HP Compaq dc5800 Service and Maintain

Illustrated Parts & Service Map

HP Compaq dc5800 Microtower Business PC

© 2008 Hewlett-Packard Development Company, L.P. The information con-

tained herein is subject to change without notice. HP shall not be liable for
technical or editorial errors or omissions contained herein. Intel, Celeron,
Core 2 Duo, Core Quad, 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 481403-001. 1st Edition February 2008.

Key Specifications

Processor Type Intel Core 2 Duo, Intel Core 2 Quad, Pentium, Celeron

RAM Type DDR2-SDRAM DIMMs, PC2-6400 (800 MHz) non-ECC

Maximum RAM Supported 8 GB

Expansion Slots • 1 PCIe-x16

Graphics Adapter Intel GMA 3100 integrated

Drive Support • (2) 5.25-inch external bays

I/O Interfaces Serial (2, 1 optional), optional parallel, USB 2.0 (8), RJ-45,

•2 PCIe-x1

•1 PCI

• (1) 3.5-inch external bay

• (2) 3.5-inch internal hard drive bays (SATA 3.0 Gb/s)

• (1) diskette drive or

audio in (2), audio out (2), PS/2 ports (2), VGA, DVI-D

(1) media card reader

Spare Parts

System Unit

1 Access panel 461859-001

2 Front bezel 460883-001

3 Power supply, 300W 460879-001

3 Power supply, 300W, 80% efficient 460880-001

* 5.25-inch bezel blank 335937-001

* Chassis not spared

* Not shown

Cables

1 Front I/O with USB 460885-001

2 Power switch cable assembly 460886-001

3 SATA HDD cable, 18 inch, 1 straight end, 1 angled end 393958-001

4 SATA cable, 19 inch, 2 straight ends 391739-001

* SATA cable, 17 inch, 2 straight ends 453317-001

* DMS-59 to dual VGA cable 463023-001

*Not shown

Keyboards (not illustrated)

PS/2, Basic
USB, Basic
USB SmartCard

Arabic -171

Belgian -181

BHCSY -B41 LA Spanish -161

Brazilian Portuguese -201 Norwegian -091

Czech -221 Polish

Danish -081 Portuguese -131

Dutch -331 Romanian -271

Estonian -CA1

Finnish -351 S. Chinese

French -051 Slovakian -231

French Arabic -DE1

French Canadian -121 Swedish -101

German -041 Swiss -111

Greek -151 Taiwanese -AB1

Hebrew -BB1 Thai -281

Hungarian -211 Turkish “F” -541

Icelandic -DD1 Turkish “Q” -141

International -B31

Italian -061 U.K. -031

Japanese -291

*For 435385, Korean = -KD1

435302-xxx
435382-xxx
435385-xxx

Kazakh -DF1

Korean (Hangul)

Russian -251

Spanish -071

U.S. -001

-AD1*

-241

-AA1

dc5800 Illustrated Parts & Service Map, MT Chassis 481403-001 page 1

Miscellaneous Parts

1 Second serial port, LP 392414-001

2 Chassis fan 460884-001

3 Fan duct 460882-001

4 Heatsink with alcohol pad and factory-applied thermal grease 460897-001

* Fan duct 463721-001

* System board tray 460881-001

* Printer port, LP 465339-001

* Mouse, PS2, optical 417966-001

* Mouse, optical 390938-001

* Mouse, USB laser 459821-001

* Battery, real-time clock 153099-001

* Internal speaker 392413-001

*Not shown
LP = Low profile

System Board

Standard and Optional Boards (not illustrated)

Memory modules:

512 MB, PC2-6400, CL6

1 GB, PC2-6400, CL6

2 GB, PC2-6400, CL6

Other boards:

