HP COMPAQ DC5750 User Manual

Illustrated Parts & Service Map

HP Compaq dc5750 Microtower
Business PC

© 2006 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.

Document Number 439134-002 2nd Edition November 2006.

Key Specifications

Processor Type: AMD Athlon 64 Dual Core, AMD Athlon 64, and

RAM Type: DDR PC2-5300 non-ECC

Maximum RAM Supported: 4 GB

Expansion Bus: PCI 2.3 (2), PCI-E x1 (1), PCI-E x16 (1)

Graphics Adapter Integrated controller. PCI-E support.

Hard drive interface: SATA 3.0 Gb/s

I/O Interfaces: Serial (1 std + 1 optional), parallel (1), USB 2.0 (8), RJ-

Spare Parts

AMD Sempron 64 with HyperTransport

45 (1), front and rear audio jacks (2 each), P/S2 (2), and
VGA (1)

Cables

1 SATA HDD cable, 18-in. lg (1 straight, 1 angle end) 393958-001

2 SATA HDD cable, 19.5-in. lg (2 straight ends) 391739-001

* Diskette drive cable 439216-001

3 Front I/O with USB, audio cables, power/LED

cable, switch and switch holder

432862-001

*Not shown

Keyboards (not illustrated)

-171

-181

-B41

-201

-221

-081

-CA1

-351

-051

-DE1

-121

-041

-151

-BB1

-211

-DD1

-B31

-061

-291

382925-xxx
396215-xxx
382926-xxx
382927-xxx
393670-xxx
396219-xxx
369217-xxx

[8]

Kazakh

Korean (Hangul)

LA Spanish

Netherlands

Norwegian

PRC

Portuguese

Romanian

Russian

Slovakian

Spanish

Swedish

Swiss

Tai wa ne se

Thai

Turk ish

U.S.

Ukrainian

U.K.

[4]

[8]

[1]

[1]

[1]

[7]

[3]

[1]

[1]

[2]

[2]

[1]

[1]

[1]

[1]

[9]

[1]

-DF1

[4]

-AD1

-161

-331

-091

-AA1

-131

-271

-251

-231

-071

-101

-111

-AB1

-281

-141

-001

-BD1

-031

PS/2, Basic
PS/2, Basic, 105 key
USB, Basic
USB, Basic, BG1650
USB SmartCard
USB, SmartCard, 105 key
USB, Basic, 105 key

[]

Arabic

[2]

Belgian

[1]

BHCSY

Brazilian Portuguese

[1]

Czech

[2]

Danish

[8]

Estonian

[1]

Finnish

[2]

French

French Arabic

French Canadian

[2]

German

[3]

Greek

[1]

Hebrew

Hungarian

[8]

Icelandic

International

[2]

Italian

[1]

Japanese

[1]

not for 382927-xxx, 396215-xxx, 396217-xxx, or 396219-xxx

[2]

not for 396215-xxx, 396217-xxx, or 396219-xxx

[3]

not for 382926-xxx, 382927-xxx, 396217-xxx, or 396219-xxx

[4]

not for 382927-xxx, 396217-xxx, or 396219-xxx

[5]

only for 396215-xxx and 296219-xxx

[6]

only for 396215-xxx, 396217-xxx, and 382925-xxx

[7]

only for 382925-xxx and 382926-xxx

[8]

only for 393670-xxx

[9]

only for 382925-xxx, 382926-xxx and 396217

[1]

[1]

[1]

[1]

[1]

System Unit

1 Chassis not spared

2 Front bezel assembly with 3.5-in. bezel blank (not

shown) and 5.25 in. bezel blank (item 5)

432864-001

3 Access panel 433124-001

4 Power supply, 300W 404795-001

5 5.25-in bezel blank 335937-005

* Not shown

dc5750 Illustrated Parts & Service Map, MT Chassis 439134-002 page 1

Standard and Optional Boards

Memory modules, non-ECC, DDR2

1 256 MB, PC2-5300, CL5

* 512 MB, PC2-5300, CL5

* 1 GB, PC2-5300, CL5

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

2 Standard board 432861-001

* Board for vPro applications without embedded secu-

rity (Russia only)

