly on page 17).

Loosen the thumbscrew on the rear of the computer (1) then slide the panel forward and lift if off the
computer (2).

To install the access panel, reverse the removal procedure.

Chapter 4 Removal and replacement procedures

Hard drive
Description
Hard drives/Solid-state drives
1 TB, 7200 rpm, hard drive, 2.5-inch, SSHD (hybrid SSD)
500 GB, 7200 rpm hard drive, 2.5-inch
500 GB, SSHD (hybrid SSD), 2.5-inch
500 GB, 7200 rpm hard drive, 2.5-inch, SED
500 GB, 5400 rpm hard drive, 2.5-inch, FIPS
256 GB solid-state drive (SSD)
256 GB solid-state drive (SSD), self-encrypting (SED)
180 GB solid-state drive (SSD), SATA 6.0, OPAL 1.0, MLC
180 GB solid-state drive (SSD), SATA 6.0
128 GB solid-state drive (SSD)
128 GB solid-state drive (SSD), Self-encrypting Drive (SED), OPAL 2.0, SATA 6.0
128 GB solid-state drive (SSD), M.2 2280SS, PCIe
120 GB solid-state drive (SSD), SATA 6.0, OPAL 1.0, MLC
120 GB solid-state drive (SSD), SATA 6.0
Grommet, 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.
1.

Prepare the computer for disassembly (Preparation for disassembly on page 17).

Remove the access panel Access panel on page 18.

Hard drive

Disconnect the hard drive power cable (1) and data cable (2) from the system board.

Pull the release lever next to the rear of the hard drive outward (1). While pulling the release lever out,
slide the drive back until it stops, then lift the drive up and out of the bay (2).

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.

Chapter 4 Removal and replacement procedures

Transfer the drive cables from the old drive to the new drive.

Align the guide screws with the slots on the chassis drive cage, press the hard drive down into the bay,
then slide it forward until it stops and locks in place.

Hard drive

Connect the hard drive power cable (1) and data cable (2) to the system board.

Reverse this procedure to replace the hard drive.

Chapter 4 Removal and replacement procedures

Speaker
A single speaker is located on the left side of the computer behind the front bezel, inside the chassis. It is
secured by a white peg that you pull out to release.

To remove the speaker:
1.

Prepare the computer for disassembly (Preparation for disassembly on page 17).

Remove the access panel (Access panel on page 18).

From the front of the computer, pull to remove the white peg that secures the speaker (1).

Disconnect the speaker cable from the system board connector (2).

Speaker

Lift to remove the speaker from the computer (3).

To install the speaker, reverse the removal procedures.

Chapter 4 Removal and replacement procedures

Front bezel
The front bezel is secured to the access panel by tabs.
1.

Prepare the computer for disassembly (Preparation for disassembly on page 17).

Remove the access panel (Access panel on page 18).

Position the access panel upside-down so you can access the inside of the bezel.

Pull down to loose the bottom, interior on the bezel (1).

Disengage the tabs on the top, interior of the bezel (2).

Remove the bezel from the access panel.

To install the front bezel, reverse the removal procedure.

Front bezel

Memory
Description
8-GB, PC3-12800, SODIMM
4-GB, PC3-12800, SODIMM

The computer comes with double data rate 3 synchronous dynamic random access memory (DDR3-SDRAM)
small outline dual inline memory modules (SODIMMs).

SODIMMs
The memory sockets on the system board can be populated with up to two industry-standard SODIMMs.
These memory sockets are populated with at least one preinstalled SODIMM. To achieve the maximum
memory support, you can populate the system board with up to 16-GB of memory.

DDR3-SDRAM SODIMMs
For proper system operation, the SODIMMs must be:
●

industry-standard 204-pin

●

unbuffered non-ECC PC3-12800 DDR3-1600 MHz-compliant

●

1.5 volt DDR3-SDRAM SODIMMs or 1.35 volt DDR3L-SDRAM SODIMMs

The DDR3-SDRAM SODIMMs must also:
●

support CAS latency 11 DDR3 1600 MHz (11-11-11 timing)

●

contain the mandatory Joint Electronic Device Engineering Council (JEDEC) specification

In addition, the computer supports:
●

512-Mbit, 1-Gbit, and 2-Gbit non-ECC memory technologies

●

single-sided and double-sided SODIMMS

●

SODIMMs constructed with x8 and x16 devices; SODIMMs constructed with x4 SDRAM are not supported

NOTE: The system will not operate properly if you install unsupported SODIMMs.

Chapter 4 Removal and replacement procedures

Populating SODIMM sockets
There are two SODIMM sockets on the system board, with one socket per channel. The sockets are labeled
DIMM1 and DIMM3. The DIMM1 socket operates in memory channel B. The DIMM3 socket operates in memory
channel A.

Item

Description

System Board Label

Socket Color

SODIMM1 socket, Channel B

DIMM1

Black

SODIMM3 socket, Channel A

DIMM3

Black

The system will automatically operate in single channel mode, dual channel mode, or flex mode, depending
on how the SODIMMs are installed.
●

The system will operate in single channel mode if the SODIMM sockets are populated in one channel
only.

●

The system will operate in a higher-performing dual channel mode if the memory capacity of the
SODIMM in Channel A is equal to the memory capacity of the SODIMM in Channel B.

●

The system will operate in flex mode if the memory capacity of the SODIMM in Channel A is not equal to
the memory capacity of the SODIMM 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. If one channel will have more memory than the other, the larger amount
should be assigned to channel A.

●

In any mode, the maximum operational speed is determined by the slowest SODIMM in the system.

Memory

Replacing SODIMMs
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.
When handling a memory module, be careful not to touch any of the contacts. Doing so may damage the
module.

Prepare the computer for disassembly (Preparation for disassembly on page 17).

Remove the access panel (Access panel on page 18).

Remove the hard drive (Hard drive on page 19).

To remove a SODIMM, press outward on the two latches on each side of the SODIMM (1) then pull the
SODIMM out of the socket (2).

Chapter 4 Removal and replacement procedures

Slide the new SODIMM into the socket at approximately a 30° angle (1) then press the SODIMM down (2)
so that the latches lock it in place.

NOTE: A memory module can be installed in only one way. Match the notch on the module with the tab
on the memory socket.
6.

Replace the hard drive and connect the power and data cables to the system board.

Replace the access panel.

If the computer was on a stand, replace the stand.

Reconnect the power cord and turn on the computer.

10. Lock any security devices that were disengaged when the computer cover or access panel was removed.
The computer automatically recognizes the additional memory when you turn on the computer.

Memory

Replacing the battery
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 3volt 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.

Prepare the computer for disassembly (Preparation for disassembly on page 17).

Remove the access panel (Access panel on page 18).

Locate the battery and battery holder on the system board.

Depending on the type of battery holder on the system board, complete the following instructions to
replace the battery.
NOTE: You may need to use a small tool, such as tweezers or needle-nose pliers, to remove and
replace the battery.
Type 1

Chapter 4 Removal and replacement procedures

Pull back on the clip (1) that is holding the battery in place, and lift the battery out of the holder
(2).

Pull back on the clip (1) and slide the replacement battery down into the holder (2).

Type 2
a.

Push the battery toward the outside of the chassis to release it from the holder and lift it out.

Replacing the battery

Lower the battery so that is next to the holder then push it into the holder.

NOTE:

After the battery has been replaced, use the following steps to complete this procedure.

Replace the computer access panel.

Plug in the computer and turn on power to the computer.

Reset the date and time, your passwords, and any special system setups using Computer Setup.

Lock any security devices that were disengaged when the computer access panel was removed.

Chapter 4 Removal and replacement procedures

Heat sink
The heat sink is secured with four captive Torx screws. Be sure to remove and replace the screws in the
order indicated on the heat sink.
1.

Prepare the computer for disassembly (Preparation for disassembly on page 17).

Remove the access panel (Access panel on page 18).

In the order indicated on the heat sink, loosen the four captive Torx screws (1), and then lift the heat
sink out of the computer (2).
CAUTION:
sink.

Be sure the loosen the screws in the order indicated by the numbers stamped on the heat

CAUTION: To reduce a degradation in thermal performance, be sure not to touch the thermal grease
on the surface of the processor or the heat sink.

To replace the heat sink, reverse the removal procedures.

Heat sink

Processor
Description
Intel Core i7 4785T (2.2-GHz, 8-MB L3 cache), 35W
Intel Core i7 4765T (2.0-GHz, 8-MB L3 cache), 35W
Intel Core i5 4590T (2.0-GHz, 6-MB L3 cache), 35W
Intel Core i5 4570T (2.9-GHz, 4-MB L3 cache), 35W
Intel Core i3 4360T (3.2-GHz, 4-MB L3 cache), 35W
Intel Core i3 4350T (3.1-GHz, 4-MB L3 cache), 35W
Intel Core i3 4330T (3.0-GHz, 4-MB L3 cache), 35W
Intel Core i3 4160T (3.1-GHz, 3-MB L3 cache), 35W
Intel Core i3 4150T (3.0-GHz, 3-MB L3 cache), 35W
Intel Core i3 4130T (2.9-GHz, 3-MB L3 cache), 35W
Intel Pentium G3450T (2.9-GHz, 3-MB L3 cache), 35W
Intel Pentium G3440T (2.8-GHz, 3-MB L3 cache), 35W
Intel Pentium G3420T (2.7-GHz, 3-MB L3 cache), 35W
Intel Pentium G3250T (2.8-GHz, 3-MB L3 cache), 35W
Intel Pentium G3240T (2.7-GHz, 3-MB L3 cache), 35W
Intel Pentium G3220T (2.6-GHz, 3-MB L3 cache), 35W
Intel Celeron G1840T (2.5-GHz, 2-MB L3 cache), 54W
Intel Celeron G1820T (2.4-GHz, 2-MB L3 cache), 35W

Prepare the computer for disassembly (Preparation for disassembly on page 17).

