2002, 2005 Hewlett-Packard Development Company, L.P
Compaq Evo D310 Microtower
Illustrated Parts Map Compaq Evo Family of Personal Computers Microtower Models
Compaq, the Compaq logo, Evo, HP and the HP logo are trademarks of Hewlett-Packard Development Company, L.P. Intel, Celeron, and Pentium are trademarks of Intel Corporation in the United States and other countries. All other product names mentioned herein may be trademarks of their respective companies.
HP shall not be liable for technical or editorial errors or omissions contained herein. The information in this document is provided as is without warranty of any kind and is subject to change without notice. The warranties for HP products are set forth in the express limited warranty statements accompanying such products. Nothing herein should be construed as constituting an additional warranty.
Standard and Optional Boards
December 2005 June 2002 Document Part Number 292400-002
System board for Intel processor, with thermal grease

283983-001

Memory Modules 2 * 128 MB RAM, DDR 256 MB RAM, DDR 512 MB RAM, DDR 285648-001 285649-001 285650-001
Miscellaneous Boards 3 * * Front audio/USB I/O board Lucent PCI Modem 3COM NIC 284247-001 239411-001 253951-001
Intel Celeron Processors with thermal grease 4 * * 1.7 GHz 1.8 GHz 2.0 GHz 288691-001 288692-001 309578-001
Intel Pentium P4 Processors with thermal grease 4 * * * * 2.26 GHz\512K cache 2.4 GHz\512K cache 2.0 GHz\512K cache 1.9 GHz\256K cache 1.8 GHz\256K cache 1.7 GHz\256K cache Graphics Controllers * * * nVIDIA NV11, 64 MB memory, with ATX bracket nVIDIA NV17, 64 MB memory, TV DVI ADD graphics 279777-001 267526-001 279778-001 288688-001 288689-001 273051-001 255436-001 255435-001 252919-001

Other Cards * Not shown

Cables * * System Unit Access panel Chassis Power supply, PFC, worldwide Front bezel assembly includes plain front bezel, 5 1/4 bezel blank, and bezel insert for EMEA and Blue Angel use only Front bezel assembly includes silver front bezel, 5 1/4 bezel blank, and bezel insert supporting 2 USB and 2 audio ports not spared not spared 277979-001 299170-001 * * Front panel audio cable Front panel USB cable Audio cable for CD Diskette drive cable Hard drive/CD-ROM cable, 10, dual device Hard drive/CD-ROM cable, 14, dual device 255440-001 289574-001 149806-001 257309-001 257047-001 257048-001

*Not shown

299171-001 Keyboards (not illustrated) Easy Access Keyboard, PS2 Connector Arabic Belgian Danish Finnish French Italian International Latin American Spanish Norwegian -171 -181 -081 -351 -051 -061 -B31 -161 -091 271122-xxx Miscellaneous Parts Portuguese Spanish Swedish Swiss Taiwanese Thai United Kingdom U.S. U.S. U.S. -131 -071 -101 -111 -AB1 -281 -031 -001 -002 -* 249408-001 260671-001 236921-001 286692-001 286693-001 250185-001 232320-001 281749-001 286711-001 278647-001 250109-001 278644-001 *Not shown 3 * Front bezel assembly includes plain front bezel, 5 1/4 bezel blank, and bezel insert 2 for EMEA and Blue Angel use only Front bezel assembly includes silver front bezel, 5 1/4 bezel blank, and bezel insert 3 supporting 2 USB and 2 audio ports Bezel insert supporting 2 USB and 2 audio ports Power switch holder Heatsink assembly Type 1, includes: 299170-001

