HP Dc7800 SFF IPSM Illustrated Parts & Service Map Compaq Small Form Factor Business PC C01155699

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User Manual: HP Illustrated Parts & Service Map - HP Compaq dc7800 Small Form Factor Business PC

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Illustrated Parts & Service Map
HP Compaq dc7800 Small Form Factor
Business PC
© 2007 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change without notice. HP shall not be liable for
technical or editorial errors or omissions contained herein. Intel, Pentium,
Intel Inside, and the Intel logo are trademarks or registered trademarks of the
Intel Corporation and its subsidiaries in the U. S. and other countries.
Document Number 459786-001.

1st Edition September 2007.

Cables
1

SATA HDD cable, 19 inch, 2 straight ends

2

Front I/O with USB and audio cables

391739-001
451143-001

3

Serial port cable assembly, 6-inch cable

453052-001

4

SATA ODD cable, 24 inch, 1 straight, 1 angled end

435263-001

5

Power/LED cable

435261-001

6

Diskette drive cable, 6 inch

454246-001

*

17.7-inch SATA cable, 1 straight end, 1 angled end

453317-001

*Not shown

Key Specifications

Keyboards (not illustrated)

Processor Type

Intel Core 2 Duo, Core 2 Quad, Pentium dual-core, Celeron

RAM Type

DDR2-SDRAM DIMMs, PC2-5300 (667 MHz) non-ECC or
PC2-6400 (800 MHz) non-ECC

Maximum RAM Supported

8 GB

Expansion Slots

•
•
•

1 PCIe-x16
2 PCIe-x1
1 PCI (low profile)

Graphics Adapter

Intel GMA 3100 integrated

Drive Support

•
•
•
•

I/O Interfaces

PS/2, Basic
USB, Basic
USB SmartCard

2 SATA HDD
1 SATA Optical
RAID 1 Support
FDD, Media Card Reader, Removable HDD

Serial (2, 1 optional), parallel (1), USB 2.0 (8), RJ-45 (1), front
and rear audio jacks (2 each), PS/2 ports (2), VGA connector
(1), USB header on system board

Spare Parts

435302-xxx
435382-xxx
435385-xxx

Arabic

-171

Korean (Hangul)

-KD1

Belgian

-181

LA Spanish

-161

BHCSY

-B41

Norwegian

-091

Brazilian Portuguese

-201

PRC

-AA1

Czech

-221

Portuguese

-131

Danish

-081

Romanian*

-271

Finnish

-351

Russian

-251

French

-051

Slovakian

-231

French Arabic

-DE1

Spanish

-071

French Canadian

-121

Swedish

-101

German

-041

Swiss

-111

Greek

-151

Taiwanese

-AB1

Hebrew

-BB1

Thai

-281

Hungarian

-211

Turkish

-141

International

-B31

U.S.

-001

Italian

-061

U.K.

