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

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" (see page 70). 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 on page 12.

Light Pattern

Problem

Suggested Resolution

 

 

 

 

Description

 

 

 

 

 

 

 

Y

Y

G

G

Memory modules are

• If you have one memory module installed,

 

 

 

 

detected, but a

reinstall it (see page 83) and restart the

 

 

 

 

memory failure has

computer.

A

B

C

D

occurred.

• If you have two or more memory modules

 

installed, remove the modules, reinstall one

 

 

 

 

 

 

 

 

 

 

module (see page 83), and then restart the

 

 

 

 

 

computer. If the computer starts normally,

 

 

 

 

 

reinstall an additional module. Continue

 

 

 

 

 

until you have identified a faulty connector

 

 

 

 

 

or reinstalled all modules without error.

 

 

 

 

 

• If available, install properly working memory

 

 

 

 

 

of the same type into your computer (see

 

 

 

 

 

page 83).

 

 

 

 

 

• If the problem persists, contact Dell (see

 

 

 

 

 

page 100).

 

 

 

 

 

 

G

Y

G

Y

Memory modules are

• Ensure that there are no special memory

 

 

 

 

detected, but a

module/memory connector placement

 

 

 

 

memory

requirements (see page 83).

A

B

C

D

configuration or

• Verify that the memory modules that you are

compatibility error

installing are compatible with your computer

 

 

 

 

 

 

 

 

exists.

(see page 93).

• If the problem persists, contact Dell (see page 100).

54

Advanced Troubleshooting

Page 54
Image 54
Dell 2350 manual Diagnostic Lights, Light Pattern Problem Suggested Resolution Description