HP 100B Maintenance & Service Guide HP 100B All-in-One - Page 98

Table A-2, Activity, Beeps, Possible Cause, Recommended Action - all in one power supply

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Table A-2 Diagnostic Front Panel LEDs and Audible Codes (continued) Activity Beeps Possible Cause Recommended Action Red Power LED flashes eleven 11 times, once every second, followed by a two second pause. Beeps stop after fifth iteration but LEDs continue until problem is solved. The current processor does 1. Install a TXT capable processor. not support a feature previously enabled on this 2. Disable TXT in the Computer Setup (F10) system. utility. 3. Reinstall the original processor. System does not power on and None LEDs are not flashing. System unable to power on. Press and hold the power button for less than 4 seconds. If the hard drive LED turns green, the power button is working correctly and the system board needs to be replaced. OR Press and hold the power button for less than 4 seconds. If the hard drive LED does not turn on green then: 1. Check that the unit is plugged into a working AC outlet. 2. Open hood and check that the power button harness is properly connected to the system board. 3. Check that both power supply cables are properly connected to the system board. 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. 90 Appendix A POST Error Messages

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Table A-2
Diagnostic Front Panel LEDs and Audible Codes (continued)
Activity
Beeps
Possible Cause
Recommended Action
Red Power LED flashes eleven
times, once every second,
followed by a two second
pause. Beeps stop after fifth
iteration but LEDs continue until
problem is solved.
11
The current processor does
not support a feature
previously enabled on this
system.
1.
Install a TXT capable processor.
2.
Disable TXT in the Computer Setup (F10)
utility.
3.
Reinstall the original processor.
System does not power on and
LEDs are not flashing.
None
System unable to power
on.
Press and hold the power button for less than 4
seconds. If the hard drive LED turns green, the
power button is working correctly and the system
board needs to be replaced.
OR
Press and hold the power button for less than 4
seconds. If the hard drive LED does not turn on
green then:
1.
Check that the unit is plugged into a working
AC outlet.
2.
Open hood and check that the power button
harness is properly connected to the system
board.
3.
Check that both power supply cables are
properly connected to the system board.
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.
90
Appendix A
POST Error Messages