Compaq AP500 manual 4Diagnostic Tools, Post Messages, Message Beeps Probable Cause

4-4Diagnostic Tools

POST Messages Continued

Message	Beeps*	Probable Cause
206-Secondary cache	None	Cache memory controller or
controller failure		RAM failure
207-ECC Corrected Single	2S	A memory error on one of the
Bit Errors in DIMM Pair(s)		installed DIMMs has been
		detected and corrected with the
		system’s ECC logic. The
		workstation will continue to
		operate correctly with this error.

Recommended Action

Run the Computer Checkup and Diagnostics utilities.

Run Diagnostics to get more information.

210-Invalid Memory	None	Too much memory installed in	Remove DIMM from socket.
Configuration Detected.		system
Maximum of 1 Gbytes of
Memory Supported. System
Halted
212-Failed Processor	1L	Failed processor (X is 0 or 1)	Replace the processor and/or the
			Processor Power Module.
301-Keyboard Error	None	Keyboard failure	Verify that you do not have a key stuck
			or something on the keyboard.
			Ensure that the keyboard is plugged in.
			Replace the keyboard.
303-Keyboard Controller	None	I/O keyboard controller	1. Reconnect keyboard with computer
Error				turned off.
			2.	Replace the system board.
304-Keyboard or System	None	Keyboard failure	1.	Replace the keyboard.
Unit Error			2.	Replace the system board.
40X-Parallel Port X Address	2S	Both external and internal ports	Run Computer Setup or Windows NT
Assignment Conflict		are assigned to parallel port X.	utilities.
402-Monochrome Adapter	1L, 2S	Monochrome display controller	Replace the monochrome display
Failure			controller.
404-Parallel Port Address	2S	Both external and internal ports	Run Computer Setup or Windows NT
Conflict Detected		are assigned to parallel port X.	utilities.
501-Display Adapter Failure	1L, 2S	Graphics display controller	Replace the graphics controller.
601-Diskette Controller Error	None	Diskette controller circuitry	1.	Run Computer Setup.
			2.	Check and/or replace cables.
			3.	Replace diskette drive.
			4.	Replace the system board.

Continued