From left to right: A B C D<\/p>\n
No lights: The computer is in a normal off condition or a possible
\npre-BIOS failure has occurred.
\nVerify that the computer is plugged into a working electrical outlet and
\nthat you have pressed the power button
\n<\/p>\n
From left to right: A B C D<\/p>\n
No lights: The computer is in a normal off condition or a possible
\npre-BIOS failure has occurred.
\nVerify that the computer is plugged into a working electrical outlet and
\nthat you have pressed the power button<\/p>\n
A and B yellow: Memory modules are detected, but a memory failure has
\noccurred.
\nIf you have one memory module installed, reinstall it and restart the
\ncomputer.
\nIf you have two or more memory modules installed, remove the modules,
\nreinstall one module, and then restart the computer. If the computer
\nstarts normally, reinstall an additional module. Continue until you have
\nidentified a faulty module or reinstalled all modules without error.
\nIf available, install properly working memory of the same type into your
\ncomputer.
\nIf the problem persists, see “Contacting Dell” in your Owner’s Manual
\nfor instructions on obtaining technical assistance.<\/p>\n
A C and D yellow: A possible expansion card failure has occurred.
\nDetermine if a conflict exists by removing a card (not the video card)
\nand then restarting the computer.
\nIf the problem persists, reinstall the card that you removed, remove a
\ndifferent card, and then restart the computer.
\nRepeat this process for each card. If the computer starts normally,
\ntroubleshoot the last card removed from the computer for resource
\nconflicts (see “Resolving Software and Hardware Incompatibilities” in
\nthe Owner’s Manual).
\nIf the problem persists, see “Contacting Dell” in your Owner’s Manual
\nfor instructions on obtaining technical assistance.<\/p>\n
A and C yellow: A possible video card failure has occurred.
\nIf the computer has a video card, remove the card and reinstall it, and
\nrestart the computer.
\nIf the problem still exists, install a video card that you know works
\nand restart the computer.
\nIf the problem persists or the computer has integrated video, see
\n“Contacting Dell” in your Owner’s Manual.<\/p>\n
A and D yellow: A possible floppy or hard drive failure has occurred.
\nReseat all power and data cables and restart the computer.<\/p>\n
A is yellow: A possible USB failure has occurred.
\nReinstall all USB devices, check cable connections, and then restart the
\ncomputer.<\/p>\n
\nB C D yellow: No memory modules are detected.
\nReinstall all memory modules and restart the computer.
\nTo eliminate the possibility of a faulty memory connector, remove all
\nmemory modules, reinstall one memory module (if the computer supports a
\nsingle module), and then restart the computer. If the computer starts
\nnormally, move the memory module to a different connector and restart
\nthe computer. Continue until you have identified a faulty connector or
\nreinstalled all modules without error.<\/p>\n
B and D yellow: Memory modules are detected, but a memory configuration
\nor compatibility error exists.
\nEnsure that there are no special memory module\/memory connector
\nplacement requirements.
\nVerify that the memory modules that you are installing are compatible
\nwith your computer.
\nIf the problem persists, see “Contacting Dell” in your Owner’s Manual
\nfor instructions on obtaining technical assistance.<\/p>\n
C and D yellow; A possible expansion card failure has occurred.
\nDetermine if a conflict exists by removing a card and then restarting
\nthe computer.
\nIf the problem persists, reinstall the cards that you removed, remove a
\ndifferent card, and then restart the computer.
\nRepeat this process for each card. If the computer starts normally,
\ntroubleshoot the last card removed from the computer for resource
\nconflicts (see “Resolving Software and Hardware Incompatibilities” in
\nyour Owner’s Manual).
\nIf the problem persists, see “Contacting Dell” in your Owner’s Manual
\nfor instructions on obtaining technical assistance.<\/p>\n
D is yellow: Other failure has occurred.
\nEnsure that the cables are properly connected from the hard drive, CD
\ndrive, and DVD drive to the system board.
\nIf the problem persists, see “Contacting Dell” in your Owner’s Manual
\nfor instructions on obtaining technical assistance.<\/p>\n
All green: The computer is in a normal operating condition after POST.
\nNone.<\/p>\n","protected":false},"excerpt":{"rendered":"
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