Dell Precision 350 User Manual download pdf (Page 8)

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Advanced Troubleshooting

DellPrecision™Workstation350User'sGuide

Diagnostic Lights

Beep Codes

Dell Diagnostics

Drivers

Using System Restore

Resolving Software and Hardware Incompatibilities

Diagnostic Lights

To help you troubleshoot a problem, your computer is equipped with four lights on the back panel labeled "A," "B," "C," and "D". These lights can be yellow or

green. When the computer starts normally, the lights flash. After the computer starts, the lights remain green. If the computer malfunctions, the color and

sequence of the lights identify the problem.

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the System Information Guide.



Light Pattern



Problem Description



Suggested Resolution

Normal off condition or possible power

failure.

Verify that the computer power cable is plugged into the computer and a working electrical

outlet. Press the power button.

Possible BIOS failure; the computer is in

the recovery mode.

Run the BIOS Recovery utility, wait for recovery completion, and then restart the computer.

Possible microprocessor failure.

Reinstall the microprocessor, and restart the computer.

Memory modules are detected, but a

memory failure has occurred.

Remove and reinstall all memory modules and CRIMMs. Ensure that all the connector tabs

are locked. Restart the computer.

Install the memory modules in memory connectors RIMM 1 (located closest to the

microprocessor) and RIMM 2 and ensure that, if no additional memory is used, CRIMMs are

installed in memory connectors RIMM 3 and RIMM 4.

If you installed memory modules in memory connectors RIMM3 and RIMM4 that were not

purchased from Dell, remove the modules and replace them with the CRIMMs that were

originally installed in your computer.

If available, install Dell memory of the same type into your computer.

If the problem persists, contact Dell.

Possible expansion card failure.

1. Determine if a conflict exists by removing a card (not the video card) and then

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").

4. If the problem persists, contact Dell.

Possible video card failure or bad on-

board video.

If the computer has a video card, remove the card and reinstall it.

If the problem persists or the computer has integrated video, contact Dell.

Possible floppy or hard drive failure.

Check all power and data cable connections, and then restart the computer.

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Dell Precision 350 User Manual Page 8

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