HP Compaq 6000 Pro SFF Troubleshooting Manual page 18

Table 2-1 Solving General Problems (continued)
System does not power on and the LEDs on the front of the computer are not flashing.
Cause
12 Chapter 2 Troubleshooting Without Diagnostics
Solution
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 off, then replace
the power supply.
6. Replace the system board.
ENWW