If the dc LED is not lit for a power supply, the problem could
be in the power supply or the power supply bay.
Problem
For a power supply, the ac LED is lit, but
the dc LED is not lit.
Investigation
Perform these steps to resolve the
problem:
- Log on to the advanced management module and
view the event log to determine if there are any power-related error messages.
If so, contact IBM support.
- Swap this power supply with another supply that is working
correctly. If the ac and dc leds are lit for the swapped power
supply, replace the other power supply.
- If the dc LED on the replacement power supply is not lit, or if multiple
power supplies have the ac LED on and dc LED off, remove the SPC chassis and
reinsert it.
Note: The System Power and Cooling chassis (SPC chassis)
is a field-replaceable unit (FRU). Therefore, it should be removed only by
a trained service technician.
- If the problem persists, contact IBM support.