-031

Japanese

-291

*Not

for 435385-xxx

Mass Storage Devices (not illustrated)
Diskette drive with bezel

System Unit
1

Front bezel

451148-001

2

Access panel

451141-001

3

Chassis

not spared

4

Power supply, 240W

437797-001

*

Power supply, 240W, 80% efficient

437798-001

*

Bezel blank, 5.25-inch

335937-001

5

Bezel blank, diskette drive

451151-001

6

Tower stand bracket

451150-001

431452-001

Media card reader, 3.5-inch

407187-001

Media card reader, 5.25-inch

412838-001

16X SATA DVD±RW and CD-RW drive with LightScribe

447310-001

16X SATA DVD-ROM drive

419496-001

48X CD-RW/DVD-ROM combo drive

419497-001

250 GB, 7200-RPM SATA hard drive, 8-MB cache

449980-001

160 GB, 7200-RPM SATA hard drive, 8-MB cache

449979-001

160 GB, 10000-RPM SATA hard drive, 16-MB cache

439995-001

80 GB, 7200-RPM SATA hard drive, 8-MB cache

449978-001

80 GB, 10000-RPM SATA hard drive, 16-MB cache

439994-001

* Not shown

dc7800 Illustrated Parts & Service Map, SFF Chassis

459786-001

page 1

Standard and Optional Boards

Miscellaneous Parts

Memory modules

1

Chassis fan

451144-001

1

512 MB, PC2-5300, CL5

396520-001

2

Fan duct

451145-001

1

1 GB, PC2-5300, CL5

398038-001

3

Fansink with alcohol pad and factory-applied thermal grease

453053-001

1

2 GB, PC2-5300, CL5

450367-001

4

Backwall, LP, includes riser card assy

440498-001

1

512 MB, PC2-6400, CL6

418952-001

5

Backwall, FH

451140-001

1

1 GB, PC2-6400, CL6

418951-001

*

Solenoid lock

451149-001

*

Heatsink retention plate

453318-001

*

Power switch/LED holder

370857-001

*

Mouse, PS2, optical

417966-001

*

Mouse, scroll

390937-001

*

Mouse, optical

390938-001

*

Battery, real-time clock

153099-001

*

Internal speaker

394779-001

*

Second serial port, LP

393601-001

*

Second serial port, FH

392414-001

*

Modem cable

198220-001

Other boards
2

Belkin 802.11a/g WLAN adapter for use in the United States and most of
the world

391866-002

*

Belkin 802.11a/g, WLAN adapter for use in the rest of the world

391866-001

*

nVidia GeForce 8440 GS 256-MB video card with dual-link DVI-I and
TV (S-Video) outputs. LP

445743-001

*

nVidia GeForce 8440 GS 256-MB video card with DMS59 and TV (SVideo) outputs. LP

445744-001

*

DVI-D ADD2 graphics

398333-001

*

1394 card 2 external, 1 internal port, FH

393308-001

*

1394 card 2 external, 1 internal port, LP

393307-001

*

802.11a/b/g, WLAN PCI card, international, LP

356296-B35

*

HP dual-band wireless antenna PCI Adapter, LP

435269-001

*

Intel, Gigabit NIC

398754-001

*

Broadcom 5751 NetXtreme Gigabit Ethernet Controller, LP

435268-001

*

Broadcom 5751 NetXtreme Gigabit Ethernet Controller, FH

430654-001

*

Agere International 56K Modem

398661-001

*

ReadyBoost module, 1 GB

455971-001

*Not shown
LP = Low profile
FH = Full height

System Boards with thermal grease, alcohol pad, and CPU socket cover
3

System board

437793-001

*

System board, excludes ES/CS

451139-001

Intel Celeron Processors with alcohol pad and thermal grease
*

440, 512K cache, 2.00 GHz

449166-001

*

430, 512-KB cache, 1.8 GHz

449165-001

*

420, 512-KB cache, 1.8 GHz

449164-001

Modem RJ-11 adapters (not illustrated)
Austrian

417561-011

Italian

316904-065

Belgian

316904-181

Netherlands

316920-335

Czechoslovakian

234963-221

Polish

316904-241

French

316904-051

Saudi Arabian

316904-AR1

German

316904-045

Scandinavian

382848-DH1

Greek

316904-151

Swiss

417562-111

Hungarian

234963-215

Turkish

316904-141

Israel

316904-BB1

United Kingdom

158593-035

Intel Pentium Dual Core Processors with alcohol pad and thermal grease
*

E2180, 1-MB cache, 2.00 GHz

457656-001

*

E2160, 1-MB cache, 1.80 GHz

457622-001

Intel Core 2 Quad Processor with alcohol pad and thermal grease
*

Q6700, 8-MB cache, 2.66 GHz

455402-001

*

Q6600, 8-MB cache, 2.40 GHz

452451-001

Intel Core 2 Duo Processors with alcohol pad and thermal grease
*

E6850, 4-MB cache, 3.00 GHz

450792-001

*

E6750, 4-MB cache, 2.66 GHz

450791-001

*

E6550, 4-MB cache, 2.33 GHz

450694-001

*

E4500, 2-MB cache, 2.20 GHz

449452-001

*

E4400, 2-MB cache, 2.00 GHz

449451-001

* Not shown
LP = Low profile
FH = Full height

dc7800 Illustrated Parts & Service Map, SFF Chassis

459786-001

page 2

System Board

Computer Setup Menu (Continued)
Heading

Option / Description

Storage (cont)

Storage Options
• Removable Media Boot
• Legacy Diskette Write
• SATA Emulation
DPS Self-Test - Allows you to execute self-tests on ATA hard drives.
Boot Order - Allows you to specify boot order.
• Shortcut to Temporarily Override Boot Order

Security

Setup Password - Allows you to set and enable the setup (Administrator)
password.
Power-On Password - Allows you to set and enable power-on password.
Password Options - When any password exists allows you to lock legacy
resources, enable/disable network server mode, specify password requirement for warm boot, and allows you to enable/disable Setup Browse Mode.
Smart Cover (some models) - Allows you to lock/unlock cover lock and set
status of cover removal sensor.
Device Security (some models) - Enables/disables all I/O ports, audio, network controllers, SMBus controller, and embedded security devices.
Network Service Boot - Enables/disables boot from OS on a server.
System IDs - Allows you to set Asset tag, ownership tag, Chassis serial
number, UUID, and keyboard locale setting.
DriveLock Security - Allows you to assign/modify a hard drive password
for added security.
System Security (some models) - Allows you to enable/disable:
• Data Execution Prevention
• Virtualization Technology
• Virtualization Technology Directed I/O
• Trusted Execution Technology
• Embedded Security Device Support
• OS management of Embedded Security Device through OS
• Virtual Appliance options
• Smart Card BIOS Password Support

