Quick Reference Guide 41
A possible USB failure has
occurred.
Reinstall all USB devices, check cable connections, and
then restart the computer.
No memory modules are
detected.
1
Reseat the memory modules to ensu re that y our com puter
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 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 your
User’s Guide
for more
information.
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
.
No memory modules are
detected.
• If you have one memory module i nstalled, reinstall it and
restart the computer.
• If you have two or more memory module s 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.
System board failure has
occurred.
Contact Dell
for technical assistance
.
Light Pattern Problem Description Suggested Resolution
book.book Page 41 Tuesday, January 10, 2006 2:58 PM