* Not shown

299171-001
292209-001 287077-001 289576-001
Fan assembly with mounting base and attaching screws Heatsink Heatsink assembly Type 2, includes: Heatsink with fan assembly and retaining clips Heatsink mounting base and attaching screws Mouse, 2-button with ratchet wheel DiskOnKey, 8 MB 237241-001 249911-001 257051-001 300871-001
Peoples Republic of China -AA1 Mass Storage Devices GB\5400 RPM Hard drive 20 GB\7200 RPM Hard drive * * * * 2 * * * * GB\5400 RPM Hard drive 40 GB\7200 RPM Hard drive 60 GB\5400 RPM Hard drive 80 GB\7200 RPM Quiet hard drive 48X CD-ROM drive 16/10/40/12X CD ROM drive 40/10/40 CDRW drive 16X DVD drive DVD R/RW Diskette drive
Miscellaneous plastics kit, includes: * * * * * Bezel blank (166775-002) Power switch spring (not this product) LED holder (not this product) Cable clip (not this product) 3.5 to 5.25 Drive bay adapter

313224-001

Computer LEDs LED Power Power Power Power Power Power Power Power Power Hard Drive Color Green Green Green None None Red Red Red Red Green LED Activity On 1 blink every 2 second 1 blink every 2 seconds Off Off State/Message (S0) Computer on (S1) Normal Suspend Mode (S3) Suspend to RAM (S4) Suspend to Disk (if applicable) (S5) Computer off
2 blinks 1 second apart, followed CPU thermal shutdown by 2-second pause - Repeat On 1 blink every 1 second 1 blink every 2 seconds Blinking CPU not installed ROM error Power supply crow bar Hard drive activity

Keyboard LEDs LED System Board Connectors and Jumpers (position of some untitled components may vary in location) CMOS CR1 CR2 CR4 E49 J20 J21 J22 J30 J40 P1 P3 P5 P6 P7 P8 P10 Clear CMOS 5V Aux (ON)/PSON (OFF) Power button (OK) 3.3V_Aux Password PCI Expansion slot 1 PCI Expansion slot 2 PCI Expansion slot 3 PCI extension AGP slot Power, main Power, processor (VCCP12V) Power switch/LED Speaker CD audio Chassis fan Diskette P11 P14 P16 P20 P21 P24 P27 P29 P54 P70 P124 P125 XBT2 XMM1 XMM2 XU1 Aux audio Boot block Intrusion Primary ATA Secondary ATA Front USB MultiBay SCSI LED Com port B header CPU fan Hood lock Hood sensor Battery DIMM 1 DIMM2 Processor socket Type 1 Heatsink Num Lock Caps Lock Scroll Lock Num, Caps, Scroll Lock Num, Caps, Scroll Lock Num Lock Caps Lock Num, Caps, Scroll Lock Color Green Green Green Green Green Green Green Green LED Activity Flashing (Beeps - 1S, 2L) Flashing (Beeps - 1L, 2S) Flashing (Beeps - 2L, 1S) Flash On-Off 2 times (Beeps 1L, 3S) On (Rising Tone) On On Blink On in sequence, one at a time - N, C, SL State/Message Memory error No video System board failure, prior to video Invalid system ROM detected. ROM forces reflash. ROM reflashed successfully ROMPaq diskette not present, is bad, or drive not ready.* Enter password. Keyboard locked in network mode
* Insert valid ROMPaq diskette in drive A. Turn power switch off, then on to reflash ROM. If ROM flash is successful, all three keyboard LEDs will light up, and you will hear a rising tone series of beeps. Remove diskette and turn power off, then on to restart the computer. For more information about flashing the ROM, refer to the Troubleshooting guide.
System Hardware Interrupts IRQ System Function Timer Interrupt Keyboard Interrupt Controller Cascade Serial Port (COM B) Serial Port (COM A) Unused, available for PCI Diskette Drive Parallel Port (LPT 1) IRQ System Function Real-Time Clock Unused Unused, available for PCI Unused, available for PCI Mouse Coprocessor Primary ATA (IDE) Controller Secondary ATA (IDE) Controller
System Board Diagnostic Lights1 Main Power Switch Status 3.3V_Aux LED OFF