System Board Connectors and Jumpers (position of some untitled
components may vary in location)
E49

Password

P24

Front USB

J9

Stacked RJ-45/Dual USB

P3

CPU power

J10

Quad stacked USB

P5

Power button/LED

J20

PCI slot 1

P52

Second serial port

J21

PCI slot 2

P54

First serial port

J31

PCIe X1, slot 1

P6

Internal speaker

J32

PCIe X1, slot 2

P60

SATA0

J41

PCIE X16

P61

SATA1

J50

Parallel port

P62

SATA4

J66

Keyboard connector

P8

CPU fan

J67

Mouse connector

P9

Chassis fan

J69

Video connector

SW50

Clear CMOS

J78

Double stacked line-out/line-in

XBT1

Real-time-clock battery

P1

Main power

XMM1

DIMM 1

P10

Diskette drive

XMM2

DIMM 2

P124

Hood lock

XMM3

DIMM 3

P125

Hood sensor

XMM4

DIMM 4

P150

Media reader/ReadyBoost connector

XU1

Processor

P23

Front audio

Setup Security Level - Provides method to allow users limited access to
change specified setup options without knowing Setup password.
Power

OS Power Management - Allows you to enable/disable Runtime Power
Management, Idle Power Savings, ACPI S3 Hard Disk Reset, ACPI S3 PS2
Mouse Wakeup, USB Wake on Device Insertion (some models), Unique
Sleep State Blink Rates.
Hardware Power Management - Allows you to enable/disable SATA bus
power management.
Thermal - Allows you to control minimum permitted fan idle speed.

Advanced

Execute Memory Test (some models) -Restarts computer and executes
POST memory test.

System Setup and Boot

BIOS Power-On - Allows you to set the computer to turn on at a preset time.

Basic system information regarding system information, setup, power management, hardware,
and passwords is maintained in the Setup Utility held in the system ROM. The Setup Utility is
accessed by pressing the F10 key when prompted (on screen) to do so during the boot sequence.
If the screen prompt opportunity is missed, a restart will be necessary.

Onboard Devices - Allows you to set resources or disable onboard system
devices.
PCI Devices - Lists installed PCI devices with their IRQ settings and allows
you to reconfigure IRQ or disable devices.
PCI VGA Configuration - Allows you to specify which VGA controller will
be used when multiple video adapters are available.

Computer Setup Menu
Heading

Option/Description

File

System Information - Lists the following main system specifications:
•
•
•
•

Product name
SKU number (some models)
Processor type/speed/stepping
Cache Size (L1/L2)

Power-On Options - Allows you to set:
• POST mode - QuickBoot, FullBoot, or FullBoot every 1-30 days.
• POST messages - Enable/disable
• MEBx Setup prompt - Enable/disable or hidden/displayed
• F9 prompt - Enable/disable
• F10 prompt - Enable/disable
• F12 prompt - Enable/disable
• Factory Recovery Boot Support - Enable/disable
• Option ROM prompt - Enable/disable
• WOL After Power Loss - Enable/disable
• Remote wakeup boot source - Remote server/local hard drive
• After Power Loss - Off/on/previous state
• POST delay - None, 5, 10, 15, or 20 seconds
• Limit CPUID

•
•
•
•
•

Bus Options (some models) - Allows you to enable/disable PCI SERR#
Generation and PCI VGA palette snooping.
Device Options - Allows you to set:
• Printer Mode - Bi-Directional, EPP & ECP, Output Only
• Num Lock state at power-on - off/on
• S5 Wake on LAN - enable/disable
• Processor cache - enable/disable
• Integrated video - enable/disable
• Multi-Processor - enable/disable
• Internal speaker - enable/disable
• Monitor Tracking - enable/disable
• NIC PXE Option ROM Download - enable/disable

Memory size/speed/ no. channels
Integrated MAC Address
System BIOS
Chassis serial number
Asset tracking number

About - Displays copyright notice.
Set Time and Date - Allows you to set system time and date.
Flash System ROM - Allows you to select a drive containing a new BIOS.
Replicated Setup - Save to Removable Media and Restore from Removable
Media
Default Setup
• Save Current Settings as Default
• Restore Factory Settings as Default

System Hardware Interrupts
IRQ

System Function

IRQ

Apply Defaults and Exit - Applies the selected default settings and clears
any established passwords.

