Dell H7228 If the computer has a video card, Remove the card and reinstall it, Contact Dell see

Light Pattern	Problem Description	Suggested Resolution
	A possible video card failure	• If the computer has a video card,
	has occurred.	remove the card and reinstall it
A B C D		(see page 66), 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 83).
	A possible floppy or hard drive failure	Reseat all power and data cables and
	has occurred.	restart the computer.

A B C D

A possible USB failure has occurred.

A B C D

No memory modules are detected.

A B C D

Reinstall all USB devices, check cable connections, and then restart

the computer.

•Reinstall all memory modules (see page 68) and restart the computer.

•To eliminate the possibility of a faulty memory connector, remove all memory modules (see page 68), 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.

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Advanced Troubleshooting

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