5V_Aux/PSON LED ON

Power Button LED OFF ON
1. ON and OFF state of LEDs apply only to a good, working system board with AC power applied to the power supply. 2. Power LED on front of computer is OFF. 3. Power LED on front of computer is ON (Green). 4. 5V_Aux is ONN. 5. PSON is active = power supply turned ON. Type 2 Heatsink Clearing CMOS* The computer's configuration (CMOS) may occasionally be corrupted. If it is, it is necessary to clear the CMOS memory using the Clear CMOS button. To clear and reset the configuration, perform the following procedure: 1. Prepare the computer for disassembly.

2. 3. 4. 5.

CAUTION: The power cord must be disconnected from the power source before pushing the Clear CMOS Button (NOTE: All LEDs on the board should be OFF). Failure to do so may damage the system board Remove the access panel. Press the CMOS button located on the system board and keep it depressed for 5 seconds. Replace the access panel. Turn the computer on and run F10 Computer Setup (Setup utility) to reconfigure the system. Computer Setup information may be found on the Documentation Library CD.
* When the CMOS button is pushed or the jumper is removed, both the power-on password and the setup password become invalid because both are stored in the configuration memory. You will need to reset the passwords. Disabling or Clearing the Power-On and Setup Passwords* 1. 2. 3. 4. 5. 6. 7. 8. Turn off the computer and any external devices, and disconnect the power cord from the power outlet. Remove the access panel. Locate the header and jumper labeled E49. Remove the jumper from pins 1 and 2. Place the jumper over pin 2 only, in order to avoid losing it. Replace the access panel. Plug in the computer and turn on power. Allow the operating system to start. NOTE: Placing the jumper on pin 2 clears the current passwords and disables the password features. To re-enable the password features, repeat steps 1-3, then replace the jumper on pins 1 and 2. Repeat steps 5-6, then establish new passwords. Refer to the F10 Computer Setup (Setup utility) instructions to establish new passwords. Computer Setup information may be found on the Documentation Library CD. * When the CMOS button is pushed or the jumper is removed, both the power-on password and the setup password become invalid because both are stored in the configuration memory. You will need to reset the passwords.

2002 Compaq Computer Corporation.
Compaq Evo D310 Microtower
Illustrated Parts Map Compaq Evo Family of Personal Computers Microtower Models
Compaq, the Compaq logo, and Evo are trademarks of Compaq Information Technologies Group, L.P. Intel, Celeron, and Pentium are trademarks of Intel Corporation in the United States and other countries. All other product names mentioned herein may be trademarks of their respective companies.
Compaq shall not be liable for technical or editorial errors or omissions contained herein. The information in this document is provided as is without warranty of any kind and is subject to change without notice. The warranties for Compaq products are set forth in the express limited warranty statements accompanying such products. Nothing herein should be construed as constituting an additional warranty. June 2002 Document Part Number 292400-001
Standard and Optional Boards 1 System board for Intel processor, with thermal grease 283983-001
Memory Modules MB RAM, DDR 256 MB RAM, DDR 512 MB RAM, DDR 285648-001 285649-001 285650-001
Spare Part Number 295715-001
Miscellaneous Boards 3 * * Front audio/USB I/O board Lucent PCI Modem 3COM Chinook NIC 284247-001 239411-001 253951-001
Intel Celeron Processors with thermal grease 4 * 1.7 GHz 1.8 GHz 288691-001 288692-001
Intel Pentium P4 Processors with thermal grease 4 * * * * 2.26 GHz\512K cache 2.4 GHz\512K cache 2.0 GHz\512K cache 1.9 GHz\256K cache 1.8 GHz\256K cache 1.7 GHz\256K cache Graphics Controllers * * * nVIDIA NV11, 64 MB memory, with ATX bracket nVIDIA NV17, 64 MB memory, TV DVI ADD graphics 279777-001 267526-001 279778-001 288688-001 288689-001 273051-001 255436-001 255435-001 252919-001

