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- HP Community
- Archived Topics
- Desktops (Archived)
- hp compaq dc7100 will not start.

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02-12-2012 05:32 PM
Hi:
Here is the list of beep codes for your PC:
Power LED # Beeps Event
Steady green None S0 System on (normal operation)
Blinks green @ 0.5 Hz None S1 Suspend
Blinks green @ 0.5 Hz None S3 Suspend to RAM
Off (clear) None S4 Suspend to disk
Off (clear) None S5 Soft off
Blinks red 2 times @ 1 Hz [1] 2 Processor thermal shutdown
Blinks red 3 times @ 1 Hz [1] 3 Processor not seated / installed
Blinks red 4 times @ 1 Hz [1] 4 Power supply failure
Blinks red 5 times @ 1 Hz [1] 5 Memory error
Blinks red 6 times @ 1 Hz [1] 6 Video error
Blinks red 7 times @ 1 Hz [1] 7 PCA failure
Blinks red 8 times @ 1 Hz [1] 8 Invalid ROM checksum (error)
Blinks red 9 times @ 1 Hz [1] 9 Wrong power supply input voltage
Blinks red10 times @ 1 Hz [1] 10 Bad option card
NOTE: Power LED blinks are repeated after a 2 second pause until issue is resolved,.
Beeps continue for 5 iterations and then stop.
Paul
12-13-2013 07:37 AM
Hi:
Here are the possible solutions to the 9 Beeps:
1. Check that the voltage selector, located on the rear of the power supply (some models), is set to the appropriate voltage. Proper voltage setting depends on your region.
2. Replace the system board.
3. Replace the processor.
