Power supply LED errors
Use the power supply LED information to trouble shoot power supply problems.
Note:
The minimum configuration required for the DC Good light to come on is:
I/O Board
Midplane
Power Control Card
Processor Controller Card
Memory Carrier
128MB DIMM
Power Supply (one or more)
-Important-
If you cannot power the system off with the front panel switch:
Table 15. Power Supply LED Errors
If the DC Good LED off condition stays with the power supply position, replace FRUs in the following
order, then go to (below) step 10.
If the DC Good LED is on after swapping power supplies, replace the power supply that was removed,
then go to step 10.
Please see the LEGAL - Trademark notice.
AC
Good
LEDDC
Good
LEDError
FRU/Action
Off
Off
No power to system or
a problem with the ac
power source.1. Check ac power source.
2. Power Supply
3. Midplane
4. Power Control Card
On
Off
Standby mode or dc
problem.Go to (below)
'AC LED on/DC LED off'
On
On
Power is OK
None
AC LED on/DC LED off: If the AC LED is on and the DC LED is off, do the following:
See 'Power control card LED').
If the DC Good LED off condition stays with the power supply, replace FRUs in the following order:
Check the LEDs again.
If DC Good LEDs are lit on all power supplies, continue with system checkout. If not, continue with step 5.
If the DC Good LED is still off, replace FRUs in the following order, then go to (above) step 10.
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