Dell Precision 470 - Manual (Page 133)

Tools to Help Solve Problems: Dell Precision Workstation 470 and 670 Computers User's Guide
file:///T|/htdocs/systems/ws670/EN/ug_en/advtrbl.htm[3/20/2013 9:31:57 AM]
off
off
yellow
off
A possible system board
failure has occurred.
Contact Dell for technical assistance.
yellow
off
yellow
off
A processor and/or VRM
mismatch exists.
Perform the procedure in " Processor Problems ."
green
yellow
yellow
off
A possible VRM 0 failure
has occurred.
Contact Dell for technical assistance.
yellow
green
yellow
green
A possible VRM 1 failure
has occurred.
Perform the procedure in " Processor Problems ."
green
green
yellow
off
A possible VRM 0 and VRM
1 failure has occurred.
Contact Dell for technical assistance.
Diagnostic Light Codes During POST
Light Pattern Problem Description Suggested Resolution
yellow
yellow
green
yellow
A possible processor
failure has occurred.
Reinstall the processor and restart the computer.
yellow
yellow
green
green
Memory modules are
detected, but a memory
failure has occurred.
1. Reseat the memory modules to ensure that your computer is
successfully communicating with the memory.
2. Restart the computer.
3. If the problem still exists, remove all the memory modules and
install one memory module in memory module connector 1
(DIMM_1).
4. Restart the computer.
The following message appears: Alert! Operating in Debug
Mode. Please Populate Memory in Pairs for Normal
Operation
.
5. Press <F1> to boot to the operating system.
6. Run the Dell Diagnostics .
7. If the memory module passes, shut down the computer,