HP Compaq dx2250 Service & Reference Manual page 125

Table D-1 Solving General Problems (continued)
System does not power on and the LEDs on the front of the computer are not flashing.
Cause
ENWW
Solution
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 off, then replace
the power supply.
6. Replace the system board.
Solving General Problems 119