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Light Pattern
Problem Description
A possible expansion card failure has
occurred.
A
B
C
D
Another failure has occurred.
A
B
C
D
The computer is in a normal operating
condition after POST.
A
B
C
D
= yellow
= green
= off
Suggested Resolution
Determine if a conflict exists by
1
removing a card (not a video card)
(see page 89) and restarting the
computer.
If the problem persists, reinstall
2
the card that you removed, remove
a different card, and then restart
the computer.
Repeat this process for each card.
3
If the computer starts normally,
troubleshoot the last card removed
from the computer for resource
conflicts (see "Resolving Software
and Hardware Incompatibilities"
on page 71).
If the problem persists, contact
4
Dell (see page 129).
• Ensure that the cables are properly
connected to the system board (see
page 85) from the hard drive, CD
drive, and DVD drive.
• If the problem persists, contact
Dell (see page 129).
None.
Advanced Troubleshooting
63
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