IBM System x3550 M4 Installation And User Manual page 42

DC power-supply LEDs
IN OK OUT OK
On Off
On Off
On On
26
IBM System x3550 M4 Type 7914: Installation and User's Guide
Error (!) Description
Off Power-supply not
fully seated, faulty
system board, or
the power supply
has failed.
On The power supply
has failed.
On The power supply
has failed.
Action
1. Reseat the power supply.
2. Follow actions in the "Power
problems" under the
Troubleshooting tables in the
Problem Determination and
Service Guide.
3. If the OVER SPEC LED on
the light path diagnostics is
lit, follow the actions in "Light
path diagnostics LEDs" on
page 17.
4. If the OVER SPEC LED on
the light path diagnostics is
not lit, check the error LEDs
on the system board and the
IMM2 error messages. Follow
steps in the "Power
problems" under the
Troubleshooting tables in the
Problem Determination and
Service Guide and "Solving
Power problems" in the
Problem Determination and
Service Guide until the
problem is solved.
Replace the power supply.
Replace the power supply.
Notes
Typically indicates a
power-supply is not
fully seated.