IBM System x3650 M4 Type 7915 Installation And User Manual page 44

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
AC DC
On On
Off Off
Off Off
Off On
Off On
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System x3650 M4 Type 7915: Installation and User's Guide
Error (!) Description
Off Normal operation.
Off No ac power to the
server or a problem
with the ac power
source.
On The power supply
has failed.
Off The power supply
has failed.
On The power supply
has failed.
Action
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.
Replace the power supply.
Replace the power supply.
Replace the power supply.
AC power
LED (green)
DC power
LED (green)
Power-supply
error LED (amber)
Notes
This is a normal
condition when no ac
power is present.