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

Belkin 802.11a/g WLAN adapter for use in the rest of the world 391866-001

ATI HD X2400, PCIEx16, DMS-59 and TV outputs, 256MB graphics adapter 462477-001

nVidia Quadro NVS 290, 256MB, PCI-E graphics adapter

Broadcom NetXtreme GbE PCI-E NIC, FH 430654-001

56K modem, Agere 2006 PCI Hi-Speed, FH 398661-001

nVidia GeForce 8400 GS 256-MB video card with DMS-59 and TV
(S-Video) outputs, FH

nVidia GeForce 8400 GS 256-MB video card with DMS-59 and TV
(S-Video) outputs, LP

Nvidia Quadro NVS290 256-MB PCIe graphics card 460815-001

DVI, SDVO graphics card, FH 398333-001

HP FireWire IEEE 1394 PCI card, 2 external, 1 internal port, FH 441448-001

Intel Pro 1000 PT Gigabit PCIe NIC, FH 398754-001

ReadyBoost module, 1 GB 462851-001

System boards with thermal grease, alcohol pad, and CPU socket cover:

System board 461536-001

System board, for Russia only 462850-001

Intel Celeron Processors with alcohol pad and thermal grease:

430, 512-KB cache, 1.80 GHz 449165-001

420, 512-KB cache, 1.60 GHz 449164-001

Intel Celeron Dual-Core Processors with alcohol pad and thermal grease:

E1200, 512-KB cache, 1.60 GHz 468589-001

Intel Core 2 Quad Processors with alcohol pad and thermal grease:

Q6600, 8-MB cache, 2.40 GHz 452451-001

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

E8400, 6-MB cache, 3.00 GHz 466169-001

E8200, 6-MB cache, 2.67 GHz 466171-001

E6750, 4-MB cache, 2.66 GHz 450791-001

E6550, 4-MB cache, 2.33 GHz 450694-001

E4600, 2-MB cache, 2.40 GHz 462569-001

E4500, 2-MB cache, 2.20 GHz 449452-001

Intel Pentium Dual-Core 2 Processors with alcohol pad and thermal grease:

E2200, 1-MB cache, 2.20-GHz 465216-01

E2180, 1-MB cache, 2.00-GHz 457656-01

418952-001

418951-001

457624-001

391866-002

456137-001

461450-001

445743-001

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

J9 RJ-45 over dual USB P5 Power button/LED

J10 Quad stack USB P52 Second serial port

J20 PCI slot 1 P53 Serial port connector

J31 PCIe X1, slot 1 P6 Internal speaker

J32 PCIe X1, slot 2 P60 SATA0

J41 PCIe X16 P61 SATA1

J66 Keyboard P62 SATA4

J67 Mouse P63 SATA5

J69 VGA connector P8 CPU fan

J78 Double stack audio connector P9 System fan

P1 Main power SW50 Clear CMOS

P10 Diskette drive XBT1 Real-time-clock battery

P126 Parallel connector XMM1 DIMM 1

P150 Media reader XMM2 DIMM 2

P23 Front audio XMM3 DIMM 3

P24 Front USB XMM4 DIMM 4

P25 ReadyBoost XU1 Processor

P3 CPU power

Mass Storage Devices (not illustrated)

Diskette drive with bezel 431452-001

Media card reader, 3.5-inch 407187-001

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

500 GB SATA hard drive 457909-001

250 GB, 7200-RPM SATA hard drive, 8-MB cache 449980-001

250 GB, 7200-RPM SATA hard drive, 8-MB cache 440747-001

160 GB, 7200-RPM SATA hard drive, 8-MB cache 449979-001

160 GB, 7200-RPM SATA hard drive, 8-MB cache 440499-001

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, 7200-RPM SATA hard drive, 8-MB cache 440754-001

80 GB, 10000-RPM SATA hard drive, 16-MB cache 439994-001

dc5800 Illustrated Parts & Service Map, MT Chassis 481403-001 page 2

Setup Utility

Basic system information is maintained in the Setup Utility held in the system ROM, accessed
by pressing the F10 key when prompted (on screen) during the boot sequence.

