Dell Precision 690 Quick Reference Guide - Page 37

Diagnostic Light Codes During POST - motherboard

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Diagnostic Lights (blinking) Power Light amber Problem Description A possible power supply failure has occurred. Suggested Resolution Verify that both power supply cables are plugged in to the motherboard. Diagnostic Light Codes During POST The power light displays a solid green for diagnostic light codes during POST. Light Pattern Problem Description A possible processor failure has occurred. Suggested Resolution Reinstall the processor and restart the computer. A possible expansion card failure has occurred. 1 Determine if a conflict exists by removing a card (not the graphics card) and then restarting the computer. 2 If the problem persists, reinstall the card that you removed, remove a different card, and then restart the computer. 3 Repeat this process for each card. If the computer starts normally, troubleshoot the last card removed from the computer for resource conflicts (see "Resolving Software and Hardware Incompatibilities" on page 30). 4 Move each card one at a time to a different PCI slot and restart the computer after each move. 5 If the problem persists, contact Dell. Quick Reference Guide 37

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Quick Reference Guide
37
Diagnostic Light Codes During POST
The power light displays a solid green for diagnostic light codes during POST.
(blinking)
amber
A possible power supply
failure has occurred.
Verify that both power supply cables are
plugged in to the motherboard.
Diagnostic Lights
Power
Light
Problem Description
Suggested Resolution
Light Pattern
Problem Description
Suggested Resolution
A possible processor failure
has occurred.
Reinstall the processor and restart
the computer.
A possible expansion card failure
has occurred.
1
Determine if a conflict exists by
removing a card (not the graphics
card) and then restarting the
computer.
2
If the problem persists, reinstall the
card that you removed, remove a
different card, and then restart the
computer.
3
Repeat this process for each card.
If the computer starts normally,
troubleshoot the last card removed
from the computer for resource
conflicts (see "Resolving Software
and Hardware Incompatibilities"
on page 30).
4
Move each card one at a time to
a different PCI slot and restart
the computer after each move.
5
If the problem persists, contact Dell
.