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IBM 7945G2U Installation And User Manual page 36

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Table 2. Power-supply LEDs
AC power-supply LEDs
AC
DC
Error
Off
Off
Off
Off
Off
On
Off
On
Off
Off
On
On
On
Off
Off
On
Off or
On
Flashing
On
On
Off
On
On
On
The following table describes the problems that are indicated by various
combinations of the power-supply LEDs on a dc power supply and suggested
actions to correct the detected problems.
20
System x3650 M3 Types 4255, 7945, and 7949: Installation and User's Guide
Description
Action
No ac power to
1. Check the ac power to the server.
the server or a
2. Make sure that the power cord is
problem with the
connected to a functioning power
ac power source
source.
3. Turn the server off and then turn the
server back on.
4. If the problem remains, replace the
power supply.
No ac power to
1. Replace the power supply.
the server or a
2. Make sure that the power cord is
problem with the
connected to a functioning power
ac power source
source.
and the power
supply had
detected an
internal problem
Faulty power
Replace the power supply.
supply
Faulty power
Replace the power supply.
supply
Power supply not
1. (Trained service technician only)
fully seated,
Reseat the power supply.
faulty system
2. If a power channel error LED on the
board, or faulty
system board is not lit, replace the
power supply
power-supply (see the documentation
that comes with the power supply for
instructions).
3. If a power channel error LED on the
system board is lit, (trained service
technician only) replace the system
board.
Faulty power
Replace the power supply.
supply
Normal operation
Power supply is
Replace the power supply.
faulty but still
operational
Notes
This is a normal
condition when no
ac power is present.
This happens only
when a second
power supply is
providing power to
the server.
Typically indicates
that a power supply
is not fully seated.

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