Other Cards * Not shown

Cables * * System Unit * * Access panel Chassis Power supply, PFC, worldwide not spared not spared 277979-001 * * Front panel audio cable Front panel USB cable Audio cable for CD Diskette drive cable Hard drive/CD-ROM cable, 10, dual device Hard drive/CD-ROM cable, 14, dual device 255440-001 289574-001 149806-001 257309-001 257049-001 257048-001
Front bezel assembly includes front bezel, bezel blank, and: Blank front panel (EMEA use only) 2 USB and 2 audio port panel 299170-001 299171-001

*Not shown

* Not shown
Keyboards (not illustrated) Easy Access Keyboard, PS2 Connector Arabic Belgian Danish Finnish French Italian International Latin American Spanish Norwegian -171 -181 -081 -351 -051 -061 -B31 -161 -091 271122-xxx Portuguese Spanish Swedish Swiss Taiwanese Thai United Kingdom U.S. U.S. U.S. -131 -071 -101 -111 -AB1 -281 -031 -001 -002 -* * * Miscellaneous Parts 3 Front bezel assembly includes front bezel, bezel blank, and: Blank front panel (EMEA use only) 2 USB and 2 audio port panel Heatsink assembly Type 1, includes: 299170-001 299171-001 289576-001
Fan assembly with mounting base and attaching screws Heatsink Heatsink assembly Type 2, includes: Heatsink with fan assembly and retaining clips Heatsink mounting base and attaching screws Mouse, 2-button with ratchet wheel DiskOnKey, 8 MB 237241-001 249911-001 257051-001 300871-001

Mass Storage Devices GB\5400 RPM Hard drive 20 GB\7200 RPM Hard drive * * * * 2 * * * * GB\5400 RPM Hard drive 40 GB\7200 RPM Hard drive 60 GB\5400 RPM Hard drive 80 GB\7200 RPM Quiet hard drive 48X CD-ROM drive 16/10/40/12X CD ROM drive 40/10/40 CDRW drive 16X DVD drive DVD R/RW Diskette drive 249408-001 260671-001 236921-001 286692-001 286693-001 250185-001 232320-001 281749-001 286711-001 278647-001 250109-001 278644-001
Peoples Republic of China -AA1
Miscellaneous plastics kit, includes: * * * * * Bezel blank (166775-002) Power switch spring (not this product) LED holder (not this product) Cable clip (not this product) Return kit

291318-001

Computer LEDs LED Power Power Power Power Power Power Color Green Green Green None None Red LED Activity On 1 blink every 2 second 1 blink every 2 seconds Off Off 2 blinks 1 second apart, followed by 2-second pause Repeat On 1 blink every 1 second 1 blink every 2 seconds Blinking State/Message (S0) Computer on (S1) Normal Suspend Mode (S3) Suspend to RAM (S4) Suspend to Disk (if applicable) (S5) Computer off CPU thermal shutdown
Power Power Power Hard Drive