0

Timer Interrupt

8

Real-Time Clock

1

Keyboard

9

Unused

2

Interrupt Controller Cascade

10

Unused, available for PCI

Save Changes and Exit - Saves changes to system configuration or default
settings and exits Computer Setup.

3

Serial Port (COM B)

11

Unused, available for PCI

4

Serial Port (COM A)

12

Mouse

Device Configuration - Lists all installed BIOS-controlled storage devices.
The following options are available:
• Diskette Type(Legacy Diskettes only)-3.5” 1.44 MB and 5.25” 1.2 MB
• Drive Emulation
• Emulation Type - ATAPI Zip drive, hard disk, legacy diskette, CD-ROM
drive, and ATAPI LS-120 drive
• Multisector Transfers
• Translation Mode
• Translation Parameters
• SATA Default Values

5

Unused, available for PCI

13

Coprocessor

6

Diskette Drive

14

Primary ATA (IDE) Controller

7

Parallel Port (LPT 1)

15

Secondary ATA (IDE) Controller

Ignore Changes and Exit - Exits Computer setup without applying or saving
any changes.

Storage

dc7800 Illustrated Parts & Service Map, SFF Chassis

459786-001

System Function

page 3

Error Conditions and Messages

Failsafe Boot Block ROM
The computer comes with a reprogrammable flash system ROM (read only memory). To
upgrade the ROM, download the latest ROM BIOS image from the HP Web site (www.hp.com)
and follow the online GUI/instructions.

How It Is
Established

Feature

Purpose

Floppy drive controller

Prevents the transfer of data to or from the
floppy drive.

Setup Utilities

Device Boot Disabling

Prevents booting from and or all of these
devices: Internal or external USB, Internal
ODD, or Internal FDD

Setup Utilities

Security Option

Prevents use of computer until password is
entered. Can apply to both initial startup and
restart.

Setup Utilities

1. Remove any bootable media from the computer and turn off power.

BIOS Write Protect

Restricts ability to change ROM BIOS without approval.

Setup Utilities.

2. Insert a flash drive or CD containing the ROM BIOS in the root directory. The media must be
formatted using the FAT12, FAT16, or FAT32 file system.

USB Controller

Allows you to disable or enable all USB
devices.

Setup Utilities

Your system ROM includes a Failsafe Boot Block that is protected during the flash process and
allows the computer to be restarted in the unlikely event of an unsuccessful ROM flash.
If the system detects an invalid system ROM during the boot sequence, the Failsafe Boot Block
attempts to locate a valid BIOS image on removable media. To recover from the Boot Block
recovery mode complete the following steps:

Boot Block Recovery

3. Turn on power to the system.
4. The system will automatically flash the ROM. After a successful flash, the system will either
automatically restart or prompt the user to unplug the unit, wait 5 seconds, reattach the power
cord, and then press the power button.

Diagnostic LEDs

NOTE: BitLocker prevents Windows Vista from booting when a CD containing the BIOS image
file is in an optical drive. If BitLocker is enabled, remove this CD before attempting to boot to
Windows Vista.

LED

Color

LED Activity

State/Message

Power

Green

On

Computer on

Power

Green

1 blink every 2 seconds

Normal Suspend Mode

Power

Red

1 blink every second followed
by a 2 second pause

CPU thermal shutdown

Power

Red

3 blinks, 1 blink every second
followed by a 2 second pause

Processor not installed

Power

Red

4 blinks, 1 blink every second
followed by a 2 second pause

Power failure (power supply overload)

Power

Red

5 blinks, 1 blink every second
followed by a 2 second pause

Pre-video memory error

4. Before exiting, click File > Save Changes and Exit.

Power

Red

6 blinks, 1 blink every second
followed by a 2 second pause

Pre-video graphics error

Changing a password:

Power

Red

7 blinks, 1 blink every second
followed by a 2 second pause

System board failure (ROM

To change the Setup password, go to step 2.
To change the Power-on password, go to step 3.

Power

Red

8 blinks, 1 blink every second
followed by a 2 second pause

Invalid ROM based on Checksum

2. To change the Setup password, as soon as the computer is turned on, press F10 when the
monitor light turns green to enter Computer Setup. Press Enter to bypass the title screen, if
necessary.

