Filter
Top Products
36 Setup and Quick Reference Guide
www.dell.com | support.dell.com
Possible USB failure. Disconnect all USB devices and cables, and
restart the computer to retest. Then reconnect
all USB devices and cables, and restart the
computer to retest.
If the problem is still not resolved, contact Dell
for technical assistance.
Possible system board resource and/or hardware
failure.
See "System Board Problems" and "Hardware
Conflicts" in the User’s Guide.
Possible system board resource and/or hardware
failure.
See "System Board Problems" and "Hardware
Conflicts" in the User’s Guide.
Possible expansion card failure or conflict. See "System Board Problems" and "Hardware
Conflicts" in the User’s Guide.
Possible system board resource and/or hardware
failure.
See "System Board Problems" and "Hardware
Conflicts" in the User’s Guide.
Normal operating condition after POST. No action is necessary.
Diagnostic Light Codes During POST (continued)
Light Pattern Cause Action
= yellow
= green
= off
A B C D
A B C D
A B C D
A B C D
A B C D
A B C D