w w w . d e l l . c o m s u p p o r t . d e l l . c o m

Light Pattern

Problem Description

Suggested Resolution

 

 

 

 

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.

 

 

 

 

Memory modules are detected, but a

• Ensure that no special memory

 

memory configuration or compatibility

module/memory connector placement

 

error exists.

requirements exist.

 

 

• Verify that the memory modules that

 

 

you are installing are compatible with

 

 

your computer.

 

 

• If the problem persists, contact Dell. For

 

 

information on contacting Dell, see your

 

 

online User’s Guide.

 

 

 

 

A failure has occurred.

• Ensure that the cables are properly

 

 

connected to the system board from the

 

This pattern also displays when you enter

hard drive, CD drive, and DVD drive.

 

• Check the computer message that

 

system setup and may not indicate a

appears on your monitor screen.

 

problem.

 

• If the problem persists, contact Dell. For

 

 

 

 

information on contacting Dell, see your

 

 

online User’s Guide.

 

 

 

 

After POST is complete, all four

None.

 

diagnostic lights turn green briefly before

 

 

turning off to indicate normal operating

 

 

condition.

 

 

 

 

34Quick Reference Guide