Dell Precision 470 Quick Reference Guide - Page 34

Run the Dell Diagnostics., Quick Reference Guide, If necessary, the computer can - not boot b light on

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www.dell.com | support.dell.com Light Pattern ABCD green yellow yellow yellow = yellow = green = off Problem Description No memory modules are detected. Suggested Resolution 1 Reseat the memory modules to ensure that your computer is successfully communicating with the memory. 2 Restart the computer. 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 to boot to the operating system. 6 Run the Dell Diagnostics. 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. 34 Quick Reference Guide

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34
Quick Reference Guide
www.dell.com | support.dell.com
green
yellow
yellow
yellow
No memory modules are detected.
1
Reseat the memory modules
to
ensure that your computer is
successfully communicating with
the memory.
2
Restart the computer.
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.
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.
Light Pattern
Problem Description
Suggested Resolution
= yellow
= green
= off
A
B
C
D