HP ProLiant DL760 Server - Manual (Page 204)

Troubleshooting Information E-5
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Table E-2
Did Power Supply Turn On?
Check to see if the power supply and system fans are running. Verify this visually.
Answer Possible Reasons The Next Step
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.
Press the power switch.
If the server does not start, further
information is needed.
Go to Question 3 in Table E-1.
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.
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.