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A possible graphics card failure
has occurred.
• If the computer has a graphics card,
remove the card, reinstall it (see "PCI
Express Cards" on page 76), 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
"Contacting Dell
" on page 122).
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 "Installing Memory" on
page 68), 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 "Installing Memory" on
page 68).
• If the problem persists, contact Dell (see
"Contacting Dell
" on page 122).
Memory modules are detected,
but a memory configuration or
compatibility error exists.
• Ensure that no special memory
module/memory connector placement
requirements exist (see "Memory
Installation Guidelines" on page 66).
• Verify that the memory modules that you
are installing are compatible with your
computer (see "Memory Installation
Guidelines" on page 66).
• If the problem persists, contact Dell (see
"Contacting Dell
" on page 122).
Light Pattern Problem Description Suggested Resolution
book.book Page 50 Monday, July 23, 2007 3:47 PM