Remove the access panel (Access panel on page 18).

Remove the heat sink (Heat sink on page 33).

Rotate the locking lever to its full open position (1).

Raise and rotate the microprocessor retainer to its fully open position (2).(2).

Chapter 4 Removal and replacement procedures

Carefully lift the processor from the socket (3).
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.

To replace the processor, reverse the removal procedures.
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.

Processor

Fan
The fan sits between the fan sink and the rear of the computer.
1.

Prepare the computer for disassembly (Preparation for disassembly on page 17).

Remove the access panel (Access panel on page 18).

Remove the heat sink (Heat sink on page 33).

Disconnect the fan cable from the system board connector labeled CHFAN (1).

Remove the four Torx screws that secure the fan to the computer (2).

Remove the fan from the computer.

To install the fan, reverse the removal procedure.
NOTE: To avoid damaging the rubber screw grommets installed around the captive screws, when installing
the fan, push down on the fan assembly before you tighten the screws. Make sure the grommets are
positioned correctly before tightening the screws.

Chapter 4 Removal and replacement procedures

Drive cage
The drive cage is located next to the heat sink. The drive cage is secured with three slotted Torx screws.

Prepare the computer for disassembly (Preparation for disassembly on page 17).

Remove the access panel (Access panel on page 18).

Remove the three screws (1) that secure the drive cage to the computer.

Drive cage

Lift the drive cage up and out of the computer (2).

To install the drive cage, reverse the removal procedure.

Chapter 4 Removal and replacement procedures

WLAN module
Description
HP WLAN 802.11 a/b/g/n, 2x2 + Bluetooth 4.0
HP WLAN 802.11 a/b/g/n, 2x2

The WLAN module is located near the memory modules. The WLAN module is secured with one slotted Torx
screw and has two connected antennas.
NOTE: WLAN module appearance may vary.

Prepare the computer for disassembly (Preparation for disassembly on page 17).

Remove the access panel (Access panel on page 18).

Remove the hard drive (Hard drive on page 19).

Remove the drive cage (Drive cage on page 37).

Disconnect the antenna cables from the module (1).

Remove the screw (2) that secures the module to the computer.

WLAN module

Pull the module to remove it from the socket (3).

To install the WLAN module, reverse the removal procedure.
NOTE: WLAN modules are designed with a notch to prevent incorrect insertion.

Chapter 4 Removal and replacement procedures

M.2 solid-state drive
Description
128 GB solid-state drive (SSD), M.2

The M.2 SSD is secured with one slotted Torx screw. It is located under the heat sink and fan.

To remove the M.2 SSD:
1.

Prepare the computer for disassembly (Preparation for disassembly on page 17).

Remove the access panel (Access panel on page 18).

Remove the hard drive (Hard drive on page 19).

Remove the drive cage (Drive cage on page 37).

Remove the heat sink (Heat sink on page 33).

Remove the fan (Fan on page 36).

Remove the Torx screw that secures the module to the computer.

M.2 solid-state drive

Lift the module to a 45-degree angle, and then pull it away to remove it from the socket.

To install the M.2 SSD, reverse the removal procedures.
NOTE: M.2 SSDs are designed with a notch to prevent incorrect insertion.

Chapter 4 Removal and replacement procedures

External antennas (select models only)
The external connection antennas route from the WLAN module to the cable connectors on the rear of the
computer.
To install the antennas:
1.

Prepare the computer for disassembly (Preparation for disassembly on page 17).

Remove the access panel (Access panel on page 18).

Remove the hard drive (Hard drive on page 19).

Remove the drive cage (Drive cage on page 37).

Remove the heat sink (Heat sink on page 33).

Remove the fan (Fan on page 36).

Using a screwdriver, pry out the two knockouts that cover the antenna cable connector holes on the
back of the computer.

Insert the cable connectors into the slots on the rear of the computer, and then fasten the connectors
using the included washer (on the inside of the chassis) and nut (on the outside of the chassis).

External antennas (select models only)

Connect the connector on the end of the black antenna cable to the connector labeled ‘1’ on the WLAN
module.

10. Route the white cable using the hooks connected to the chassis.

Note the correct cable routing in the following image.

Chapter 4 Removal and replacement procedures

Properly installed, the white antenna routes under the fan and hard drive SATA cables.

External antennas (select models only)

System board
NOTE: All system board spare part kits include replacement thermal material.
NOTE: System board appearance may vary.
Description
System board for use in models without Windows 8.1
System board for use in models with Windows 8.1 Standard
System board for use in models with Windows 8.1 Professional
System board for use in NetClone models

Prepare the computer for disassembly (Preparation for disassembly on page 17).

Remove the access panel (Access panel on page 18).

Remove the hard drive (Hard drive on page 19).

Remove the drive cage (Drive cage on page 37).

Remove the heat sink (Heat sink on page 33).

Remove the fan (Fan on page 36).

Remove the solid-state drive (if installed) (M.2 solid-state drive on page 41).

Remove the memory modules (Memory on page 26).

Remove the WLAN module (WLAN module on page 39).

10. Remove the processor (Processor on page 34).
11. Disconnect all cables from the system board, noting their location for reinstallation.
12. Remove the two Torx screws (1) that secure the system board to the computer.

Chapter 4 Removal and replacement procedures

13. Lift the left side of the system board, and then remove it from the computer (2).

To install the system board, reverse the removal procedures.
NOTE: When replacing the system board, you must change the chassis serial number in the BIOS.
Updating SMBIOS Information
When replacing the system board, you must reprogram the SMBIOS information on the affected computer.
Failure to reprogram the board will result in eventual failure, such as an activation failure (need to reactivate
the system) or a system recovery failure.
To update SMBIOS information in Computer Setup:
1.

Turn on or restart the computer.

Press Esc while the “Press the ESC key for Startup Menu” message is displayed at the bottom of the
screen.
NOTE: If you do not press Esc at the appropriate time, you must restart the computer and again press
Esc when the monitor light turns green to access the utility.

Press F10 to enter Computer Setup.

Go to Security > System ID’s.

System board

If necessary, press Ctrl+A to initiate edit mode.

Edit the fields listed. If the feature byte has data or is not editable, then it was not cleared and cannot be
edited.

System ID Setup Page
Setup Field Name

Comment

Label

Product Name

Enter the Model name/number or
marketing name.

Flexbuild

Serial Number

Enter the Serial Number of Unit.

Support

SKU Number

Enter the SKU or Product Number including
Localization Code.

Support

Asset Tag

Enter the 18-byte identifier assigned to
the computer.

Support

Feature Byte

Enter the Feature Byte string. The feature
byte string is case sensitive.

Flexbuild

The label includes spaces after every four
characters. You can enter or ignore these
spaces – their only purpose is to help with
data entry. There is a character limitation
of 40 bytes per line. When you reach this
limit, go
If you make an error during data entry, the
data will not validate, and the computer
asks you to correct your data input.
Build ID

The Build ID of the unit.

Chapter 4 Removal and replacement procedures

Flexbuild

System board callouts

Sys Bd Label

Color

Component

Sys Bd Label

Color

Component

BAT

Black

RTC battery

SATA0

Blue

Hard drive data
connector

XU1

Black

Processor

CMOS

Yellow

CMOS reset button

DIMM3

Black

Secondary memory
socket

SATAPWR0

White

Hard drive power
connector

DIMM1

Black

Primary memory socket

CPUFAN

White

Fan connector

SPKR

White

Speaker connector

PSWD

Black/blue

Password header and
jumper

M.2

Black

WLAN module socket

M.2

Black

Solid-state drive socket

System board

WLAN antennas
The antennas route from the WLAN module to the cable connectors on the rear of the computer.
To install the antennas:

Prepare the computer for disassembly (Preparation for disassembly on page 17).

Remove the access panel (Access panel on page 18).

Remove the hard drive (Hard drive on page 19).

Remove the drive cage (Drive cage on page 37).

Remove the heat sink (Heat sink on page 33).

Remove the fan (Fan on page 36).

Disconnect the WLAN antenna cables from the WLAN module.

Remove the system board (System board on page 46).

Chapter 4 Removal and replacement procedures

Remote the antenna cables from their routing paths underneath the keyboard. Note the locations the
cables are taped to the chassis as shown in the following image.

10. On the rear of the computer, remove the antenna cover by pressing on the tab on the top of the cover
(1), and then rotating the cover off the computer (2).

