Compaq AP200 manual Keyboard Error None Keyboard failure, Computer turned off, Keyboard None

E-5

Power-On Self Test Message		Continued
Message	Beeps*	Probable Cause	Recommended Action
301-Keyboard Error	None	Keyboard failure	Reconnect keyboard with
			computer turned off.
303-Keyboard	None	I/O board keyboard controller	1.	Replace the
				keyboard.
Controller Error
			2.	Replace the system
				board.
304-Keyboard or	None	Keyboard failure	1.	Reconnect the
				keyboard with
System Unit Error
				computer turned
				off.
			2.	Replace the
				keyboard.
			3.	Replace the system
				board.
402-Monochrome	1L, 2S	Monochrome display controller	Replace the monochrome
Adapter Failure		is defective.	display controller.
404-Parallel Port	2S	Both external and internal ports	Run Computer Setup or
Address Conflict		are assigned to parallel port X.	Windows NT utilities.
Detected
501-Display Adapter	1L, 2S	Video display controller	Replace the graphics
Failure			board.

* L = Long, S = Short

Continued

Compaq Professional Workstation AP200 Reference Guide

Writer: M. Church Project: Compaq Professional Workstation AP200 Reference Guide Comments: 352620-003

File Name: L-APPE.DOC Last Saved On: 12/14/98 2:40 PM

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