HP Dc7700 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 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. ENWW Solving General Problems 13

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System does not power on and the LEDs on the front of the computer are not flashing.
Cause
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.
Table 2-1
Solving General Problems (continued)
ENWW
Solving General Problems
13