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50 Advanced Troubleshooting
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Memory modules are detected, but a memory
failure has occurred.
• If you have two or more memory modules
installed, remove the modules, reinstall one
module (see page 73), and then restart the
computer. If the computer starts normally,
reinstall an additional module. Continue
until you have identified a faulty module or
reinstalled all modules without error.
• If available, install properly working memory
of the same type into your computer (see
page 73).
• If the problem persists, contact Dell (see
page 123).
A possible graphics card failure has occurred.
• If the computer has a graphics card, remove
the card, reinstall it (see page 81), 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 (see
page 123).
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
ABCD
ABCD
ABCD
ABCD