Dell Dimension C7565 Owner's Manual page 45

Light Pattern Problem Description
No memory modules are detected.
Memory modules are detected, but a memory
configuration or compatibility error exists.
A possible expansion card failure has occurred.
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).
• Ensure that no special memory
module/memory connector placement
requirements exist (see page 63).
• Verify that the memory modules that you are
installing are compatible with your computer
(see page 63).
• If the problem persists, contact Dell (see
page 118).
1
Determine if a conflict exists by removing a
card (not a graphics card) (see page 70) and
restarting the computer.
2
If the problem persists, reinstall the card that
you removed, remove a different card, and
then restart the computer.
3
Repeat this process for each card. If the
computer starts normally, troubleshoot the
last card removed from the computer for
resource conflicts (see "Resolving Software
and Hardware Incompatibilities" on
page 49).
4
If the problem persists, contact Dell (see
page 118).
Troubleshooting Tools
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