Dell DMC, MTC2 See page 62, and restart, Computer, If the problem persists or, Contact Dell see

Light Pattern	Problem Description	Suggested Resolution
	A possible video card failure has	• If the computer has a video card,
	occurred.	remove the card and reinstall it
A B C D		(see page 62), and restart the
		computer.
		• If the problem still exists, install
		a video card that you know works
		and restart the computer.
		• If the problem persists or the
		computer has integrated video,
		contact Dell (see page 90).
	A possible floppy or hard drive failure	Reseat all power and data cables
	has occurred.	and restart the computer.
A B C D
	A possible USB failure has occurred.	Reinstall all USB devices, check
		cable connections, and then restart
		the computer.

A B C D

No memory modules are detected.

•Reinstall all memory modules (see page 75) and restart the computer.

A B C D	• To eliminate the possibility of a
	faulty memory connector, remove
	all memory modules (see
	page 75), reinstall one memory
	module (if the computer
	supports a single module), and
	then restart the computer. If the
	computer starts normally, move
	the memory module to a
	different connector and restart
	the computer. Continue until
	you have identified a faulty
	connector or reinstalled all
	modules without error.
= yellow
= green
= off

Advanced Troubleshooting

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