Dell Precision N8151 Quick Reference Manual page 39

Light Pattern 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.
Suggested Resolution
1
Determine if a conflict exists by
removing a card (not the graphics
card) and then restarting the
computer. For more information on
removing a card, see your User's
Guide.
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 32).
4
If the problem persists, contact Dell.
For instructions on contacting Dell,
see your User's Guide.
• If the computer has a graphics card,
remove the card, reinstall it, and then
restart the computer.
• If the problem still exists, install a
graphics card that you know works and
restart the computer.
• If the problem persists or the
computer has integrated graphics,
contact Dell. For instructions on
contacting Dell, see your User's Guide.
Reseat all power and data cables and
restart the computer.
Reinstall all USB devices, check cable
connections, and then restart the
computer.
Quick Reference Guide
39