Dell 400 Determine if a conflict exists by, Restarting the computer see, Computer, Drive see

Light Pattern	Problem Description	Suggested Resolution
	A possible expansion card failure has	1	Determine if a conflict exists by
	occurred.		removing a card (not a graphics card)
			and restarting the computer (see
			page 76).
		2	If the problem persists, reinstall the
			card that you removed, remove a
			different card, and then restart the
			computer.
		3	Repeat this process for each card. If the
			computer starts normally, troubleshoot
			the last card removed from the
			computer for resource conflicts (see
			page 59).
		4	If the problem persists, contact Dell
			(see page 128).
	Another failure has occurred.	• Ensure that the cables are properly
			connected to the system board from
			the hard drive, CD drive, and DVD
			drive (see page 71).
		• If there is an error message on your
			screen identifying a problem with a
			device (such as the floppy drive or hard
			drive), check the device to ensure that
			it is functioning properly.
		• The operating system is attempting to
			boot from a device (such as the floppy
			drive or hard drive); check system
			setup (see page 115) to make sure the
			boot sequence is correct for the devices
			installed on your computer.
		• If the problem persists, contact Dell
			(see page 128).
	All four diagnostic lights display solid	None.
	green and then turn off after the system

successfully boots to the operating system.

Troubleshooting Tools

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