HP Point of Sale rp5000 Troubleshooting Manual page 26

Troubleshooting Without Diagnostics
Solving Power Supply Problems (Continued)
Problem
System does not power on
and LEDs are not flashing.
2–10
Cause
System unable to power
on.
www.hp.com
Solution
Press and hold the power button for
less than 4 seconds. If the hard
drive LED turns green, then:
1. Check that the voltage selector,
located on the rear of the
power supply, is set to the
appropriate voltage. Proper
voltage setting depends on your
region.
2. Remove the expansion cards
one at a time until the AUX LED
light on the system board turns
on.
3. Replace the system board.
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 AUX LED
light on the system board is
turned on. If it is turned on, then
replace the power button
harness.
Troubleshooting Guide