HP 100B Maintenance & Service Guide HP 100B All-in-One - Page 90

Appendix A, POST Error Messages - motherboard

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Table A-1 Numeric Codes and Text Messages (continued) Control panel message Description Recommended action 301-Keyboard Error Keyboard failure. 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. 303-Keyboard Controller Error I/O board keyboard controller. 1. Reconnect keyboard with computer turned off. 2. Replace the system board. 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. 510-Flash Screen Image Corrupted Flash Screen image has errors. Reflash the system ROM with the latest BIOS image. 511-CPU 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-Rear Chassis Fan not Detected Rear chassis fan is not connected or may have malfunctioned. 1. Reseat rear chassis fan. 2. Reseat fan cable. 3. Replace rear chassis fan. 513-Front Chassis fan not detected Front chassis fan is not connected or may have malfunctioned. 1. Reseat front chassis fan. 2. Reseat fan cable. 3. Replace front chassis fan. 912-Computer Cover Has Been Removed Since Last System Startup Computer cover was removed since last system startup. No action required. 917-Front Audio Not Connected Front audio harness has been detached or unseated from motherboard. Reconnect or replace front audio harness. 921-Device in PCI Express slot failed to initialize There is an incompatibility/problem with this device and the system or PCI Express Link could not be retrained to an x1. Try rebooting the system. If the error reoccurs, the device may not work with this system 82 Appendix A POST Error Messages

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Table A-1
Numeric Codes and Text Messages (continued)
Control panel message
Description
Recommended action
301-Keyboard Error
Keyboard failure.
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.
303-Keyboard Controller Error
I/O board keyboard controller.
1.
Reconnect keyboard with computer
turned off.
2.
Replace the system board.
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.
510-Flash Screen Image Corrupted
Flash Screen image has errors.
Reflash the system ROM with the latest BIOS
image.
511-CPU 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-Rear Chassis Fan not Detected
Rear chassis fan is not connected or may
have malfunctioned.
1.
Reseat rear chassis fan.
2.
Reseat fan cable.
3.
Replace rear chassis fan.
513-Front Chassis fan not detected
Front chassis fan is not connected or may
have malfunctioned.
1.
Reseat front chassis fan.
2.
Reseat fan cable.
3.
Replace front chassis fan.
912-Computer Cover Has Been Removed
Since Last System Startup
Computer cover was removed since last
system startup.
No action required.
917-Front Audio Not Connected
Front audio harness has been detached or
unseated from motherboard.
Reconnect or replace front audio harness.
921-Device in PCI Express slot failed to
initialize
There is an incompatibility/problem with this
device and the system or PCI Express Link
could not be retrained to an x1.
Try rebooting the system. If the error
reoccurs, the device may not work with this
system
82
Appendix A
POST Error Messages