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)

• Memory size/speed/channels

• Integrated MAC Address

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

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

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

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

Storage Device Configuration - Lists all installed BIOS-controlled storage devices. The

Security Setup Password - Allows you to set and enable the setup (Administrator) pass-

Power OS Power Management - Allows you to enable/disable Runtime Power Manage-

Advanced Power-On Options - Allows you to set:

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 (ATA disks only)

• Translation Mode (ATA disks only)

• Translation Parameters (ATA disks only)

• SATA Default Values

Storage Options

• Removable Media Boot

• Legacy Diskette Write

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

word.

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 - 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

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

ment, 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.

• 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

• F11 prompt - Enable/disable

• F12 prompt - Enable/disable

• Factory Recovery Boot Support - Enable/disable

• Option ROM prompt - 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 Maximum Value to 3

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

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

Onboard Devices - Allows you to set resources or disable onbrd 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.

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

• Integrated Video - enable/disable

• Multi-Processor - enable/disable

• Internal speaker (some models) - enable/disable

• Monitor Tracking - enable/disable

• NIC PXE Option ROM Download - enable/disable

• System BIOS

• Chassis serial number

• Asset tracking number

• ME firmware version

• ME management mode

Diagnostic LEDs

Color Beeps LED Activity State/Message

Green none On Computer on

Green none 1 blink every 2 seconds Suspend to RAM Mode

Red 2 2 blinks every second followed

Red 3 3 blinks, 1 blink every second

Red 4 4 blinks, 1 blink every second

Red 5 5 blinks, 1 blink every second

Red 6 6 blinks, 1 blink every second

Red 7 7 blinks, 1 blink every second

Red 8 8 blinks, 1 blink every second

Red 9 9 blinks, 1 blink every second

Red 10 10 blinks, 1 blink every second

none none System does not power on and

by a 2 second pause

followed by a 2 second pause

followed by a 2 second pause

followed by a 2 second pause

followed by a 2 second pause

followed by a 2 second pause

followed by a 2 second pause

followed by a 2 second pause

followed by a 2 second pause

LEDs are not flashing

• Processor thermal protection
activated.

• Fan blocked or not turning.

• Heatsink not properly attached.

Processor not installed (not indicator
of bad processor).

Power failure (power supply
overload).

Pre-video memory error.

Pre-video graphics error.

System board failure (ROM detected
failure prior to video).

Invalid ROM based on bad checksum.

System powers on but is unable to
boot.

Bad option card.

System unable to power on.

Boot Block Emergency Recovery Mode

failure. For example, if a power failure were to occur during a BIOS upgrade, the ROM flash
would be incomplete. This would render the system BIOS unusable. The Boot Block is a flash­protected section of the ROM that contains code that checks for a valid system BIOS image
when the system is turned on.

• If the system BIOS image is valid, the system starts normally.

• If the system BIOS image is not valid, a failsafe Boot Block BIOS provides enough support
to search removable media for BIOS image files. If an appropriate BIOS image file is found,
it is automatically flashed into the ROM.

When an invalid system BIOS image is detected, the system power LED will blink red 8 times,
one blink every second. Simultaneously, the speaker will beep 8 times. If the portion of the
system ROM containing the video option ROM image is not corrupt, Boot Block Emergency
Recovery Mode will be displayed on the screen.

To recover the system after it enters Boot Block Emergency Recovery Mode, complete the
following steps:

1. Turn off the computer.

2. Insert a flash drive or CD containing the BIOS image in the root directory. The media must be

formatted using the FAT12, FAT16, or FAT32 file system.

3. Turn on the computer. If no appropriate BIOS image is found, you will be prompted to insert

media containing a BIOS image file. 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.

4. Remove the removable media used to upgrade the BIOS.

5. Turn the power on to restart the computer.

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.

Password Security

Establishing a Setup password using computer setup

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.

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

Changing a Power-on or Setup password

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

2. If you want 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. If you want to change the Power-On password, 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.

