Diagnostic Light Codes During Post - Dell Precision D490 Quick Reference Manual

Diagnostic Lights Power
Light
amber
(blinking)

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. Reinstall the processor and restart the
A possible expansion card failure has
occurred.
Problem Description
A possible power supply
failure has occurred.
Suggested Resolution
Verify that both power supply cables are
plugged in to the motherboard.
Suggested Resolution
computer.
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 29).
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
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