WLAN antennas

11. Antenna transceivers are connected to the front and back of the computer as shown in the following
image.

12. Remove the front transceiver from the inside of the computer by pressing the tab to disengage the
transceiver and removing the transceiver (arrow in following image points to the tabs on the inside of
the computer).

Chapter 4 Removal and replacement procedures

13. Remove the rear transceiver from the inside of the computer by pressing the tab to disengage the
transceiver and removing the transceiver (arrow in following image points to the tabs on the inside of
the computer).

Reverse the removal procedure to install the WLAN antennas and transceivers.

WLAN antennas

Changing from desktop to tower configuration
The computer can be used in a tower orientation with an optional tower stand that can be purchased from
HP.
1.

Remove/disengage any security devices that prohibit opening the computer.

Remove all removable media, such as a USB flash drive, from the computer.

Turn off the computer properly through the operating system, then turn off any external devices.

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.

Orient the computer so that its right side is facing up and place the computer in the optional stand.

NOTE:
stand.
6.

To stabilize the computer in a tower orientation, HP recommends the use of the optional tower

Reconnect the power cord and any external devices, then turn on the computer.
NOTE: Ensure at least 10.2 centimeters (4 inches) of space on all sides of the computer remains clear
and free of obstructions.

Lock any security devices that were disengaged when the access panel was removed.

Chapter 4 Removal and replacement procedures

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 Fast 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 poweron.

●

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 USB 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.

●

Execute self-tests on a specified ATA hard drive (when supported by drive).

●

Enable or disable DriveLock security (when supported by drive).

Computer Setup (F10) Utilities

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.

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.
NOTE: If the Computer Setup (F10) Utility is set to “fast boot”, use one of the following procedures to
access Computer Setup:
●

Before turning on the computer, press and hold F10. Turn on the computer and continue to hold
F10 until the Computer Setup (F10) Utility is displayed.
- or –

●

Follow the Windows 8.1 instructions for rebooting the computer into the Computer Setup (F10)
Utility.

A choice of five headings appears in the Computer Setup Utilities menu: File, Storage, Security, Power,
and Advanced.

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.

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.

Chapter 5 Computer Setup (F10) Utility

Computer Setup—File
NOTE: Support for specific Computer Setup options may vary depending on the hardware configuration.
Table 5-1 Computer Setup—File
Option

Description

System Information

Lists:
●

Manufacturer

●

Product name

●

SKU number

●

Born on Date

●

System board ID and CT number

●

BIOS Revision

●

BIOS Date

●

Processor type and speed

●

Installed memory size/speed, number of channels (single or dual) (if applicable)

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.

Computer Setup (F10) Utilities

Computer Setup—Storage
NOTE: Support for specific Computer Setup options may vary depending on the hardware configuration.
Table 5-2 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:
●

Storage Options

Hard Disk: Size, model, firmware version, serial number.

SATA Emulation
Allows you to choose how the SATA controller and devices are accessed by the operating system.
Supported options include: IDE and AHCI (default).
CAUTION: SATA emulation changes may prevent access to existing hard drive data and degrade or
corrupt established volumes.
IDE Mode- This is the default and most backwards-compatible setting of the options. Operating systems
usually do not require additional driver support in IDE mode. Use this option for "normal" (non-RAID)
configurations
AHCI Mode (default option) - Allows operating systems with AHCI device drivers loaded to take advantage
of more advanced features of the SATA controller.
Removable Media Boot
Enables/disables ability to boot the system from removable media. Default is enabled.

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:
●

UEFI 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

Chapter 5 Computer Setup (F10) Utility

Table 5-2 Computer Setup—Storage (continued)
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—Security
NOTE: Support for specific Computer Setup options may vary depending on the hardware configuration.
Table 5-3 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

Allows you to enable/disable:

(This selection appears
only if a power-on
password or setup
password is set.)

●

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.

Device Security

USB Security

Slot Security

●

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.

Allows you to set Device Available/Device Hidden (default is Device Available) for:
●

Embedded security device

●

System audio

●

Network controller

●

SATA ports (varies by model)

Allows you to set Enabled/Disabled (default is Enabled) for:
●

Front USB Ports

●

Rear USB Ports

●

Internal USB Ports

Allows you to disable any M.2 card slot. Default is enabled.

Computer Setup (F10) Utilities

Table 5-3 Computer Setup—Security (continued)
Network Boot

Enables/disables the computer’s ability to boot from an operating system installed on a network server.
Default is enabled.

System IDs

Allows you to set:

System Security (these
options are hardware
dependent)

●

Product Name

●

Serial Number

●

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.)

●

Family Name

●

Feature Byte

●

Build ID

●

Keyboard locale setting for System ID entry.

NOTE:

Available options are displayed depending on system configuration.

Data Execution Prevention (enable/disable) - Helps prevent operating system security breaches. Default
is enabled.
Virtualization Technology (enable/disable) - Controls the virtualization features of the processor.
Changing this setting requires turning the computer off and then back on. Default is disabled.
Embedded Security Device (some models) (enable/disable) - Permits activation and deactivation of the
Embedded Security Device. Changing this setting requires turning the computer off and then back on.
NOTE:
●

To configure the Embedded Security Device, a Setup password must be set.

Reset to Factory Settings (some models) (Do not reset/Reset) - Resetting to factory defaults will
erase all security keys. Changing this setting requires turning the computer off and then back on.
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 pathand saves
collected metrics to PCR5 (a register in the Embedded Security Device). Bitlockertracks changes to
any of these metrics, and forces the user to re-authenticate if it detectsany changes. Enabling this
feature lets you set Bitlocker to ignore detected changes to bootpath metrics, thereby avoiding reauthentication issues associated with USB keys inserted in a port. Default is enabled.

OS management of Embedded Security Device (some models) (enable/disable) - This option allows the
user to limit operating system control of the Embedded Security Device. Changing this setting requires
turning the computer off and then back on. This option allows the user to limit OS control of the
Embedded Security Device. Default is enable.
●

Reset of Embedded Security Device through OS (some models) (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. Changing this setting requires turning the computer off and then back
on. Default is disable.
NOTE:

●

To enable this option, a Setup password must be set.

No PPI provisioning (Windows 8.1 only) - This option lets you set Windows 8.1 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 8.1 systems, and enabled for Windows 8.1.

Chapter 5 Computer Setup (F10) Utility

Table 5-3 Computer Setup—Security (continued)
●

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:

DriveLock Security

To enable this option, a Setup password must be set.

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

●

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 preapproved digital certificates to run during the firmware and OS boot process. Default is disabled,
except for Windows 8.1 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 8.1 detects a serious error, it will interrupt the boot process automatically and
display advanced boot options.
From Windows 8.1, you can press Shift and select Restart to access the screen that lets you boot to
a device or troubleshoot your computer.

Computer Setup—Power
NOTE: Support for specific Computer Setup options may vary depending on the hardware configuration.
Table 5-4 Computer Setup—Power
Option

Description

OS Power Management

●

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.

●

Idle Power Savings—Extended/Normal. Allows certain operating systems to decrease the
processors power consumption when the processor is idle. Default is extended.

●

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 8.1 systems with Fast Boot support, a normal shutdown goes to the S4 state.

Computer Setup (F10) Utilities

Table 5-4 Computer Setup—Power (continued)

Hardware Power
Management

◦

S0 (On) = Solid white LED.

◦

S3 (Stand By)= 3 blinks at 1Hz (50% duty cycle) followed by a pause of 2 seconds (white 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 (white
LED) — repeated cycles of 4 blinks and a pause.

◦

S5 (Soft Off) = LED is off.

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.
S4/S5 Wake On LAN. Lets you set the computer to power on at the specified days/times set in the BIOS
power-on. Default is disabled.
Power on from USB Kbd Port. Default is 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.

CPU Fan Speed—Shows the fan speed.

Computer Setup—Advanced
NOTE: Support for specific Computer Setup options may vary depending on the hardware configuration.
Table 5-5 Computer Setup—Advanced (for advanced users)
Option

Heading

Power-On Options

Allows you to set:
●

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.

●

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.

BIOS Power-On

Allows you to set the computer to turn on automatically at a time you specify.

Onboard Devices

Allows you to set resources for or disable Legacy devices.

Chapter 5 Computer Setup (F10) Utility

Table 5-5 Computer Setup—Advanced (for advanced users) (continued)
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

Device 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.

Allows you to set:
●

Num Lock State at Power-On (off/on). Default is off.

●

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.

●

Integrated Audio (enable/disable). Allows you to enable or disable the onboard Audio controller.

●

NIC PXE Option ROM Download (enable, disable). 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 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 57 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 57 in the Computer Setup—File table.)

Recovering the Configuration Settings

Troubleshooting without diagnostics
This chapter provides information on how to identify and correct minor 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 SelfTest (POST) at startup, refer to Appendix A, POST error messages on page 89.

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 55 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 89
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.”

●

Refer to the comprehensive online technical support at http://www.hp.com/support.

●

Refer to Helpful hints on page 65 in this guide.

To assist you in resolving problems online, HP Instant Support Professional Edition provides you with selfsolve 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.