Red Red Red Green

CPU not installed ROM error Power supply crow bar Hard drive activity
Keyboard LEDs LED System Board Connectors and Jumpers (position of some untitled components may vary in location) CMOS CR1 CR2 CR4 E49 J20 J21 J22 J30 J40 P1 P3 P5 P6 P7 P8 P10 Clear CMOS 5V Aux (ON)/PSON (OFF) Power button (OK) 3.3V_Aux Password PCI Expansion slot 1 PCI Expansion slot 2 PCI Expansion slot 3 PCI extension AGP slot Power, main Power, processor (VCCP12V) Power switch/LED Speaker CD audio Chassis fan Diskette P11 P14 P16 P20 P21 P24 P27 P29 P54 P70 P124 P125 XBT2 XMM1 XMM2 XU1 Aux audio Boot block Intrusion Primary ATA Secondary ATA Front USB MultiBay SCSI LED Com port B header CPU fan Hood lock Hood sensor Battery DIMM 1 DIMM2 Processor socket Type 1 Heatsink Caps Lock Num, Caps, Scroll Lock Green Green On Blink On in sequence, one at a time - N, C, SL Num Lock Caps Lock Scroll Lock Num, Caps, Scroll Lock Num, Caps, Scroll Lock Num Lock Color Green Green Green Green Green Green LED Activity Flashing (Beeps - 1S, 2L) Flashing (Beeps - 1L, 2S) Flashing (Beeps - 2L, 1S) Flash On-Off 2 times (Beeps 1L, 3S) On (Rising Tone) On State/Message Memory error No video System board failure, prior to video Invalid system ROM detected. ROM forces reflash. ROM reflashed successfully ROMPaq diskette not present, is bad, or drive not ready.* Enter password. Keyboard locked in network mode

* Insert valid ROMPaq diskette in drive A. Turn power switch off, then on to reflash ROM. If ROM flash is successful, all three keyboard LEDs will light up, and you will hear a rising tone series of beeps. Remove diskette and turn power off, then on to restart the computer. For more information about flashing the ROM, refer to the Troubleshooting guide.
System Hardware Interrupts IRQ System Function Timer Interrupt Keyboard Interrupt Controller Cascade Serial Port (COM B) Serial Port (COM A) Unused, available for PCI Diskette Drive Parallel Port (LPT 1) IRQ System Function Real-Time Clock Unused Unused, available for PCI Unused, available for PCI Mouse Coprocessor Primary ATA (IDE) Controller Secondary ATA (IDE) Controller
System Board Diagnostic Lights1 Main Power Switch Status OFF

3.3V_Aux LED ON ON

5V_Aux/PSON LED ON

Power Button LED OFF ON

1. ON and OFF state of LEDs apply only to a good, working system board with AC power applied to the power supply. 2. Power LED on front of computer is OFF. 3. Power LED on front of computer is ON (Green). 4. 5V_Aux is ONN. 5. PSON is active = power supply turned ON.
Clearing CMOS* The computer's configuration (CMOS) may occasionally be corrupted. If it is, it is necessary to clear the CMOS memory using the Clear CMOS button. To clear and reset the configuration, perform the following procedure: 1. Prepare the computer for disassembly.

Type 2 Heatsink

2. 3. 4. 5.
CAUTION: The power cord must be disconnected from the power source before pushing the Clear CMOS Button (NOTE: All LEDs on the board should be OFF). Failure to do so may damage the system board Remove the access panel. Press the CMOS button located on the system board and keep it depressed for 5 seconds. Replace the access panel. Turn the computer on and run F10 Computer Setup (Setup utility) to reconfigure the system. Computer Setup information may be found on the Documentation Library CD.
* When the CMOS button is pushed or the jumper is removed, both the power-on password and the setup password become invalid because both are stored in the configuration memory. You will need to reset the passwords. Disabling or Clearing the Power-On and Setup Passwords* 1. 2. 3. 4. 5. 6. 7. 8. Turn off the computer and any external devices, and disconnect the power cord from the power outlet. Remove the access panel. Locate the header and jumper labeled E49. Remove the jumper from pins 1 and 2. Place the jumper over pin 2 only, in order to avoid losing it. Replace the access panel. Plug in the computer and turn on power. Allow the operating system to start. NOTE: Placing the jumper on pin 2 clears the current passwords and disables the password features. To re-enable the password features, repeat steps 1-3, then replace the jumper on pins 1 and 2. Repeat steps 5-6, then establish new passwords. Refer to the F10 Computer Setup (Setup utility) instructions to establish new passwords. Computer Setup information may be found on the Documentation Library CD. * When the CMOS button is pushed or the jumper is removed, both the power-on password and the setup password become invalid because both are stored in the configuration memory. You will need to reset the passwords.