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46 Advanced Troubleshooting
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Dell Diagnostics
If you experience a problem with your computer, perform the checks in "Solving Problems" on
page 23 and run the Dell Diagnostics before you contact Dell for technical assistance. Running the
Dell Diagnostics may help you resolve the problem without contacting Dell. If you do contact Dell,
the test results can provide important information for Dell's service and support personnel.
The Dell Diagnostics allows you to:
• Perform express, extended, or custom tests on one or all devices
• Select tests based on a symptom of the problem you are having
• Choose how many times a test is run
• Display test results
• Suspend testing if an error is detected
• Access online help information that describes the tests and devices
Memory modules are detected, but a
memory configuration or compatibility
error exists.
• Ensure that there are no special
memory module/memory
connector placement requirements
(see page 68).
• Verify that the memory modules
that you are installing are
compatible with your computer
(see page 68).
• If the problem persists, contact
Dell (see page 83).
Other failure has occurred.
• Ensure that the cables are properly
connected from the hard drive, CD
drive, and DVD drive to the system
board (see page 61).
• If the problem persists, contact
Dell (see page 83).
The computer is in a normal operating
condition after POST.
None.
Light Pattern Problem Description Suggested Resolution
= yellow
= green
= off
A B C D
A B C D
A B C D