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126 Troubleshooting Tools
No memory modules are
detected.
1
Reseat the memory
modules to ensure that
your computer is
successfully
communicating with the
memory (see "Memory"
on page 187).
2
Restart the computer.
3
If the problem still exists,
remove all the memory
modules and install one
memory module in
memory module
connector DIMM_1.
4
Restart the computer.
A message appears stating
that because your memory
is not paired, the system
will operate with reduced
performance and reduced
error-correction capability.
5
Press <F1> to boot to
the operating system.
6
Run the Dell Diagnostics
(see "Dell Diagnostics
"
on page 136
)
.
7
If the memory module
passes, shut down the
computer (see "Turning
Off Your Computer" on
page 151), 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.
Light Pattern Problem Description Suggested Resolution