AMD Sempron64 processor with 800 MHz HyperTransport

* 3400+, 1.8 GHz, 256K cache, 1.6 GHz FSB 433506-001

* 3600+, 2.0 GHz, 256K cache, 1.6 GHz FSB 435919-001

AMD Athlon64 processor with 1.0 GHz HyperTransport,

* 3500+, 2.2 GHz, 512 KB cache, 2.0 GHz FSB 435911-001

* 3800+, 2.4 GHz, 512 KB cache, 2.0 GHz FSB 435912-001

AMD Athlon 64 Dual Core processor with 1.0 GHz HyperTransport

3800+, 2.0 GHz, 1.0 MB cache, 2.0 GHz FSB 435913-001

* 4200+, 2.2 GHz, 1.0 MB cache, 2.0 GHz FSB 435914-001

* 4600+, 2.4 GHz, 1.0 MB cache, 2.0 GHz FSB 435915-001

* 5000+, 2.6 GHz, 1.0 MB cache, 2.0 GHz FSB 435917-001

* 1 GB, PC2-5300, CL5

Other boards

* ATI Radeon X1300Pro, 256 MB, PCIe, with DVI-I

and S-Video output

* ATI Radeon X1300Pro, 256 MB, PCIe, with

DMS59 output and S-Video input

* ATI Radeon X1600XT, 256 MB, PCIe, with DVI-I

and S-Video output

* Standard 1394 PCI card with 2 external and 1

internal ports

* Broadcom 5751 Gigabit NIC, PCIe, FH 393626-001

* Agere International 56K Modem, FH 398661-001

* DVI-I to VGA graphics adapter 202997-005

* Not shown
LP = Low profile
FH = Full height

396519-001

396520-001

398038-001

434370-001

398038-001

413023-001

432947-001

419543-001

393308-001

Miscellaneous Parts

Miscellaneous screw kit, includes: 414180-001

* #6-32 x .250 hitop screw with serrations

(192308-001)(14 ea)

* (192308-002) (4 ea)

* (192308-003) (6 ea)

* (106902-001) (2 ea)

* (334248-001) (4 ea)

* (247481-001) (8 ea)

* (247348-001) (8 ea)

* (368224-002) (2 ea)

* (101517-067) (12 ea)

1 Chassis fan 432863-001

2 Heatsink with alcohol pad, factory-applied thermal

grease, and heatsink shroud

3 Fan duct 433123-001

4 Rear I/O panel 435529-001

*Mouse, PS2, scroll type 390937-001

*Mouse, USB, scroll type 390939-001

* Mouse, PS2, optical 417966-001

* Mouse, USB, optical 390938-001

* Battery, real-time clock 153099-001

5 Internal speaker 430129-001

* Second serial port, FH 392414-001

*Not shown
LP = Low profile
FH = Full height

432865-001

Mass Storage Devices (not illustrated)

Diskette drive with bezel 431452-001

Media card reader, 3.5-in 407187-001

Media card reader, 5.25-in 412838-001

52X SATA CD-ROM drive (APJ only) 419469-001

16X SATA DVD-ROM drive 419496-001

48X SATA CD-ROM drive 419635-001

16X SATA DVDRW L drive with LightScribe 419498-001

16x/48x Combo drive 419497-001

80-GB\7200 RPM SATA hard drive, 8MB cache 432392-001

160-GB\7200 RPM SATA hard drive, 8MB cache 432393-001

250-GB\7200 RPM SATA hard drive, 8MB cache 432394-001

dc5750 Illustrated Parts & Service Map, MT Chassis 439134-002 page 2

System Board

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

CR1 5VAUX LED P60 SATA0

E20 Ambient Temperature P61 SATA1

E49 Password P62 SATA2

J20 PCI slot 1 P63 SATA3

J21 PCI slot 2 P70 CPU fan (fansink)

J31 PCIE X1 P8 Primary chassis fan (front)

J41 PCIE X16 P9 Chassis fan (rear)

P1 Main power P150 Card reader

P10 Diskette drive SW50 Clear CMOS

P11 Aux audio XBT1 Real-time-clock battery

P23 Front audio XMM1 DIMM 1

P24 Front USB XMM2 DIMM 2

P3 CPU power XMM3 DIMM 3

P5 Power button/LED XMM4 DIMM 4

P52 Flying serial port XU1 Processor

P6 Internal speaker

System Setup and Boot

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.

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)

About - Displays copyright notice.

Set Time and Date - Allows you to set system time and date.

Flash System ROM (some models) - 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 Computer 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

Computer Setup Menu (Continued)

devices. The following options are available:

• Diskette Type (Legacy Diskette only) - 3.5” 1.44 MB and 5.25” 1.2
MB

• Drive Emulation of ATAPI Zip drive, hard disk, and ATAPI LS-120
drive

• Multisector Transfers

• Translation Mode

• Translation Parameters

• Default Values IDE/SATA

Storage Options -

• Removable Media Boot

• Legacy Diskette Write

• BIOS DMA Data Transfers

• SATA Emulation - SATA 0 and 2, SATA 1 and 3, SATA 4 (some
models) SATA 5 (some models)

DPS Self-Test - Allows you to execute self-tests on ATA hard drives.

• Memory size/speed/ no. channels

• Integrated MAC Address

• System BIOS

• Chassis serial number

• Asset tracking number

Heading Option / Description

Storage
(Continued)

Security Smart Card Options (some models) - Allows you to enable/disable the

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

Advanced Fea­tures

System Hardware Interrupts

IRQ System Function IRQ System Function

0 Timer Interrupt 8 Real-Time Clock

1 Keyboard 9 Unused

2 Interrupt Controller Cascade 10 Unused, available for PCI

3 Serial Port (COM B) 11 Unused, available for PCI

4 Serial Port (COM A) 12 Mouse

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

Boot Order - Allows you to specify boot order.

