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Advanced Troubleshooting 51
No memory modules are detected.
• If you have two or more memory modules
installed, remove the modules, reinstall one
module (see page 73), 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 73).
• If the problem persists, contact Dell (see
page 123).
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 73).
• Verify that the memory modules that you are
installing are compatible with your computer
(see page 73).
• If the problem persists, contact Dell (see
page 123).
A possible expansion card failure has occurred. 1
Determine if a conflict exists by removing a
card (not a graphics card) (see page 81) 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 58).
4
If the problem persists, contact Dell (see
page 123).
Light Pattern Problem Description Suggested Resolution
= yellow
= green
= off
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