HP dc73 Troubleshooting Guide - Page 57

POST Numeric Codes and Text Messages

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Table A-1 Numeric Codes and Text Messages (continued) Control panel message Description Recommended action 304-Keyboard or System Unit Error Keyboard failure. 1. Reconnect the keyboard with computer turned off. 2. Ensure that none of the keys are depressed. 3. Replace the keyboard. 4. Replace the system board. 404-Parallel Port Address Conflict Detected Both external and internal ports are assigned 1. Remove any parallel port expansion to parallel port X. cards. 2. Clear CMOS. (See Appendix B, Password Security and Resetting CMOS on page 58.) 3. Reconfigure card resources and/or run Computer Setup. 410-Audio Interrupt Conflict IRQ address conflicts with another device. Enter Computer Setup and reset the IRQ in Advanced > Onboard Devices. 411-Network Interface Card Interrupt Conflict IRQ address conflicts with another device. Enter Computer Setup and reset the IRQ in Advanced > Onboard Devices. 501-Display Adapter Failure Graphics display controller. 1. Reseat the graphics card (if applicable). 2. Clear CMOS. (See Appendix B, Password Security and Resetting CMOS on page 58.) 3. Verify monitor is attached and turned on. 4. Replace the graphics card (if possible). 510-Flash Screen Image Corrupted Flash Screen image has errors. Reflash the system ROM with the latest BIOS image. 511-CPU, CPUA, or CPUB Fan not Detected CPU fan is not connected or may have malfunctioned. 1. Reseat CPU fan. 2. Reseat fan cable. 3. Replace CPU fan. 512-Chassis, Rear Chassis, or Front Chassis Chassis, rear chassis, or front chassis fan is 1. Reseat chassis, rear chassis, or front Fan not Detected not connected or may have malfunctioned. chassis fan. 2. Reseat fan cable. 3. Replace chassis, rear chassis, or front chassis fan. 514-CPU or Chassis Fan not Detected CPU or chassis fan is not connected or may 1. have malfunctioned. 2. Reseat CPU or chassis fan. Reseat fan cable. 3. Replace CPU or chassis fan. 601-Diskette Controller Error Diskette controller circuitry or floppy drive circuitry incorrect. 1. Run Computer Setup. 2. Check and/or replace cables. 3. Clear CMOS. (See Appendix B, Password Security and Resetting CMOS on page 58.) 4. Replace diskette drive. 5. Replace the system board. ENWW POST Numeric Codes and Text Messages 51

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Control panel message
Description
Recommended action
304-Keyboard or System Unit Error
Keyboard failure.
1.
Reconnect the keyboard with computer
turned off.
2.
Ensure that none of the keys are
depressed.
3.
Replace the keyboard.
4.
Replace the system board.
404-Parallel Port Address Conflict Detected
Both external and internal ports are assigned
to parallel port X.
1.
Remove any parallel port expansion
cards.
2.
Clear CMOS. (See Appendix B,
Password Security and Resetting
CMOS
on page
58
.)
3.
Reconfigure card resources and/or run
Computer Setup.
410-Audio Interrupt Conflict
IRQ address conflicts with another device.
Enter Computer Setup and reset the IRQ in
Advanced
>
Onboard Devices
.
411-Network Interface Card Interrupt Conflict
IRQ address conflicts with another device.
Enter Computer Setup and reset the IRQ in
Advanced
>
Onboard Devices
.
501-Display Adapter Failure
Graphics display controller.
1.
Reseat the graphics card (if applicable).
2.
Clear CMOS. (See Appendix B,
Password Security and Resetting
CMOS
on page
58
.)
3.
Verify monitor is attached and turned
on.
4.
Replace the graphics card (if possible).
510-Flash Screen Image Corrupted
Flash Screen image has errors.
Reflash the system ROM with the latest BIOS
image.
511-CPU, CPUA, or CPUB Fan not Detected
CPU fan is not connected or may have
malfunctioned.
1.
Reseat CPU fan.
2.
Reseat fan cable.
3.
Replace CPU fan.
512-Chassis, Rear Chassis, or Front Chassis
Fan not Detected
Chassis, rear chassis, or front chassis fan is
not connected or may have malfunctioned.
1.
Reseat chassis, rear chassis, or front
chassis fan.
2.
Reseat fan cable.
3.
Replace chassis, rear chassis, or front
chassis fan.
514-CPU or Chassis Fan not Detected
CPU or chassis fan is not connected or may
have malfunctioned.
1.
Reseat CPU or chassis fan.
2.
Reseat fan cable.
3.
Replace CPU or chassis fan.
601-Diskette Controller Error
Diskette controller circuitry or floppy drive
circuitry incorrect.
1.
Run Computer Setup.
2.
Check and/or replace cables.
3.
Clear CMOS. (See Appendix B,
Password Security and Resetting
CMOS
on page
58
.)
4.
Replace diskette drive.
5.
Replace the system board.
Table A-1
Numeric Codes and Text Messages (continued)
ENWW
POST Numeric Codes and Text Messages
51