Quick Reference Guide
33
A possible graphics card failure has
occurred.
• If the computer has a graphics card,
remove the card, reinstall it, and then
restart the computer. For more
information on reinstalling the
graphics card, see your
User’s Guide
.
• 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 more information on
contacting Dell, see your
User’s Guide
.
A possible floppy or hard drive failure
has occurred.
Reseat all power and data cables and
restart the computer.
A possible USB failure has occurred.
Reinstall all USB devices, check cable
connections, and then restart the
computer.
Light Pattern
Problem Description
Suggested Resolution
= yellow
= green
= off
A B C D
A B C D
A B C D
Summary of Contents for Precision U3525
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Page 21: ...Quick Reference Guide 21 release button security cable slot padlock ring release button ...
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Page 84: ...4 Inhalt ...
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