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

 

 

 

 

 

 

yellow

Memory modules are detected, but a

1

Reseat the memory modules to ensure

 

yellow

memory failure has occurred.

 

that your computer is successfully

 

 

 

communicating with the memory.

A B C D

green

 

 

 

2

Restart the computer.

 

 

 

 

green

 

3

If the problem still exists, remove all

 

 

 

 

 

 

 

the memory modules and install

 

 

 

 

one memory module in

 

 

 

 

connector DIMM_1.

 

 

 

4

Restart the computer.

 

 

 

 

The following message appears:

 

 

 

 

Alert! Operating in Debug

 

 

 

 

Mode. Please Populate

 

 

 

 

Memory in Pairs for

 

 

 

 

Normal Operation.

 

 

 

5

Press <F1> to boot to the

 

 

 

 

operating system.

 

 

 

6

Run the Dell Diagnostics

 

 

 

 

(see page 26).

 

 

 

7

If the memory module passes, shut

 

 

 

 

down the computer, remove the

 

 

 

 

memory module, and then repeat the

 

 

 

 

process with the remaining memory

 

 

 

 

modules until a memory error occurs

 

 

 

 

during start-up or diagnostic testing.

 

 

 

 

If the first memory module tested is

 

 

 

 

defective, repeat the process with the

 

 

 

 

remaining modules to ensure that the

 

 

 

 

remaining modules are not defective.

 

 

 

8

When the defective memory module

 

 

 

 

is identified, contact Dell for

 

 

 

 

a replacement.

NOTE: If necessary, the computer can operate in debug mode until new memory modules are installed.

= yellow = green = off

32

Quick Reference Guide

Page 32
Image 32
Dell WHM, X3155 That your computer is successfully, Communicating with the memory, Restart the computer, One memory module