Diagnostic Front Panel LEDs and Audible Codes

	Possible	Recommended
Activity	Beeps Cause	Action

System does not power on and LEDs are not flashing.

(continued)

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.

5.If the 5V_aux light on the system board is not turned on, then replace the power supply.

6.Replace the system board.

HP dx6100 manual Diagnostic Front Panel LEDs and Audible Codes