Power

Red

9 blinks, 1 blink every second
followed by a 2 second pause

System powers on but is unable to boot

Power

Red

10 blinks, 1 blink every second
followed by a 2 second pause

Bad option card

Power

Red

11 blinks, 1 blink every second
followed by a 2 second pause

The current processor does not support
a feature previously enabled on this
system.

none

none

System does not power on and
LEDs are not flashing

System unable to power on

Password Security
Establishing a Setup password:
1. Turn on or restart the computer. If you are in Windows, click Start > Shut Down > Restart.
2. As soon as the computer is turned on, press F10 when the monitor light turns green to enter
Computer Setup. Press Enter to bypass the title screen, if necessary. If you do not press F10
when prompted, a restart will be necessary.
3. Select Security > Setup Password and follow the instructions on the screen.

1. Turn on or restart the computer. If you are in Windows, click Start > Shut Down > Restart.

3. 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.
4. Press Enter.
The new password will take effect the next time the computer is restarted.

Common POST Error Messages

Deleting a password

Screen Message

Probable Cause

Recommended Action

1. Turn on or restart the computer. If you are in Windows, click Start > Shut Down > Restart.

101-Option ROM Error

1. System ROM checksum
error.

1. Verify ROM, reflash if required

2. Expansion board option
ROM checksum

3. Clear CMOS memory, reboot

To delete the Setup password, go to step 2.
To delete the Power-On password, go to step 3.
2. To change the Setup password, as soon as the computer is turned on, press F10 when the
monitor light turns green to enter Computer Setup. Press Enter to bypass the title screen, if
necessary.
3. When the key icon appears, type your current password followed by a slash (/) or alternate
delimiter character as shown. Example: currentpassword/

3. System board
103-System Board
Failure

DMA, timers

164-Memory Size Error
and
201-Memory Error

Incorrect memory configuration

NOTE: For more information about Setup Utilities refer to the Computer Setup Menu on the
previous page or in the Service Reference Guide.

Processor type and speed
Memory amount, mapping, and integrity
Hardware peripheral availability/settings
Hard drive type, space used/available
System identification, asset tracking

Insight Diagnostics may be found on the Documentation and Diagnostics CD that shipped with
the computer. The tool may also be downloaded from the hp Web site using the following procedure:

214-DIMM Configuration Warning

Populated DIMM configura- Rearrange the DIMMs so that
tion is not optimized
each channel has the same amount
of memory.

301-, 304-Keyboard error

Keyboard failure.

Check keyboard connection or
keys. Check connector for bent of
missing pins. Replace keyboard. If
304, possible system board problem.

501-Display Adapter
Failure

Graphics display controller.

1. Reseat graphics card.
2. Clear CMOS.
3. Check monitor connection.

1. Go to www.hp.com

4. Replace graphics card.

2. Click the Software & Download driver link.
3. Enter the product number (for example, dc7800) in the text box and press the Enter key.

1720-SMART Hard Drive
Detects Imminent Failure

Hard drive is about to fail.

4. Select the specific product.
5. Select the OS.
6. Click the Diagnostics link.
7. Select HP Insight Diagnostics Offline Edition.

1. Determine if hard drive is
giving correct error message.
Enter Computer Setup and run
the Drive Protection System
test under Storage > DPS Selftest.
2. Apply hard drive firmware
patch if applicable.

8. Select the proper language and click Download.

3. Back up contents and replace
hard drive.

NOTE: The download includes instructions on how to create a bootable CD.

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

dc7800 Illustrated Parts & Service Map, SFF Chassis

2. Check DIMMs for proper
seating, type, and HP
compatibility.

4. Replace system board.

Diagnostic functions are provided by the Setup Utility (in system ROM) and by Insight Diagnostics. Insight Diagnostics provides detailed system information including:

4. Replace the chassis access panel and reconnect the power cord.

1. Run Setup (F10).

3. Remove DIMMs singularly and
reboot to isolate faulty DIMM.

Diagnostic Functions

3. On the system board, press and hold the CMOS button for 5 seconds.

1. Clear CMOS memory.
3. Replace system board.

Security Features

2. Remove the chassis access panel.

4. Replace system board

2. Remove expansion boards.

4. Press Enter.

•
•
•
•
•

2. Remove suspected card, reboot

1796-SATA Cabling Error One or more SATA devices
are improperly attached. For
optimal performance, the
SATA 0 and SATA 1 connectors must be used before
SATA 2 and SATA 3.

Ensure SATA connectors are used
in ascending order. For one
device, use SATA 0. For two
devices, use SATA 0 and SATA 1.
For three devices, use SATA 0,
SATA1, and SATA 2.

1801-Microcode Patch
Error

1. Upgrade BIOS to proper
version.

Processor not supported by
ROM BIOS.

2. Change the processor.

459786-001

page 4



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