44 Troubleshooting Tools
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A possible graphics card failure
has occurred.
• If the computer has a graphics card,
remove the card, reinstall it (see page72),
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
page118
).
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.
• If you have two or more memory modules
installed, remove the modules, reinstall
one module (see page65), 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 page65).
• If the problem persists, contact Dell (see
page118
).
Memory modules are detected,
but a memory configuration or
compatibility error exists.
• Ensure that no special memory
module/memory connector placement
requirements exist (see page63).
• Verify that the memory modules that you
are installing are compatible with your
computer (see page63).
• If the problem persists, contact Dell (see
page118
).
Light Pattern Problem Description Suggested Resolution