HP Dc7900 Troubleshooting Guide - Page 19
Solving General Problems continued, Table 2-1
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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 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 Solving General Problems 13
System does not power on and the LEDs on the front of the computer are not flashing.
Cause
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.
Table 2-1
Solving General Problems (continued)
ENWW
Solving General Problems
13