Chapter 6 Troubleshooting without diagnostics

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 computer is turned on and the white power light is on.

●

Check that the monitor is turned on and the green monitor light is on.

●

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.

●

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 79 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 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.

Helpful hints

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.
Cannot access the Computer Setup (F10) Utility when booting the computer.
Cause

Solution

The Computer Setup (F10) Utility is set to “fast boot” causing the
F10 access screen to display too briefly when booting the
computer.

Before turning on the computer, press and hold F10. Turn on the
computer and continue to hold F10 until the Computer Setup
(F10) Utility is displayed.
- or –
Follow the Windows 8.1 instructions for rebooting the computer
into the Computer Setup (F10) Utility.

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.

Press and hold the power button for at least four seconds
until the computer turns off.

Disconnect the power cord from the electrical outlet.

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.

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

Chapter 6 Troubleshooting without diagnostics

Computer date and time display is incorrect.
Cause

Solution

NOTE: Connecting the computer to a live AC outlet prolongs the
life of the RTC battery.

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 8.1, 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.

Check the Computer Setup settings to make sure the
internal system speaker is not muted (this setting does not
affect the external speakers).

Make sure the external speakers are properly connected
and powered on and that the speakers' volume control is set
correctly.

Use the system volume control available in the operating
system to make sure the speakers are not muted or to
increase the volume.

Poor performance.
Cause

Solution

Processor is too hot.

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.

Make sure fans are connected and working properly (some
fans only operate when needed).

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.

Solving general problems

Poor performance.
Cause

Solution

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.

Add more memory.

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

Type msconfig, and then press Enter.

On the Startup tab of the System Configuration Utility,
clear applications that you do not want to launch
automatically, and the click OK.

In Windows 8.1:

Some software applications, especially games, are stressful on
the graphics subsystem.

Cause unknown.

On the Start screen, right-click, and then select the All
apps icon.

Under Windows System, click Run.

Type msconfig, and then press Enter.

On the Startup tab of the System Configuration Utility,
clear applications that you do not want to launch
automatically, and the click OK.

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.

Add more memory.

Upgrade the graphics solution.

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:

Ensure that the computer air vents are not blocked and the
processor cooling fan is running.

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.

If fan a plugged in and not spinning, replace it.

A fan may be blocked or not turning.
OR
The heat sink is not properly attached to the processor.

Chapter 6 Troubleshooting without diagnostics

Solving hard drive problems
Hard drive error occurs.
Cause

Solution

Hard disk has bad sectors or has failed.

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 8.1, 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.

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 8.1, 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 79 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.

Solving hard drive problems

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.

▲

Perform Drive Protection System (DPS) testing in system
ROM.

System files missing or not properly installed.

Insert bootable media and restart the computer.

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.

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.

Check SATA cable connections.

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.

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 89 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.

Use the task manager to close programs that do not
respond.

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.

Chapter 6 Troubleshooting without diagnostics

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.
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

Monitor settings in the computer are not compatible with the
monitor.

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 8.1, from the Start
screen, type c, and then select Control Panel from the list
of applications.

2.
Monitor is configured to use an input that is not active.

Expand the Resolution box, and then use the sliding control
to reset the resolution.

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.

Reseat DIMMs. Power on the system.

Replace DIMMs one at a time to isolate the faulty module.

Replace third-party memory with HP memory.

Solving display problems

Solution
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.

Replace the system board.

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

Monitor is not capable of displaying requested resolution.

Change requested resolution.

The picture is broken up, rolls, jitters, or flashes.

Cause

Solution

The monitor connections may be incomplete or the monitor may
be incorrectly adjusted.

Chapter 6 Troubleshooting without diagnostics

Be sure the monitor cable is securely connected to the
computer.

The picture is broken up, rolls, jitters, or flashes.
Cause

Monitor needs to be degaussed.

Solution
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.

Fluorescent lights or fans may be too close to the monitor.

Degauss the monitor. Refer to the documentation that came with
the monitor for instructions.

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.

“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.

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.

On the Advanced Boot Options screen, use the arrow keys to
highlight the safe mode option you want, and then press
Enter.

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:
1.

Press the Windows logo + l to open the Settings charm.

Solving display problems

“Out of Range” displays on screen.
Cause

Solution
2.

Select Change PC Settings, select General, and then under
Advanced startup, click Restart now.

Select Troubleshoot, select Advanced options, select
Startup Settings, and then click Restart.

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.

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.

Select the monitor’s Auto-Adjustment option in the
monitor’s on-screen display menu.

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

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 8.1, on the Start screen, type ch, and then select
Character Map from the list of applications.

Chapter 6 Troubleshooting without diagnostics

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.
Sound cuts in and out.
Cause

Solution

Processor resources are being used by other open applications.

Shut down all open processor-intensive applications.

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 8.1, 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.

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 8.1, 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 audio problems

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 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.

Chapter 6 Troubleshooting without diagnostics

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.
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.

Install the correct printer driver for the application.

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 printer problems

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.
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.

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.

Chapter 6 Troubleshooting without diagnostics

Windows 7:
1.

Press the Ctrl and Esc keys at the same time (or press the
Windows logo key) to display the Start menu.

Use the arrow keys to select Shut Down and then press
Enter.

After the shutdown is complete, plug the mouse connector
into the back of the computer (or the keyboard) and restart.

Mouse does not respond to movement or is too slow.
Cause

Solution
Windows 8.1:
1.

Press the Windows logo + l to open the Settings charm.

Use the arrow keys to select Power, and then press Enter.

Use the arrow keys to select Shut Down, and then press
Enter.

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.

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.

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.

Solving Hardware Installation Problems

Table 6-1 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 8.1, 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.

Computer will not start.
Cause

Solution

Wrong memory modules were used in the upgrade or memory
modules were installed in the wrong location.

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. DIMM1
must be installed before DIMM2.

Observe the beeps and LED lights on the front of the
computer. Beeps and flashing LEDs are codes for specific
problems.

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.

Chapter 6 Troubleshooting without diagnostics

Reseat DIMMs. Power on the system.

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
2.

Replace DIMMs one at a time to isolate the faulty module.
NOTE: DIMM1 or XMM1 must always be installed. DIMM1
must be installed before DIMM2.

Replace third-party memory with HP memory.

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 6-2 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.

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.

Under Tasks, select Manage network connections.

Click Local Area Connection.

Click the Properties button.

Click the Configure button.

Click the Power Management tab, then select Allow this
device to wake the computer.

To enable Wake-on-LAN in Windows 8.1:
1.

From the Start screen, type c, and then select Control Panel
from the list of applications.

Select Network and Sharing Center, and then click the
Ethernet link next to the connection.

Click the Properties button.

Click the Configure button.

Click the Power Management tab, then enable the
appropriate Wake-on LAN option.

Solving Network Problems

Network driver does not detect network controller.
Cause

Solution

Network controller is disabled.

Run Computer Setup and enable network controller.

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 8.1, 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.

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 8.1, from the Start screen,
type c, select Control Panel from the list of applications, and then
select Device Manager.

Network controller is disabled.

Run Computer Setup and enable network controller.

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.

Chapter 6 Troubleshooting without diagnostics

Table 6-2 Solving Network Problems (continued)
Diagnostics reports a failure.
Cause

Solution

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.

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 8.1, 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.

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 8.1.
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.

Solving Network Problems

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.
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.

Chapter 6 Troubleshooting without diagnostics

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.

Reseat DIMMs. Power on the system.

Replace DIMMs one at a time to isolate the faulty module.

Replace third-party memory with HP memory.

Replace the system board.

Solving USB flash drive problems
If you encounter USB flash drive problems, common causes and solutions are listed in the following table.
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.

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

Solving USB flash drive problems

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 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.)

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.

Click Internet Options.

In the Browsing history section on the General tab, click the
Delete button.

Select the Cookies check box and click the Delete button.

Windows 8.1:
1.

Chapter 6 Troubleshooting without diagnostics

From the Start screen, type c, and then select Control Panel
from the list of applications.

Unable to connect to the Internet.
Cause

Solution
2.

Click Internet Options.

In the Browsing history section on the General tab, click the
Delete button.

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.
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 89 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

Solving software problems

Computer will not continue after HP logo screen displays.
Cause

Solution
Windows installation disc or a system repair disc that you created
earlier.
In Windows 8.1, 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.

Select Change PC Settings, select General, and then under
Advanced startup, click Restart now.

Select Troubleshoot, select Advanced options, and then
select Automatic Repair.
Windows starts Automatic Repair.

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.

Chapter 6 Troubleshooting without diagnostics

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 nonerror 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 55.

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.
Control panel message

Description

Recommended action

101-Option ROM Checksum Error

System ROM or expansion board option ROM
checksum.

Verify the correct ROM.

Flash the ROM if needed.

If an expansion board was recently added,
remove it to see if the problem remains.

Clear CMOS. (See Appendix B, Password
security and resetting CMOS
on page 95.)

If the message disappears, there may be a
problem with the expansion card.

Replace the system board.

Clear CMOS. (See Appendix B, Password
security and resetting CMOS
on page 95.)

Replace the system board.

103-System Board Failure

162-System Options Not Set

DMA or timers.

