|
Light
Pattern
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Problem Descrip=
tion
|
Suggested Resol=
ution
|
|
![](3D"GX620DiagnosticLights_files/image001.jpg")
|
The computer is in a normal "off"
condition, or a possible pre-BIOS failure has occurred.=
The diagnostic lights are not lit after the
computer successfully boots to the operating system.
|
Plug the computer into a working electrical o=
utlet
and press the power button.
|
|
![](3D"GX620DiagnosticLights_files/image002.jpg")
|
A possible BIOS failure has occurred; the com=
puter
is in the recovery mode.
|
Run the BIOS Recovery utility, wait for recov=
ery
completion, and then restart the computer.
|
|
![](3D"GX620DiagnosticLights_files/image003.jpg")
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A possible processor failure has occurred.
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Reinstall the processor and restart the compu=
ter.
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|
![](3D"GX620DiagnosticLights_files/image004.jpg")
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Memory modules are detected, but a memory fai=
lure
has occurred.
|
- =
If you have one memory module installed,
reinstall it and restart the computer. (see
"Memory"
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 addition=
al
module. Continue until you have identified a faulty module or
reinstalled all modules without error.
- =
If available, install properly working m=
emory
of the same type into your computer.
- =
If the problem persists, contact
Dell.
|
|
![](3D"GX620DiagnosticLights_files/image005.jpg")
|
A possible graphics card failure has occurred=
.
|
- =
If the computer has a graphics card, rem=
ove
the card, reinstall it, and then restart the computer.
- =
If the problem still exists, install a g=
raphics
card that you know works and restart the computer.
- =
If the problem persists or the computer =
has
integrated graphics, contact
Dell.
|
|
![](3D"GX620DiagnosticLights_files/image006.jpg")
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A possible floppy or hard drive failure has
occurred.
|
Reseat all power and data cables and restart =
the
computer.
|
|
![](3D"GX620DiagnosticLights_files/image007.jpg")
|
A possible USB failure has occurred.
|
Reinstall all USB devices, check cable connec=
tions,
and then restart the computer.
|
|
![](3D"GX620DiagnosticLights_files/image008.jpg")
|
No memory modules are detected.
|
- =
If you have one memory module installed,
reinstall it and restart the computer. (see
"Memory"
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 addition=
al
module. Continue until you have identified a faulty module or
reinstalled all modules without error.
- =
If available, install properly working m=
emory
of the same type into your computer.
- =
If the problem persists, contact
Dell.
|
|
![](3D"GX620DiagnosticLights_files/image009.jpg")
|
Memory modules are detected, but a memory
configuration or compatibility error exists.
|
|
|
![](3D"GX620DiagnosticLights_files/image010.jpg")
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An other failure has occurred.
This pattern also displays during System
Setup and may not indicate a problem.
|
- =
Ensure that the cables are properly conn=
ected
to the system board from the hard drive, CD drive, and DVD drive.
- =
Check the computer message that appears =
on
your monitor screen.
- =
If the problem persists, contact
Dell.
|
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![](3D"GX620DiagnosticLights_files/image011.jpg")
|
After POST is complete, all four diagnostic l=
ights
turn green briefly before turning off to indicate normal operating condit=
ion.
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None.
|