Smart Card.

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.

Embedded Security (some models) - Allows you to enable/disable
Embedded Security and power-on authentication support, reset device to
factory settings, and reset authentication credentials.

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.

OS Security - Allows you to enable/disable Data Execution Prevention
and OS management of mbedded Security Device.

Setup Security Level - Allows for limited changes to setup options with­out password.

Management, ACPI S3 Hard Disk Reset, and ACPI S3 PS2 Mouse
Wakeup. Also Allows you to improve Idle Power Savings and to permit
system to awaken when USB device is inserted.

Thermal - Allows you to control minimum permitted fan idle speed.

Power-On Options - Allows you to set:

• POST mode - QuickBoot, FullBoot, or FullBoot every 1-30 days.

• POST messages - Enable/disable

• F9 prompt - Enable/disable

• F10 prompt - Enable/disable

• F12 prompt - 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

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.

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

• Unique Sleep State Blink Patterns

• Integrated video - enable/disable

• Integrate graphics memory size

• Internal speakers (some models) - enable/disable

• Monitor tracking - enable/disable

• NIC PXE Option ROM Download - enable/disable

dc5750 Illustrated Parts & Service Map, MT Chassis 439134-002 page 3

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.

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

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

2. Insert a flash drive or CD containing the ROM BIOS.

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.

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.

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

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 > Power-On Password and follow the instructions on the screen.

Before exiting, click File > Save Changes and Exit.

Changing a password:

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

To change the Setup password, go to step 2.
To change 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, a slash (/) or alternate de-limiter
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 actual 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 password

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

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/

4. Press Enter.

Security Features

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

Diagnostic Functions

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

• 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:

1. Go to www.hp.com

2. Click the Software and Download driver link.

3. Enter the product number (for example, dc7700) 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. The SoftPaq
number is SP33665 or later.

Error Messages

Diagnostic LEDs

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

Power Red 3 blinks, 1 blink every second

Power Red 4 blinks, 1 blink every second

Power Red 5 blinks, 1 blink every second

Power Red 6 blinks, 1 blink every second

Power Red 7 blinks, 1 blink every second

Power Red 8 blinks, 1 blink every second

Power Red 9 blinks, 1 blink every second

Power Red 10 blinks, 1 blink every second

none none System does not power on and

Common POST Error Messages

Screen
Message Beeps Probable Cause Recommended Action

101-Option
ROM Error

103-System
Board
Failure

164­Memory Size
Error
and
201
Memory Error

214-DIMM
Configuration
War ni ng

301-, 304-Key­board error

501-Display
Adapter Failure

1720-SMART
Hard Drive
Detects Immi­nent Failure

1796-SATA
Cabling Error

1801-Micro­code Patch
Error

NOTES: L = long, S = short

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

1L, 1S 1. System ROM checksum

none DMA, timers 1. Clear CMOS memory.

2S Incorrect memory configu-

none Populated DIMM configura-

none Keyboard failure. Check keyboard connection or

1L, 2S Graphics controller. 1. Reseat graphics card.

none Hard drive is about to fail. Run drive protection system test if

none One or more SATA devices

none Processor not supported by

error.

2. Expansion card.

3. CMOS corruption.

4. System board.

ration

tion is not optimized

are improperly attached.

ROM B IOS.

Clearing CMOS

1. Shut down the system and disconnect the power cord from the power outlet.

2. Remove the chassis access panel.

3. Unplug the diskette drive cable from the system board if installed.

4. On the system board, slide the CMOS switch SW50 and hold it for 5 seconds.

5. Replace the diskette drive cable if required.

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

7. Turn on the computer and allow it to start.

CPU thermal shutdown

Processor not installed

Power failure (power supply overload)

Pre-video memory error

Pre-video graphics error

System board failure (ROM

Invalid ROM based on Checksum

System powers on but is unable to boot

Bad option card

System unable to power on

1. Verify ROM, reflash if required

2. Remove suspected card, reboot

3. Clean CMOS memory, reboot

4. Replace system board

2. Remove expansion board.

3. Replace system board.

1. Run Setup (F10).

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

3. R emove DIMMs singularly and
reboot to isolate faulty DIMM.

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

keys. Replace keyboard. If 304,
possible system board problem.

2. Check monitor connection.

3. Replace graphics card.

available. Check for firmware
patch for erroneous error message.

Ensure SATA0 and SATA1 are
used before any other SATA con­nectors.

1. Upgrade BIOS to proper
version.

2. Change the processor.

dc5750 Illustrated Parts & Service Map, MT Chassis 439134-002 page 4