Dell Precision T3400 (Late 2007): Light Pattern Problem Description Suggested Resolution

Light Pattern Problem Description Suggested Resolution: Dell Precision T3400 (Late 2007)

Table of contents

Light Pattern Problem Description Suggested Resolution

Memory modules are

• If two or more memory modules are

detected, but a

installed, remove the modules (see

memory failure has

"Removing a Memory Module" in your

occurred.

User’s Guide

), then reinstall one

module (see "Installing a Memory

Module" in your

User’s Guide

) and

restart the computer. If the computer

starts normally, continue to install

additional memory modules (one at a

time) until you have identified a

faulty module or reinstalled all

modules without error.

• If available, install working memory of

the same type into your computer (see

"Memory" in your

User’s Guide

).

• If the problem persists, contact Dell

(see "Contacting Dell" in your

User’s

Guide

).

A possible graphics

• Reseat any installed graphics cards

card failure has

(see "Cards" in your

User’s Guide

).

occurred.

• If available, install a working graphics

card into your computer.

• If the problem persists, contact Dell

(see "Contacting Dell" in your

User’s

Guide

).

A possible floppy or

• Reseat all power and data cables and

hard drive failure has

restart the computer.

occurred.

• If the problem persists, contact Dell

(see "Contacting Dell" in your

User’s

Guide

).

A possible USB failure

• Reinstall all USB devices, check cable

has occurred.

connections, and then restart the

computer.

• If the problem persists, contact Dell

(see

"Contacting Dell" in your User’s

Guide

).

34 Quick Reference Guide