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32 Quick Reference Guide
www.dell.com | support.dell.com
yellow
yellow
green
green
Memory modules are detected, but a
memory failure has occurred.
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
(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.
Light Pattern Problem Description Suggested Resolution
= yellow
= green
= off
ABCD