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54 Troubleshooting Tools
A possible graphics card failure has
occurred.
• If the computer has a graphics card,
remove the card (see page 76), 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, contact Dell
(see page 126).
A possible floppy drive 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.
• If you have two or more memory
modules installed, remove the
modules, reinstall one module (see
page 74), 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 74).
• If the problem persists, contact Dell
(see page 126).
Memory modules are detected, but a
memory configuration or compatibility
error exists.
• Ensure that no special memory
module/memory connector placement
requirements exist (see page 72).
• Verify that the memory modules that
you are installing are compatible with
your computer (see page 72).
• If the problem persists, contact Dell
(see page 126
).
Light Pattern Problem Description Suggested Resolution