Dell Precision 450 Guide De Configuration Et De Référence Rapide page 39

Light Pattern
A B C D
A B C D
A B C D
A B C D
= y e l l o w
= g r e e n
= o f f
Problem Description
A possible expansion card
failure has occurred.
A possible graphics card
failure has occurred.
A possible floppy or hard
drive failure has occurred.
A possible USB failure has
occurred.
Suggestion Resolution
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" in your User's Guide).
4
If the problem persists, contact Dell.
Reinstall the graphics card and restart the computer.
If the problems still exists, install a graphics card that
you know works and restart the computer.
If the problem persists, contact Dell.
Check all power and data cable connections, and then
restart the computer.
Reinstall all USB devices, check cable connections,
and then restart the computer.
Setup and Quick Re ference Guide
39