Light Pattern

Problem Description

Suggested Resolution

 

 

 

 

A possible graphics card failure has occurred.

• If the computer has a graphics card,

 

 

remove the card, reinstall it, 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.

 

 

For information on contacting Dell, see

 

 

your online User’s Guide.

 

 

 

 

A possible floppy or hard drive failure has

Reseat all power and data cables and

 

occurred.

restart the computer.

 

 

 

 

A possible USB failure has occurred.

Reinstall all USB devices, check cable

 

 

connections, and then restart the

 

 

computer.

No memory modules are detected.

If you have one memory module installed, reinstall it and restart the computer. For information on reinstalling memory modules, see your online User’s Guide.

If you have two or more memory modules installed, remove the modules, reinstall one module, 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.

If the problem persists, contact Dell. For information on contacting Dell, see your online User’s Guide.

26

Quick Reference Guide

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Dell TJ021, 745c manual If the computer has a graphics card, Restart the computer, If the problem still exists, install a