Deleting a Power-on or Setup password

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

2. To delete 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. To delete the Power-on password, when the key icon appears, type the current password

followed by a slash (/) or alternate delimiter character as shown: currentpassword/

4. Press Enter.

dc5800 Illustrated Parts & Service Map, MT Chassis 481403-001 page 3

HP Insight Diagnostics

The HP Insight Diagnostics utility allows you to view information about the hardware configu­ration of the computer and perform hardware diagnostic tests on the subsystems of the com­puter. The utility simplifies the process of effectively identifying, diagnosing, and isolating
hardware issues.
The Survey tab is displayed when you invoke HP Insight Diagnostics. This tab shows the cur­rent configuration of the computer. From the Survey tab, there is access to several categories of
information about the computer. Other tabs provide additional information, including diagnostic
test options and test results. The information in each screen of the utility can be saved as an html
file and stored on a diskette or USB HP flash drive.
Use HP Insight Diagnostics to determine if all the devices installed on the computer are recog­nized by the system and functioning properly. Running tests is optional but recommended after
installing or connecting a new device.
You should run tests, save the test results, and print them so that you have printed reports avail­able before placing a call to the Customer Support Center.
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:

1. Go to www.hp.com

2. Click the Software & Download driver link.

3. Enter the product number (for example, dc5800) in the text box and press the Enter key.

4. Select the specific product.

5. Select the OS.

6. Click the Diagnostics link.

7. Select HP Insight Diagnostics Offline Edition.

8. Select the proper language and click Download.

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.

2. Remove the access panel.

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

4. Replace the access panel, external devices, and reconnect the power cord.

5. Turn on the computer.

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.

Common POST Error Messages

Screen Message Description Recommended Action

101-Option ROM Error 1. System ROM checksum.

2. Expansion board option
ROM checksum.

103-System Board
Failure

162-System Options
Not Set

163-Time & Date Not
Set

163-Time & Date Not
Set

164-Memory Size
Error

201-Memory Error RAM failure. 1. Run Setup (F10).

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

214-DIMM Configura­tion Warning

DMA, timers 1. Clear CMOS.

Configuration incorrect.
RTC battery may need to be
replaced.

Invalid time or date in con­figuration memory.
RTC (real-time clock) bat­tery may need to be
replaced.

CMOS jumper may not be
properly installed.

Memory amount has
changed since the last
boot (memory added or
removed).

Incorrect memory configu­ration.

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

Populated DIMM configura­tion is not optimized.

1. Verify ROM, reflash if required

2. Remove suspected card, reboot

3. If expansion board recently added,
remove to see if problem remains.

4. Clear CMOS.

5. If message disappears, may be
problem with expansion card.

6. Replace system board.

2. Remove expansion boards.

3. Replace system board.

Run Computer Setup and check con­figuration in Advanced > Onboard
Devices.
Reset date and time in Control Panel.
If problem persists, replace RTC bat­tery.

Reset the date and time under Con­trol
Panel (Computer Setup can also be
used). If the problem persists,
replace the RTC
battery.

Check for proper placement of the
CMOS
jumper if applicable.

Press the F1 key to save the memory
changes.

1. Run Setup (F10).

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

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

4. Verify proper memory module
type.

2. Ensure memory modules are
correctly installed.

3. Verify proper memory module
type.

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

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

1. Verify proper memory module
type.

2. Try another memory socket.

3. Replace DIMM with a module
conforming to the SPD standard.

Rearrange the DIMMs so that each
channel has the same amount of
memory.

-or-

219-ECC Memory
Module Detected ECC
Modules not supported
on this Platform

301-, 304-Keyboard
error

501-Display Adapter
Failure

510-Flash Screen
Image Corrupted

511-CPU, CPUA, or
CPUB Fan not
Detected

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

514-CPU or Chassis
Fan not Detected

912-Computer Cover
Has Been Removed
Since Last System
Startup

1151-Serial Port A
Address Conflict
Detected
1152-Serial Port B
Address Conflict
Detected
1155-Serial Port
Address Conflict
Detected

1720-SMART Hard
Drive Detects Immi­nent Failure

1796-SATA Cabling
Error

1797-SATA Drivelock
is not supported in
RAID mode.

