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Server Power Features - IBM 7945G2U Installation And User Manual

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DC power-supply LEDs
IN OK
OUT OK
On
On
Off
Off
Off
Off
Off
On
Off
On
On
Off
On
Off
On
On

Server power features

When the server is connected to a power source but is not turned on, the operating
system does not run, and all core logic except for the integrated management
module (IMM) is shut down; however, the server can respond to requests from the
IMM, such as a remote request to turn on the server. The power-on LED flashes to
indicate that the server is connected to power but is not turned on.
Error (!)
Description
Off
Normal operation
Off
No dc power to the
server or a problem
with the dc power
source.
On
No dc power to the
server or a problem
with the dc power
source and the
power-supply had
detected an internal
problem.
Off
Faulty
power-supply
On
Faulty
power-supply
Off
Power-supply not
fully seated, faulty
system board, or
faulty power-supply
On
Faulty
power-supply
On
Power-supply is
faulty but still
operational
Action
1. Check the dc power to the
server.
2. Make sure that the power
cord is connected to a
functioning power source.
3. Restart the server. If the error
remains, check the
power-supply LEDs.
4. Replace the power-supply.
v Make sure that the power cord
is connected to a functioning
power source.
v Replace the power supply
(see the documentation that
comes with the power supply
for instructions).
Replace the power supply.
Replace the power supply.
1. (Trained service technician
only) Reseat the power
supply.
2. If a power channel error LED
on the system board is not lit,
replace the 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.
Replace the power supply.
Replace the power supply.
Chapter 1. The System x3650 M3 server
Notes
This is a normal
condition when no dc
power is present.
This happens only
when a second power
supply is providing
power to the server.
Typically indicates a
power-supply is not
fully seated.
21

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