Dell 533CX A B C D, = y e l l o w = g r e e n = o f f, C o d e s D u r i n g P O S T continued

w w w . d e l l . c o m s u p p o r t . d e l l . c o m

D i a g n o s t i c L i g h t	C o d e s D u r i n g P O S T (continued)
Light Pattern	Cause	Action
	Possible USB failure.	Disconnect all USB devices and cables, and
		restart the computer to retest. Then reconnect
A B C D		all USB devices and cables, and restart the
		computer to retest.
		If the problem is still not resolved, contact Dell
		for technical assistance.
	Possible system board resource and/or hardware	See "System Board Problems" and "Hardware
	failure.	Conflicts" in the User’s Guide.
A B C D
	Possible system board resource and/or hardware	See "System Board Problems" and "Hardware
	failure.	Conflicts" in the User’s Guide.
A B C D
	Possible expansion card failure or conflict.	See "System Board Problems" and "Hardware
		Conflicts" in the User’s Guide.
A B C D
	Possible system board resource and/or hardware	See "System Board Problems" and "Hardware
	failure.	Conflicts" in the User’s Guide.
A B C D
	Normal operating condition after POST.	No action is necessary.

A B C D

= y e l l o w

= g r e e n

= o f f

36

Setup and Quick Reference Guid e