1801-Microcode Patch
Error

2200-PMM Allocation
Error during MEBx
Download

Invalid Electronic
Serial Number

Network Server Mode
Active and No Key­board Attached

Parity Check 2 Parity RAM failure.

System will not boot
without fan

Recently added memory
module(s) support
ECC memory error correc­tion.

Keyboard failure. Check keyboard connection or keys.

Graphics display controller. 1. Reseat graphics card.

Flash Screen image has
errors.

CPU fan is not connected or
may have malfunctioned.

Chassis, rear chassis, or
front chassis fan is not con­nected or may have mal­functioned.

CPU or chassis fan is not
connected or may have mal­functioned.

Computer cover was
removed since last system
startup.

• Both external and internal
serial ports are assigned to
COM1.

• Both external and internal
serial ports are assigned to
COM2.

• Both external and internal
serial ports are assigned to
same IRQ.

Hard drive is about to fail.
(Some hard drives have a
hard drive firmware patch
that will fix an erroneous
error message.)

One or more SATA devices
are improperly attached. For
optimal performance, the
SATA 0 and SATA 1 con­nectors must be used before
SATA 4 and SATA 5.

Drivelock is enabled on one
or more SATA hard drives,
and they cannot be accessed
while the system is config­ured for RAID mode.

Processor not supported by
ROM B IOS.

Memory error during POST
execution of the Manage­ment Engine (ME) BIOS
Extensions option ROM

Electronic serial number is
missing.

Keyboard failure while Net­work Server Mode enabled.

Third-party graphics card
may be causing a problem.

CPU fan not installed or dis­connected.

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

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

2. Clear CMOS.

3. Check monitor connection.

4. Replace graphics card.

Reflash the system ROM with the
latest BIOS image.

1. Reseat CPU fan.

2. Reseat fan cable.

3. Replace CPU fan.

1. Reseat chassis, rear chassis, or
front chassis fan.

2. Reseat fan cable.

3. Replace chassis, rear chassis, or
front chassis fan.

1. Reseat CPU of chassis fan.

2. Reseat fan cable.

3. Replace CPU or chassis fan.

No action required.

1. Remove any serial port expansion
cards.

2. Clear CMOS.

3. Reconfigure card resources and/or
run Computer Setup or Windows
utilities.

1. Determine if hard drive is giving
correct error message. Enter
Computer Setup and run the Drive
Protection System test under
Storage > DPS Self-test.

2. Apply hard drive firmware patch
if applicable.

3. Back up contents and replace hard
drive.

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 4.

Either remove the Drivelocked
SATA device or disable the Drive­lock feature. To disable the Drive­lock feature, enter Computer Setup,
change Storage > Storage Options
> SATA Emulation to IDE, and
select File > Save Changes and
Exit. Re-enter Computer Setup and
select Security > Drivelock. For
each listed Drivelock-capable SATA
device, ensure Drivelock is Disabled.
Lastly, change Storage > Storage
Options > SATA Emulation back to
RAID and select File > Save
Changes and Exit.

1. Upgrade BIOS to proper version.

2. Change the processor.

1. Reboot the computer.

2. Unp lug the power cord, re-seat the
memory modules, and reboot the
computer.

3. If the memory configuration was
recently changed, unplug the
computer, restore the original
memory configuration, and reboot
the computer.

4. If the error persists, replace the
system board.

Enter the correct serial number in
Computer Setup.

1. Reconnect keyboard with
computer turned off.

2. Check connector for bent or
missing pins.

3. Ensure that none of the keys are
depressed.

4. Replace keyboard.

Run Computer Setup and Diagnostic
utilities. Remove third-party graph­ics card to see if problem goes away.

1. Remove computer cover, press
power button, see if processor fan
spins. If processor fan not
spinning, make sure fan's cable is
plugged onto system board
header. Ensure heatsink is
properly seated and installed.

2. If fan is plugged in and heatsink is
properly seated but fan does not
spin, then replace heatsink
assembly.

dc5800 Illustrated Parts & Service Map, MT Chassis 481403-001 page 4