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.

POST numeric codes and text messages

Control panel message

Description

Recommended action
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.

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.

Run Computer Setup or Windows utilities.

Make sure the memory module(s) are
installed properly.

If third-party memory has been added,
test using HP-only memory.

Verify proper memory module type.

Ensure memory modules are correctly
installed.

Verify proper memory module type.

Remove and replace the identified faulty
memory module(s).

If the error persists after replacing
memory modules, replace the system
board.

A memory module in memory socket identified
in the error message is missing critical SPD
information, or is incompatible with the
chipset.

Verify proper memory module type.

Try another memory socket.

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.

If additional memory was recently added,
remove it to see if the problem remains.

Check product documentation for
memory support information.

Reconnect keyboard with computer
turned off.

Check connector for bent or missing pins.

Ensure that none of the keys are
depressed.

Replace keyboard.

201-Memory Error

213-Incompatible Memory Module in Memory
Socket(s) X, X, ...

301-Keyboard Error

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.

Chapter 7 POST error messages

RAM failure.

Keyboard failure.

Control panel message

Description

Recommended action

303-Keyboard Controller Error

I/O board keyboard controller.

Reconnect keyboard with computer
turned off.

Replace the system board.

Reconnect the keyboard with computer
turned off.

Ensure that none of the keys are
depressed.

Replace the keyboard.

Replace the system board.

Clear CMOS. (See Appendix B, Password
security and resetting CMOS
on page 95.)

Verify monitor is attached and turned on.

304-Keyboard or System Unit Error

501-Display Adapter Failure

Keyboard failure.

Graphics display controller.

510-Flash Screen Image Corrupted

Flash Screen image has errors.

Reflash the system ROM with the latest BIOS
image.

512-Chassis, Rear Chassis, or Front Chassis Fan
not Detected

Fan is not connected or may have
malfunctioned.

Reseat fan.

Reseat fan cable.

Replace fan.

Reseat fan.

Reseat fan cable.

Replace fan.

514-CPU or Chassis Fan not Detected

Fan is not connected or may have
malfunctioned.

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.

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.)

Determine if hard drive is giving correct
error message. Run the Drive Protection
System test under using F2 Diagnostics
when booting the computer.

Apply hard drive firmware patch
if applicable. (Available at
http://www.hp.com/support.)

Back up contents and replace hard drive.

Try a different USB key device for
provisioning.

If the error persists, update to the latest
BIOS version and ME firmware version.

If the error still persists, replace the
system board.

Reboot the computer.

If the error persists, update to the latest
BIOS version and ME firmware version.

If the error still persists, replace the
system board.

Update to the latest ME firmware version.

2212-USB Key Provisioning failure writing to
device

2217-ME Firmware Version request failure

2218-ME Firmware Version should be updated

USB device used for USB key provisioning will
not allow BIOS to update provision file
properly.

ME firmware is not properly responding to BIOS
query for version information.

ME firmware must be updated to match current
functionality contained in the system BIOS.

POST numeric codes and text messages

Control panel message

2219-USB Key Provisioning file has invalid
header identifier

2220-USB Key Provisioning file has mismatch
version

Provisioning file contained on the USB key has
been corrupted or is not a valid version for the
current ME firmware.

Provisioning file contained on the USB key is
not a valid version for the current ME firmware.

Recommended action
2.

If the error persists and system BIOS has
been recently updated, restore previous
system BIOS version.

If the error still persists, replace the
system board.

Recreate the provisioning file using third
party management console software.

If the error persists and system BIOS has
been recently updated, restore previous
system BIOS version. Otherwise, update
the ME firmware version.

If the error still persists, replace the
system board.

Reboot the computer.

If the error persists and system BIOS has
been recently updated, restore previous
system BIOS version. Otherwise, update
the ME firmware version.

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.

Reconnect keyboard with computer
turned off.

Check connector for bent or missing pins.

Ensure that none of the keys are
depressed.

Replace keyboard.

Parity Check 2

Description

Chapter 7 POST error messages

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.
Activity

Beeps

Possible cause

Recommended action

White Power LED On.

None

Computer on.

None

White 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.

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.

Processor thermal
protection activated:

Ensure that the computer air vents are not
blocked and the cooling fan is running.

A fan may be blocked or not
turning.

Open hood, press power button, and see if the
fan spins. If the processor fan is not spinning,
make sure the fan's cable is plugged onto the
system board header.

If fan is plugged in, but is not spinning, then
replace fan.

Contact an authorized reseller or service
provider.

Check if a device is causing the problem by
removing ALL attached devices. 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.

Replace the power supply.

Replace the system board.

OR
The heat sink/fan assembly
is not properly attached to
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.

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.

Power failure (power supply
is overloaded).

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.

Replace DIMMs one at a time to isolate the
faulty module.

Replace third-party memory with HP memory.

Replace the system board.

Interpreting POST diagnostic front panel LEDs and audible codes

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.

Pre-video graphics error.

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.

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.

Invalid ROM based on bad
checksum.

Reflash the system ROM with the latest BIOS
image.

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.

Unplug the AC power cord from the computer,
wait 30 seconds, then plug the power cord
back in to the computer.

Replace the system board.

System does not power on and
LEDs are not flashing.

None

System powers on but is
unable to boot.

System unable to power on.

Press and hold the power button for less than 4
seconds. If the hard drive LED turns white, the power
button is working correctly.
▲

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 white
then:

Chapter 7 POST error messages

Check that the unit is plugged into a working
AC outlet.

Replace the power supply.

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 55 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.
To disable the power-on or setup password features, or to clear the power-on or setup passwords, complete
the following steps:

Resetting the password jumper

Shut down the operating system properly, then turn off the computer and any external devices, and
disconnect the power cord from the power outlet.

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.

Remove the access panel.

Locate the header and jumper.
NOTE: The password jumper is either green or blue so that it can be easily identified. For assistance
locating the password jumper and other system board components, see the system board components
image at System board callouts on page 49.

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.

Replace the access panel and reconnect the external equipment.

Plug in the computer and turn on power. Allow the operating system to start. This clears the current
passwords and disables the password features.

Shut down the computer, unplug the power, and disconnect the external equipment.

10. Remove the access panel.
11. Place the jumper on pins 1 and 2.
12. Replace the access panel.
13. Reconnect the external equipment and plug in the computer.

Changing a Setup or Power-On password
To change the power-on or setup password, complete the following steps:
1.

Turn on or restart the computer.
To change the Setup password, go to step 2.
To change the Power-on password, go to step 3.

To change the Setup password, as soon as the computer turns on:
- Press the Esc key while “Press the ESC key for Startup Menu” message is displayed.
- Press the F10 key to enter Computer Setup.

Chapter 8 Password security and resetting CMOS

When the key icon appears, type your current password, a slash (/) or alternate delimiter character,
your new password, another slash (/) or alternate delimiter character, and your new password again as
shown:
current password/new password/new password
NOTE:

Type the new password carefully since the characters do not appear on the screen.

Press Enter.

The new password will take effect the next time the computer is restarted.

Deleting a Setup or Power-On password
To delete the power-on or setup password, complete the following steps:
1.

Turn on or restart the computer.
To delete the Setup password, go to step 2.
To delete the Power-on password, go to step 3.

To delete the Setup password, as soon as the computer turns on:
- Press the Esc key while “Press the ESC key for Startup Menu” message is displayed.
- Press the F10 key to enter Computer Setup.

Press Enter.

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.
1.

Turn off the computer and any external devices, and disconnect the power cord from the power outlet.

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.

Remove the access panel.

Deleting a Setup or Power-On password

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 55 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.

NOTE: For assistance locating the CMOS button and other system board components, see the system
board components image at System board callouts on page 49.
5.

Replace the access panel.

Reconnect the external devices.

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 55.

Chapter 8 Password security and resetting CMOS

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
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
You can run the diagnostics from one of three places, depending on your preference and the health of the
computer.
1.

Turn on the computer and press Esc repeatedly until the BIOS Boot Menu appears.

Press F2 or select Diagnostics (F2).
Pressing F2 signals the system to search for the diagnostics in the following locations:
a.

A connected USB drive (to download the diagnostics tools to a USB drive, see the instructions in
Downloading HP PC Hardware Diagnostics (UEFI) to a USB device on page 99)

The hard disk drive

A core set of diagnostics in the BIOS (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 (UEFI) to a USB device
NOTE: Instructions for downloading HP PC Hardware Diagnostics (UEFI) are provided in English only.
There are two options to download HP PC Hardward Diagnostics to USB device.
Option 1: HP PC Diagnostics homepage–Provides access to the latest UEFI version
1.

Go to http://www.hp.com/go/techcenter/pcdiags.

Click the UEFI Dowload link, and then select Run.

Option 2: Support and Drivers pages–Provides downloads for a specific product for earlier and later
versions.

Why run HP PC Hardware Diagnostics

Go to http://www.hp.com.

Point to Support, located at the top of the page, and then click Download Drivers.

In the text box, enter the product name, and then click Go.
– or –
Click Find Now to let HP automatically detect your product.

Select your computer model, and then select your operating system.

