Compaq 226824-001 - ProLiant - ML750 Setup And Installation Manual page 221

Check to see if the power supply and system fans are running. Verify this visually.
Answer Possible Reasons
No Power switch has not been pressed.
There is a broken connection between the
system board and power switch.
No AC power.
A power supply problem exists. 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.
Yes A power supply problem may exist. A power
supply may have an internal problem, may have
a damaged connector, or it may have failed.
The power supply backplane may need to be
replaced.
Table E-2
Did the Power Supply Turn On?
Troubleshooting E-5
The Next Step
Press the power switch.
If the server does not start, further
information is needed.
Go to Question 3 in Table E-1.
If your power supply starts, and you can
verify operation of the power supply and
system fans, then you may assume that
the following is true:
AC power is connected to the power


supply and providing adequate
power.
The cable connection between the


system and backplane is good.
The connection between the system


board and power switch is good.
No system interconnect problem


exists.
More information is needed.
Go to Table E-6.