Advanced Troubleshooting: Dell XPS 600 Service Manual
adtshoot.htm[4/10/2014 9:50:46 PM]
Diagnostic Lights
CAUTION:
Before you begin any of the procedures in this section, follow the safety instructions located in
the
Product Information Guide
.
To help you troubleshoot a problem, your computer has four lights labeled "1," "2," "3," and "4" on the front panel (see "
"). When the computer starts normally, the lights flash. After the computer starts, all four lights display solid
green. If the computer malfunctions, the color and sequence of the lights identify the problem.
Light Pattern
Problem Description Suggested Resolution
The computer is in a
normal "off" condition
or a possible pre-BIOS
failure has occurred.
The diagnostic lights
are not lit after the
system successfully
boots to the operating
system.
Plug the computer into a working electrical outlet. Also see "Power Problems"
located in your
Owner's Manual
.
A possible processor
failure has occurred.
Reinstall the processor (see "
") and restart the computer.
Memory modules are
detected, but a
memory failure has
occurred.
If you have two or more memory modules installed, remove the modules,
reinstall one module (see "
"), 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
").
If the problem persists, contact Dell.
A possible graphics
card failure has
occurred.
If the computer has a graphics card, remove the card, reinstall it, and
then restart the computer.
If the problem still exists, install a graphics card that you know works and
restart the computer.
If the problem persists, contact Dell.
A possible floppy drive
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.
If you have two or more memory modules installed, remove the modules,
reinstall one module (see "
"), 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
").
If the problem persists, see "Contacting Dell" in your
Owner's Manual
for
instructions on obtaining technical assistance.
Memory modules are
detected, but a
memory configuration
or compatibility error
exists.
Ensure that no special memory module/memory connector placement
requirements exist.
Verify that the memory modules that you are installing are compatible
").
If the problem persists, see "Contacting Dell" in your
Owner's Manual
for
instructions on obtaining technical assistance.
