Dell Precision 390 User Manual
Page 126
NOTE:
If the problem persists, contact Dell (see
Contacting Dell
).
A possible graphics card failure has
occurred.
1.
If the computer has a graphics card, remove the card, reinstall it, and then restart the
computer.
2.
If the problem still exists, install a graphics card that you know works and restart the
computer.
3.
If the problem persists or the computer has integrated graphics, contact Dell (see
Contacting Dell
).
A possible floppy or hard drive failure has
occurred.
Reseat all power and data cables and restart the computer.
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 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.
7.
If the memory module passes, shut down the computer (see
Turn Off Your 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 (see
Contacting Dell
) for a
replacement.
NOTE:
If necessary, the computer can operate in debug mode until new memory modules are
installed.
No memory modules are detected.
l
If you have one memory module installed, reinstall it and restart the computer.
l
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.
l
If available, install properly working memory (see
Memory
) of the same type into your
computer.
l
If the problem persists, contact Dell (see
Contacting Dell
).
System board failure has occurred.
Contact Dell (see
Contacting Dell
) for technical assistance.
Memory modules are detected, but a
memory configuration or compatibility
error exists.
l
Ensure that no special memory module/memory connector placement requirements exist
(see
Memory
).
l
Verify that the memory modules that you are installing are compatible with your
computer.
l
Reinstall the memory modules and restart the computer.
l
If the problem persists, contact Dell (see
Contacting Dell
).
A possible system board resource and/or
hardware failure has occurred.
Resolving Software and Hardware Incompatibilities
.
If the problem persists, contact Dell (see
Contacting Dell
).
A possible expansion card failure has
occurred.
1.
Determine if a conflict exists by removing a card (not a graphics card) and restarting the
computer.
2.
If the problem persists, reinstall the card that you removed, remove a different card,
and then restart the computer.
3.
Repeat this process for each card. If the computer starts normally, troubleshoot the last
card removed from the computer for resource conflicts (see
4.
If the problem persists, contact Dell (see
Contacting Dell
).
Another failure has occurred.
l
Ensure that the cables are properly connected to the system board from the hard drive,
CD drive, and DVD drive.
l
If the problem persists, contact Dell (see
Contacting Dell
).
The computer is in a normal operating
condition after POST.
NOTE:
After a short time, the diagnostic
lights turn off after the computer
successfully boots to the operating
system.
None.