Dell Dimension C7565 Owner's Manual page 44

Light Pattern Problem Description
Memory modules are detected, but a memory
failure has occurred.
A possible graphics card failure has occurred.
A possible floppy or hard drive failure has
occurred.
A possible USB failure has occurred.
44
Troubleshooting Tools
Suggested Resolution
• If you have two or more memory modules
installed, remove the modules, reinstall one
module (see page 63), 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 63).
• If the problem persists, contact Dell (see
page 118).
• If the computer has a graphics card, remove
the card, reinstall it (see page 70), 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 118).
Reseat all power and data cables and restart
the computer.
• If the problem persists, contact Dell (see
page 118).
Reinstall all USB devices, check cable
connections, and then restart the computer.
• If the problem persists, contact Dell (see
page 118).