HP Dc7900 Troubleshooting Guide - Page 66

Table A-2, Activity, Beeps, Possible Cause, Recommended Action

Page 66 highlights

Table A-2 Diagnostic Front Panel LEDs and Audible Codes (continued) Activity Beeps Possible Cause Recommended Action 4. Check to see if the 5V_aux light on the system board is turned on. If it is turned on, then replace the power button harness. If the problem persists, replace the system board. 5. If the 5V_aux light on the system board is not turned on, remove the expansion cards one at a time until the 5V_aux light on the system board turns on. It the problem persists, replace the power supply. 60 Appendix A POST Error Messages ENWW

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Activity
Beeps
Possible Cause
Recommended Action
4.
Check to see if the 5V_aux light on the
system board is turned on. If it is turned on,
then replace the power button harness. If the
problem persists, replace the system board.
5.
If the 5V_aux light on the system board is not
turned on, remove the expansion cards one
at a time until the 5V_aux light on the system
board turns on. It the problem persists,
replace the power supply.
Table A-2
Diagnostic Front Panel LEDs and Audible Codes (continued)
60
Appendix A
POST Error Messages
ENWW