In the Diagnostic section, click HP UEFI Support Environment.

Click Download, and then select Run.

100 Chapter 9 HP PC Hardware Diagnostics

10 System backup and recovery
Backing up, restoring, and recovering in Windows 8.1 or
Windows 8
Your computer includes tools provided by HP and Windows to help you safeguard your information
and retrieve it if you ever need to. These tools will help you return your computer to a proper working state
or even back to the original factory state, all with simple steps.
This section provides information about the following processes:
●

Creating recovery media and backups

●

Restoring and recovering your system

NOTE: This section describes an overview of backing up, restoring, and recovering options. For more details
about the tools provided, see Help and Support. From the Start screen, type help, and then select Help and
Support.

Creating recovery media and backups
Recovery after a system failure is only as good as your most recent backup.
1.

After you successfully set up the computer, create recovery media. This step creates a backup of the
recovery partition on the computer. The backup can be used to reinstall the original operating system in
cases where the hard drive is corrupted or has been replaced.
You will use a USB flash drive to create a bootable recovery drive that can be used to troubleshoot a
computer that is unable to start. The USB flash drive can be used to reinstall the original operating
system and the programs that were installed at the factory.
NOTE:

Any information on the USB flash drive will be erased before the recovery media is created.

●

To create the Windows 8.1 recovery media, from the Start screen, type recovery drive, then
click on Create a recovery drive. Follow the on-screen instructions to continue.

●

To create the Windows 8 recovery media, from the Start screen, type recovery drive, and
then click on Settings, then click on Create a recovery drive. Follow the on-screen instructions to
continue.

Use the Windows tools to create system restore points and create backups of personal information. For
more information and steps, see Help and Support. From the Start screen, type help, and then select
Help and Support.

Restoring and recovering using Windows tools
Windows offers several options for restoring from backup, refreshing the computer, and resetting the
computer to its original state. For more information and steps, see Help and Support. From the Start screen,
type help, and then select Help and Support.

Backing up, restoring, and recovering in Windows 8.1 or Windows 8 101

Using Reset when the system is not responding
NOTE: You may be prompted by User Account Control for your permission or password when you perform
certain tasks. To continue a task, select the appropriate option. For information about User Account Control,
see Help and Support. From the Start screen, type help, and then select Help and Support.
IMPORTANT: Reset does not provide backups of your information. Before using Reset, back up any
personal information you wish to retain.
If Windows recovery steps are not working and the system is not responding, use these steps to start Reset:
1.

If possible, back up all personal files.

If possible, check for the presence of the HP Recovery partition:
●

For Windows 8.1, from the Start screen, type pc, and then select This PC.

●

For Windows 8, from the Start screen, type c, and then select Computer.

NOTE: If the HP Recovery partition is not listed, or you cannot check for its presence, you must recover
using the recovery media you created; see Recovery using the Windows recovery USB flash drive
on page 102. Or you must use the Windows operating system media and the Driver Recovery media
(purchased separately); see Recovery using Windows operating system media (purchased separately)
on page 103.
3.

If the HP Recovery partition is listed, restart the computer, and then press esc while the HP logo is
displayed. The computer Startup Menu displays.

Press f11 to select the System Recovery option.

Choose your keyboard layout.

Select Troubleshoot.

Select Reset.

Follow the on-screen instructions to continue.

Recovery using the Windows recovery USB flash drive
To recover your system using the recovery USB flash drive you previously created:
NOTE: If you did not create a recovery USB flash drive or the one you created does not work, see Recovery
using Windows operating system media (purchased separately) on page 103.
1.

If possible, back up all personal files.

Insert the recovery USB flash drive you created into a USB port on your computer.

Restart the computer and as soon as you see the HP logo screen, press f9 to display a list of boot
devices. Use the arrow keys to select your USB flash drive from the UEFI Boot Sources list. Press Enter
to boot from that device.

Choose your keyboard layout.

Select Troubleshoot.

Select Refresh your PC.

Follow the on-screen instructions.

102 Chapter 10 System backup and recovery

Recovery using Windows operating system media (purchased separately)
To order a Windows operating system DVD, contact support. Go to http://www.hp.com/support, select your
country or region, and follow the on-screen instructions.
CAUTION: Using Windows operating system media completely erases the 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 operating system media:
NOTE: This process takes several minutes.
1.

If possible, back up all personal files.

Restart the computer, and then follow the instructions provided with the Windows operating system
media to install the operating system.

When prompted, press any keyboard key.

Follow the on-screen instructions.

After the repair is completed and the Windows desktop appears:
1.

Remove the Windows operating system media, and then insert the Driver Recovery media.

Install the Hardware Enabling Drivers first, and then install Recommended Applications.

Backing up, restoring, and recovering in Windows 7
Your computer includes tools provided by HP and Windows to help you safeguard your information
and retrieve it if you ever need to. These tools will help you return your computer to a proper working state
or even back to the original factory state, all with simple steps.
This section provides information about the following processes:
●

Creating recovery media and backups

●

Restoring and recovering your system

NOTE: This section describes an overview of backing up, restoring, and recovering options. For more details
about the Windows Backup and Restore tools provided, see Help and Support. To access Help and Support,
select Start > Help and Support.
Recovery after a system failure is only as good as your most recent backup.

Backing up, restoring, and recovering in Windows 7 103

After you successfully set up the computer, create recovery media. This media can be used to reinstall
the original operating system in cases where the hard drive is corrupted or has been replaced. See
Creating recovery media on page 104.

As you add hardware and software programs, create system restore points. A system restore point is a
snapshot of certain hard drive contents saved by Windows System Restore at a specific time. A system
restore point contains information that Windows uses, such as registry settings. Windows creates a
system restore point for you automatically during a Windows update and during other system
maintenance (such as a software update, security scanning, or system diagnostics). You can also
manually create a system restore point at any time. For more information and steps for creating
specific system restore points, see Help and Support. To access Help and Support, select Start > Help
and Support.

As you add photos, video, music, and other personal files, create a backup of your personal information.
If files are accidentally deleted from the hard drive and they can no longer be restored from the Recycle
Bin, or if files become corrupted, you can restore the files that you backed up. In case of system failure,
you can use the backup files to restore the contents of your computer. See Backing up your information
on page 106.

NOTE: HP recommends that you print the recovery procedures and save them for later use, in case of
system instability.

Creating recovery media
After you successfully set up the computer, create recovery media. The media can be used to reinstall the
original operating system in cases where the hard drive is corrupted or has been replaced.
There are two types of recovery media. To determine which steps to follow for your computer:
1.

Click the Start button.

Click All Programs.
●

If Security and Protection is listed, continue with the steps in Creating recovery media using HP
Recovery Manager (select models only) on page 104.

●

If Productivity and Tools is listed, continue with the steps in Creating recovery discs with HP
Recovery Disc Creator (select models only) on page 105.

Creating recovery media using HP Recovery Manager (select models only)
●

To create recovery discs, your computer must have a DVD writer. Use DVD+R or DVD-R discs (purchased
separately). The discs you use will depend on the type of optical drive you are using.
NOTE:

DVD+R DL, DVD-R DL, or DVD±RW disc are not supported.

●

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.

104 Chapter 10 System backup and recovery

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.
To create recovery discs:
1.

Close all open programs.

Click the Start button, click All Programs, click Security and Protection, click Recovery Manager, and
then click HP Recovery Media Creation. If prompted, click Yes to allow the program to continue.

Click Create recovery media using blank DVD(s), and then click Next.

Follow the on-screen instructions. Label each disc after 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 USB flash drive with a capacity of at least 8 GB.
NOTE: Recovery Media Creation formats the USB flash drive, deleting any files on it.
1.

Close all open programs.

Insert the USB flash drive into a USB port on the computer.

Click the Start button, click All Programs, click Security and Protection, click Recovery Manager, and
then click Recovery Media Creation.

Click Create recovery media with a USB flash drive, and then click Next.

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.

Follow the on-screen instructions. When the process is complete, label the USB flash drive and store it
in a secure place.

Creating recovery discs with HP Recovery Disc Creator (select models only)
HP Recovery Disc Creator is a software program that offers an alternative way to create recovery discs on
select models. After you successfully set up the computer, you can create recovery discs using HP Recovery
Disc Creator. The recovery discs allow you to reinstall your original operating system as well as select drivers
and applications if the hard drive becomes corrupted. HP Recovery Disc Creator creates two kinds of recovery
discs:
●

Windows 7 operating system DVD—Installs the operating system without additional drivers or
applications.

●

Driver Recovery DVD—Installs specific drivers and applications only, in the same way that the HP
Software Setup utility installs drivers and applications.

To create recovery discs, your computer must have a DVD writer. Use any of the following types of discs
(purchased separately): DVD+R, DVD+R DL, DVD-R, DVD-R DL, or DVD±RW. The discs you use will depend on
the type of optical drive you are using.
Creating recovery discs
NOTE: The Windows 7 operating system DVD can be created only once. The option to create that media will
not be available after you create a Windows DVD.
To create the Windows DVD:

Backing up, restoring, and recovering in Windows 7 105

Select Start > All Programs > Productivity and Tools > HP Recovery Disc Creator.

