
Getting Started
Getting Started www.hp.com 33
System does not
power on and
LEDs are not
flashing.
(continued)
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.
5. If the 5V_aux light on
the system board is
not turned on, then
replace the power
supply.
6. Replace the system
board.
Diagnostic Front Panel LEDs and Audible Codes
Activity Beeps
Possible
Cause
Recommended
Action
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