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Advanced Troubleshooting 45
A possible video card failure
has occurred.
• If the computer has a video card,
remove the card and reinstall it
(see page 66), and restart
the computer.
• If the problem still exists, install a
video card that you know works and
restart the computer.
• If the problem persists or the
computer has integrated video,
contact Dell (see page 83).
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.
No memory modules are detected.
• Reinstall all memory modules
(see page 68) and restart
the computer.
• To eliminate the possibility of a
faulty memory connector, remove
all memory modules (see page 68),
reinstall one memory module (if
the computer supports a single
module), and then restart the
computer. If the computer starts
normally, move the memory
module to a different connector
and restart the computer. Continue
until you have identified a faulty
connector or reinstalled all modules
without error.
Light Pattern Problem Description Suggested Resolution
= yellow
= green
= off
A B C D
A B C D
A B C D
A B C D