Dell U3525 manual Problem Description Suggested Resolution, Restart the computer. For more

Light Pattern			Problem Description	Suggested Resolution
			A possible graphics card failure has	• If the computer has a graphics card,
			occurred.	remove the card, reinstall it, and then
A	B	C	D	restart the computer. For more
				information on reinstalling the
				graphics card, see your User’s Guide.
				• If the problem still exists, install a
				graphics card that you know works and
				restart the computer.
				• If the problem persists or the
				computer has integrated graphics,
				contact Dell. For more information on
				contacting Dell, see your User’s Guide.
			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.	Reinstall all USB devices, check cable
				connections, and then restart the
				computer.

A B C D

= yellow = green = off

Quick Reference Guide

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