Dell Precision Workstation 650, User Manual

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Solving Problems
205
Microprocessor Problems
CAUTION: Before you begin any of the procedures in this section, follow the
safety instructions in the
System Information Guide
.
Fill out the Diagnostics Checklist as you complete these checks.
I
F Y O U RE C E I VE A N IN S U F F I C IE N T M E MO R Y M ES S A GE
—
1
Save and close any open files and exit any open programs you are not using to
see if that resolves the problem.
2
Confirm that the computer has sufficient memory to run your programs. See
the software documentation for minimum memory requirements. If necessary,
install additional memory.
3
Reseat the memory modules to ensure that your computer is successfully
communicating with the memory.
4
Restart the computer.
5
Run the Dell Diagnostics. If any of the diagnostics tests fail, see "Contacting
Dell".
I
F Y O U EX P ER I E NC E O T H E R M EM O R Y P RO B L EM S
—
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 memory module connector 4.
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 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, see "Contacting Dell" for a
replacement.
NOTE: If necessary, the computer can operate in debug mode until new memory
modules are installed.