Power-supply LEDs
This information provides the location of the power-supply LEDs.
The following minimum configuration is required for the AC LED on the power
supply to be lit:
v Power supply
v Power cord
v Appropriate input power from the power source
The following minimum configuration is required for the server to start:
v One microprocessor in microprocessor socket 1
v One 4GB DIMM in a DIMM connector that is associated with microprocessor
socket 1 on the system board
v One power supply
v Power cord
v Six cooling fans
The following illustration shows the locations of the power-supply LEDs.
The following table describes the problems that are indicated by various
combinations of the power-supply LEDs and the power-on LED on the operator
information panel and suggested actions to correct the detected problems.
Table 24. Power-supply LED descriptions and actions to correct detected problems
Power-supply LEDs
Description Action NotesAC DC Error
On On Off Normal operation The server is
functioning
correctly.
Off Off Off No ac power to the
server or a problem
with the ac power
source.
1. Check the ac 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.
This is a normal
condition when no
ac power is present.
Chapter 4. Troubleshooting 179
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