AC power
LED (green)
DC power
LED (green)
Power-supply
error LED (amber)
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.
AC power-supply LEDs
Description Action NotesAC DC Error (!)
On On Off Normal operation.
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. If the problem remains,
replace the power-supply.
This is a normal
condition when no ac
power is present.
Off Off On The power supply
has failed.
Replace the power supply.
Off On Off The power supply
has failed.
Replace the power supply.
Off On On The power supply
has failed.
Replace the power supply.
26 System x3650 M4 Type 7915: Installation and User’s Guide
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