Select Windows disk.

From the drop-down menu, select the drive for burning the recovery media.

Click the Create button to start the burning process. Label the disc after you create it, and store it in a
secure place.

After the Windows 7 operating system DVD has been created, create the Driver Recovery DVD:
1.

Select Start > All Programs > Productivity and Tools > HP Recovery Disc Creator.

Select Driver disk.

From the drop-down menu, select the drive for burning the recovery media.

Click the Create button to start the burning process. Label the disc after you create it, and store it in a
secure place.

Backing up your information
You should create 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. Your initial and subsequent backups allow you to restore your data and settings if a failure occurs.
You can back up your information to an optional external hard drive, a network drive, or discs.
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 directories.

●

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.

●

When backing up to discs, number each disc after removing it from the drive.

NOTE: For detailed instructions on various backup and restore options, perform a search for these topics in
Help and Support. To access Help and Support, select Start > Help and Support.
NOTE: You may be prompted by User Account Control for your permission or password when you perform
certain tasks. To continue a task, select the appropriate option. For information about User Account Control,
see Help and Support: Select Start > Help and Support.
To create a backup using Windows Backup and Restore:
NOTE: The backup process may take over an hour, depending on file size and the speed of the computer.
1.

Select Start > All Programs > Maintenance > Backup and Restore.

Follow the on-screen instructions to set up your backup.

System Restore
If you have a problem that might be due to software that you installed on your computer, or if you want to
restore the system to a previous state without losing any personal information, use System Restore to return
the computer to a previous restore point.
NOTE: Always use this System Restore procedure before you use the System Recovery feature.
To start System Restore:

106 Chapter 10 System backup and recovery

Close all open programs.

Click the Start button, right-click Computer, and then click Properties.

Click System protection, System Restore, click Next, 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 came on media
included in the computer accessory box, and any software programs you installed after purchase. Any
personal files must be restored from backups you made.
If you were not able to create system recovery DVDs or USB flash drive, you can order a recovery disc set
from support. Go to http://www.hp.com/support, select your country or region, and follow the on-screen
instructions.
NOTE: Always use the System Restore procedure before you use the System Recovery program. See
System Restore on page 106.
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 107 or System Recovery when Windows is not responding on page 108.

●

Recovery media — Run System Recovery from recovery media that you have created from files stored
on your hard disk drive or purchased separately. See System Recovery using recovery media (select
models only) on page 108.

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. If you have not already created this
media, follow the instructions in Creating recovery media on page 104.
If the computer is working and Windows 7 is responding, use these steps to perform a System Recovery:
1.

Turn off the computer.

Disconnect all peripheral devices from the computer except the monitor, keyboard, and mouse.

Turn on the computer.

When Windows has loaded, click the Start button, and then click All Programs.

●

If Security and Protection is listed, continue with step 5.

●

If Productivity and Tools is listed, follow the steps in System Recovery when Windows is not
responding on page 108.

Click Security and Protection, click Recovery Manager, and then click Recovery Manager. If prompted,
click Yes to allow the program to continue.

Backing up, restoring, and recovering in Windows 7 107

Under I need help immediately, click System Recovery.

Select Yes, and then click Next. Your computer restarts.

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.

System Recovery begins. After System Recovery is complete, click Finish to restart the computer.

10. When Windows has loaded, shut down the computer, reconnect all peripheral devices, and then turn the
computer back on.

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.

Disconnect all peripheral devices from the computer, except the monitor, keyboard, and mouse.

Press the power button to turn on the computer.

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.

At the HP Recovery Manager screen, follow the on-screen instructions to continue.

When Windows has loaded, shut down the computer, reconnect all peripheral devices, and then turn the
computer back on.

System Recovery using recovery media (select models only)
Use the steps provided in this section if you created recovery media using Creating recovery media using HP
Recovery Manager (select models only) on page 104. If you used HP Recovery Disc Creator to create a
Windows 7 operating system DVD and a Driver Recovery DVD, use the steps in Using HP Recovery Disc
operating system discs (select models only) on page 109.
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 perform a System Recovery using recovery media:
1.

If you are 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.

Click the Start button, and then click Shut Down.
or
If the computer is not responding, press and hold the power button for approximately 5 seconds or until
the computer turns off.

Disconnect all peripheral devices from the computer except the monitor, keyboard, and mouse.

Press the power button to turn on the computer, and press Esc as the computer is powering on to
display 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.

108 Chapter 10 System backup and recovery

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.

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.

If you are prompted to insert the next recovery disc, do so.

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.

Using HP Recovery Disc operating system discs (select models only)
Use the steps provided in this section if you used HP Recovery Disc Creator to create a Windows 7 operating
system DVD and a Driver Recovery DVD. If you created recovery media using Creating recovery media using
HP Recovery Manager (select models only) on page 104. use the steps in System Recovery using recovery
media (select models only) on page 108.
If you cannot use the recovery discs you previously created using the HP Recovery Disc Creator (select
models only), you must purchase a Windows 7 operating system DVD to reboot the computer and repair the
operating system.
To order a Windows 7 operating system DVD, contact support. Go to http://www.hp.com/support, select your
country or region, and follow the on-screen instructions.
CAUTION: Using a Windows 7 operating system DVD completely erases the 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 a Windows 7 operating system DVD:
NOTE: This process takes several minutes.
1.

If possible, back up all personal files.

Restart the computer, and then insert the Windows 7 operating system DVD into the optical drive before
the Windows operating system loads.
NOTE: If the computer does not boot to the DVD, restart the computer and 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 DVD is inserted. Press Enter to boot from
that device.

When prompted, press any keyboard key.

Follow the on-screen instructions.

Click Next.

Select Install now.

Follow the on-screen instructions.

Backing up, restoring, and recovering in Windows 7 109

After the repair is completed:
1.

Eject the Windows 7 operating system DVD and then insert the Driver Recovery DVD.

Follow the on-screen instructions to install the Hardware Enabling Drivers first, and then install
Recommended Applications.

110 Chapter 10 System backup and recovery

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.

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.

The diameter of the wire must be a minimum of 0.75 mm2 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.

General Requirements 111

Country-Specific Requirements
Additional requirements specific to a country are shown in parentheses and explained below.
Country

Accrediting Agency

Country

Accrediting Agency

Australia (1)

EANSW

Italy (1)

IMQ

Austria (1)

OVE

Japan (3)

METI

Belgium (1)

CEBC

Norway (1)

NEMKO

Canada (2)

CSA

Sweden (1)

SEMKO

Denmark (1)

DEMKO

Switzerland (1)

SEV

Finland (1)

SETI

United Kingdom (1)

BSI

France (1)

UTE

United States (2)

Germany (1)

VDE

The flexible cord must be Type HO5VV-F, 3-conductor, 0.75mm2 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.

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.

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 mm2 conductor size. Wall plug must be a two-pole
grounding type with a Japanese Industrial Standard C8303 (7A, 125V) configuration.

112 Appendix A Power Cord Set Requirements

Statement of Volatility
HP confirms that AMD-based business desktop HP EliteDesk 400 G1 systems contain DDR3 volatile memory
(memory amount depends on the customer configuration). In addition, the motherboard in the condition
originally shipped without subsequent modification or the addition or installation of any applications,
features, or functionality, contain the following nonvolatile memory: Real Time Clock battery backed-up
configuration memory (256 Bytes), DIMM Serial Presence Detect (SPD) configuration data (256 Bytes per
module, 128 Bytes programmable), Serial Peripheral Interface (SPI) ROM for System BIOS (8M Bytes) and
Super I/O’s: masked keyboard ROM (overall 2K Bytes). In addition, these units contain a Trusted Platform
Module (TPM) that contains 16K Bytes of non-volatile memory for user data. The volatile memory will not
hold any user data once power has been removed for 30 seconds or longer.
The following procedure shows the steps that should be taken to restore the Non-Volatile memory found in
the Intel-based HP ProDesk 400 G1 systems:
1.

Download the latest BIOS (system ROM) from the HP website.

Follow the instructions to flash the BIOS that are found on the website.
Flashing the BIOS will reset it back to factory settings.

Turn on the system, and while system is powering on, and after the HP splash screen, press the F10 key
to enter BIOS setup screen.

Select Security > System Security from the main menu. If the Embedded Security Device Support
option is set to “Disable”, skip to step 7.

To erase all security keys from the TPM:
Under Embedded Security Device in the System Security menu, configure Reset to Factory Settings to
Reset.
NOTE: Although the TPM security keys will be cleared, data in the non-volatile memory indices may
not be. Data stored in these indices should not contain security sensitive information. If an application
locks down and secures the non-volatile indices, these indices cannot be cleared.

Press F10 to accept changes.

To clear the secure boot key database:
a.

Enter the F10 setup utility.

Go to the Security menu.

Select Secure Boot Configuration.

In the Key Management section, select clear Secure boot keys.

Use space key to select clear.

Press the F10 key to accept changes.

From the main menu select File > Save Changes and Exit.

If the Ownership Tag or Asset Tag is set, manually clear it under Security > System Ids.

Select File > Save Changes and Exit.

