IBM Redboks System x3550 M4, Installation And User Manual

Page: 42 / 158

DC power-supply LEDs
Description Action Notes IN OK OUT OK Error (!)
On Off Off Power-supply not
fully seated, faulty
system board, or
the power supply
has failed.
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.
Typically indicates a
power-supply is not
fully seated.
On Off On The power supply
has failed. Replace the power supply.
On On On The power supply
has failed. Replace the power supply.
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IBM System x3550 M4 Type 7914: Installation and User’s Guide