NEC VX manual Post Error Messages

POST Error Messages

The NEC Versa VX has a built-in checking program that automatically tests its components when you turn the system power on. This diagnostic test is called the Power-On Self-Test (POST). If the system finds a problem during POST, the system displays an error message. If this happens, follow the instructions in the POST error message table.

	POST Error Messages
Error Message	Explanation
Diskette drive A error	Drive A: is present but fails the BIOS POST diskette tests. Check
	to see that the drive is defined with the proper diskette type in
	Setup.
Extended RAM Failed at offset:	Extended memory not working or not configured properly at offset
nnnn	nnnn.
Failing Bits: nnnn	The hex number nnnn is a map of the bits at the RAM address (in
	System, Extended, or Shadow memory) which failed the memory
	test. Each 1 (one) in the map indicates a failed bit.

Fixed Disk 0/1/Disk Controller Failure

Incorrect Drive A type – run

SETUP

Keyboard Controller error

Keyboard Error – Keyboard not working

Operating system not found

Fixed disk is not working or not configured properly. Check to see if fixed disk is attached properly. Run Setup to make sure the fixed-disk type is correctly identified.

Type of floppy drive A: not correctly identified in Setup.

The keyboard controller failed test. You may have to replace keyboard or controller.

Keyboard error nn BIOS discovered a stuck key and displays the scan code nn for the stuck key.

Operating system cannot be located on either drive A: or drive C:.

Enter Setup and see if fixed disk and drive A: are properly identified.

Parity Check 1 – Parity error found in the system bus

Parity Check 2 – Parity error found in the I/O bus

BIOS attempts to locate the address and display it on the screen. If it cannot locate the address, it displays ????.

BIOS attempts to locate the address and display it on the screen. If it cannot locate the address, it displays ????.

10-4 Solving System Problems