Dell Precision R3961 Quick Reference Manual page 31

Light Pattern
yellow
off
A B C D
yellow
off
green
yellow
A B C D
yellow
off
yellow
green
A B C D yellow
green
green
green
A B C D yellow
off
= yellow
= green
= off
Diagnostic Light Codes During POST
Light Pattern
yellow
yellow
A B C D
green
yellow
= yellow
= green
= off
Problem Description
A processor and/or VRM
mismatch exists.
A possible VRM 0 failure
has occurred.
A possible VRM 1 failure
has occurred.
A possible VRM 0 and VRM 1
failure has occurred.
Problem Description
A possible processor failure has occurred. Reinstall the processor and restart
Suggested Resolution
Perform the procedure in "Processor Problems" in the
User's Guide.
Contact Dell for technical assistance.
Perform the procedure in "Processor Problems" in the
User's Guide.
Contact Dell for technical assistance.
Suggested Resolution
the computer.
Quick Reference Guide
31