Compaq 226824-001 - ProLiant - ML750 Setup And Installation Manual page 225

Table E-4
Is the Auxiliary Power LED On?
Answer Possible Reasons
Yes There is a broken connection between the
system board and power switch.
A power supply problem may exist. The power
supply may not be connected or inserted
properly, may have a damaged connector, or it
may have failed.
The power supply backplane may need to be
replaced.
There is a broken cable connection between the
system and backplane.
A system interconnect problem exists.
continued
Troubleshooting E-9
The Next Step
The system LED is not on, but there is
auxiliary power. The power switch cable
may not be connected to the system
board. Try reconnecting the power switch
cable.
The system interconnect LED indicator
indicators have power connected and can
be used for further diagnosis.
Go to Table E-5.