113

10. To clear the Setup or Power-On passwords if set, and clear any other settings, power down the
computer and remove the AC power cord and the computer hood.
11. Locate the green/blue two pin password jumper on header E49 (labeled PSWD) and remove it.
12. Remove the AC power, wait 10 seconds until the unit AC power has drained out, then press the clear
CMOS button. This is typically a yellow push button (labeled CMOS).
13. Replace the hood and AC power cord and turn the computer on. The passwords are now cleared and all
other user-configurable, non-volatile memory settings are reset to their factory default values.
14. Enter the F10 setup utility.
15. Select File > Default Setup > Restore Factory Settings as Default. This will set the default settings
back to the factory defaults.
16. Select File > Apply Defaults and Exit.
17. Shut down the computer, remove the AC power cord and place the (blue/green) jumper back on header
E49. Replace the computer hood and power cord.
If Computrace is enabled on the computer, see the service provider for instruction to disable the feature.

114 Appendix B Statement of Volatility

Specifications
Table C-1 Specifications
Dimensions (with stand)
Height

6.9 in

175 mm

Width

7.0 in

177 mm

Depth

1.3 in

34 mm

Approximate Weight

2.9 lb

1.3 kg

Operating

50° to 95°F

10° to 35°C

Nonoperating

-22° to 140°F

-30° to 60°C

Temperature Range

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

10-90%

Nonoperating (38.7°C max wet bulb)

5-95%

Operating

10,000 ft

3048 m

Nonoperating

30,000 ft

9144 m

Maximum Altitude (unpressurized)

Power Supply

Operating Voltage Range

90-264 VAC

Rated Voltage Range1

100-240 VAC

Rated Line Frequency

50-60 Hz

Operating Line Frequency

47-63 Hz

Standard efficiency

65W, 87% efficient

DC Output

+19.5V

Current Leakage (NFPA 99)

< 250 μA

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.

115

Index
A
access panel
illustrated 5
removal and replacement
antenna cover 8
audible codes 93
audio problems 75

B
backup and recovery, Windows 7
103
Backup and Restore, Windows 7
106
backups
creating Windows 7 104, 106
battery
disposal 15
removal and replacement 30
battery replacement 30
beep codes 93
booting options
Full Boot 89
Quick Boot 89
C
cable management 16
cable pinouts, SATA data 16
cautions
AC power 10
cables 15
electrostatic discharge 10
keyboard cleaning 13
keyboard keys 14
changing a Power-On password 96
changing a Setup password 96
cleaning
computer 13
mouse 14
safety precautions 13
CMOS
backing up 95
clearing and resetting 97
computer
specifications 115
computer cleaning 13

116 Index

Computer Setup
access problem 66
country power cord set
requirements 112
Customer Support 64
D
deleting a Power-On password 97
deleting a Setup password 97
disassembly preparation 17
drive cage
removal and replacement 37
Driver Recovery DVD,
creating 105
using for restore 109
Driver Recovery media, Windows
103
Driver Recovery media, Windows
8.1 103
E
electrostatic discharge (ESD) 10
preventing damage 11
error
codes 89, 93
messages 89
external antennas
removal and replacement 43
F
F10 Setup
access problem 66
f11 recovery, Windows 8 101
f11 recovery, Windows 8.1 101
fan
illustrated 8
removal and replacement 36
flash drive problems 85
flashing LEDs 93
front bezel
illustrated 5
removal and replacement 25
front panel components
ProDesk 400 2

G
general problems 66
grounding methods 11
H
hard drive
installation 19
proper handling 15
removal 19
removal and replacement 19
SATA characteristics 15
hard drive problems 69
hard drive recovery
Windows 101
Windows 7 107
Windows 8.1 101
hard drives
sizes 19
hardware installation problems 79
heat sink
illustrated 8
removal and replacement 33
Help and Support
Windows 7 103
helpful hints 65
HP PC Hardware Diagnostics (UEFI)
downloading 99
HP Recovery Disc Creator, using
105
HP Ultraslim Keyed Cable Lock 8
I
installing
battery 30
hard drive 19
memory 26
Internet access problems 86
K
keyboard
cleaning 13
keyboard problems

L
LED cover
illustrated 8
LEDs
blinking PS/2 keyboard

M
memory
installation 26
problems 84
removal and replacement
socket population 27
specifications 26
memory modules
illustrated 6
monitor problems 71
mouse
cleaning 14
problems 78

N
network problems 81
numeric error codes 89
O
operating guidelines 12
operating system media, Windows
8 103
operating system media, Windows
8.1 103
overheating, prevention 12
P
password
clearing 95
power-on 95
setup 95
passwords 96, 97
POST error messages 89
power cord set requirements
country specific 112
power supply
illustrated 6
operating voltage range 115
Power-On password 96, 97
power-on password 95
printer problems 77
problems
audio 75
Computer Setup 66
F10 Setup 66

flash drive 85
general 66
hard drive 69
hardware installation 79
Internet access 86
keyboard 78
memory 84
monitor 71
mouse 78
network 81
printer 77
software 87
processor
removal and replacement 34
processors
illustrated 6
product ID locations 4
R
rear panel components
ProDesk 400 3
recovery discs, steps for creating
Windows 7 105
recovery discs, using for restore
109
recovery media, creating 105
recovery media, creating Windows
7 104
recovery partition, Windows 8 101
recovery partition, Windows 8.1
101
recovery USB flash drive, steps for
creating Windows 7 105
recovery using Windows 8 operating
system media 103
recovery using Windows 8.1
operating system media 103
removal and replacement
battery 30
drive cage 37
external antennas 43
fan 36
front bezel 18, 25
hard drive 19
heat sink 33
memory 28
processor 34
solid-state drive 41
speaker 23
system board 46

WLAN antennas 50
WLAN module 39
removing
battery 30
hard drive 19
resetting
CMOS 95
password jumper 95
restoring the hard drive, Windows
101
restoring the hard drive, Windows
8.1 101
S
safety and comfort 64
safety precautions
cleaning 13
SATA
connectors on system board 15
data cable pinouts 16
hard drive characteristics 15
SATA power cable
illustrated 7
screws, correct size 14
serial number locations 4
service considerations 14
Setup password 96, 97
setup password 95
software
problems 87
servicing computer 14
solid-state drive
removal and replacement 41
solid-state drives
sizes 19
speaker
illustrated 8
removal and replacement 23
specifications
computer 115
memory 26
static electricity 10
system board
illustrated 5
removal and replacement 46
SATA connectors 15
System Recovery using Windows 7
recovery media 108
System Recovery, Windows 7 107

Index 117

system restore points, creating
Windows 7 104
System Restore, Windows 7 106
T
temperature control 12
tools, servicing 14
Torx T15 screwdriver 14
tower conversion 54
V
ventilation, proper 12
W
Wake-on-LAN feature 81
Windows 7
backing up information 106
backup and recovery 103
Backup and Restore 106
creating backups 104
creating recovery media 104
creating system restore points
104
hard drive recovery 107
Help and Support 103
steps for creating recovery
discs 105
steps for creating recovery
media 104
steps for creating recovery USB
flash drive 105
System Recovery 107
System Recovery using recovery
media 108
System Restore 106
Windows 7 operating system discs
using for restore 109
Windows 7 operating system DVD
creating 105
using for restore 109
Windows 7 operating system media
creating 105
Windows 8
backup and restore 101
Driver Recovery media 103
f11 recovery 101
hard drive recovery 101
operating system DVD 103
recovery partition 101
restoring the hard drive 101

118 Index

Windows 8.1
backup and restore 101
Driver Recovery media 103
f11 recovery 101
hard drive recovery 101
operating system DVD 103
recovery partition 101
restoring the hard drive 101
wireless antenna cables
illustrated 7
WLAN antennas
removal and replacement 50
WLAN module
removal and replacement 39

Source Exif Data:

File Type                       : PDF
File Type Extension             : pdf
MIME Type                       : application/pdf
PDF Version                     : 1.5
Linearized                      : No
Author                          : Win7
Create Date                     : 2015:02:02 15:21:30-06:00
Modify Date                     : 2015:02:02 15:22:18-06:00
Subject                         : Cheetah tools build 5.18 created on November 21, 2014. 04:37 AM
XMP Toolkit                     : Adobe XMP Core 5.2-c001 63.139439, 2010/09/27-13:37:26
Creator Tool                    : AH Formatter V5.1 R1 (5,1,2009,0914) for Windows
Metadata Date                   : 2015:02:02 15:22:18-06:00
Format                          : application/pdf
Description                     : Cheetah tools build 5.18 created on November 21, 2014. 04:37 AM
Creator                         : Win7
Title                           : 
Producer                        : Acrobat Distiller 10.1.13 (Windows)
Document ID                     : uuid:1fca15b7-a629-4f11-9eb8-b1428dc8ff30
Instance ID                     : uuid:64b0d8c5-55ed-4d28-82a7-20e8cfcc4a75
Page Mode                       : UseOutlines
Page Count                      : 126

EXIF Metadata provided by EXIF.tools

HP Pro Desk 400 G1 Desktop Mini Maintenance And Service Guide C04577660

Navigation menu

Versions of this User Manual:

Views

Navigation