Hi,
First of all I need to know the model of the server that you are using
assuming for L, N class
------------------------
You can goto GSP to check for the power supply status
To GSP
-------
1) Ctrl+b
2) press the enter button twice (default)
3) GSP>PS <--- check the status of the power supply
4) GSP>co <--- to exit from GSP and back to root
OR
from mstm, highlight system then goto Tools->Information->Run
Watch out something like
----------------
|0|0|0|0|0|0|0|0
|0|1|2|3|4|5|6|7
|-|-|-|-|-|-|-|-
cf(b) |p|p|p|p|p|p|p|p
cps |p|p|p| | | | | <-- cpf = cabinet power supply
----------------
p = passed
F = failed