Dell OptiPlex 330 Quick Reference Manual page 59

Light Pattern Problem Description
No memory modules are
detected.
Memory modules are detected,
but a memory configuration or
compatibility error exists.
Suggested Resolution
• If you have one memory
module installed, reinstall it
and restart the computer.
See the online User's Guide
for instructions on how to
remove and install memory
modules.
• If you have two or more
memory modules installed,
remove the modules,
reinstall one module, and
then restart the computer. If
the computer starts
normally, reinstall an
additional module.
Continue until you have
identified a faulty module or
reinstalled all modules
without error.
• If available, install properly
working memory of the same
type into your computer.
• If the problem persists,
contact Dell.
• Ensure that no special
memory module/memory
connector placement
requirements exist.
• Verify that the memory
modules that you are
installing are compatible
with your computer.
• If the problem persists,
Contact Dell.
Quick Reference Guide
59