Planar C3012T, C3013T user manual Error Message Explanation, Post

Error Message	Explanation
Gate A20 Error	Gate A20 on the keyboard controller is not
	working. Call for service.
Invalid Boot Diskette	The BIOS can read the disk in floppy drive A,
	but cannot boot the system. Use another boot
	disk.
Keyboard Controller Error	The keyboard controller has failed during
	POST.
Keyboard is Locked ...	Some systems have an electronic key that
Please Unlock It	enables the user to lock the keyboard.
Keyboard Stuck Key Detected	There is a key pressed down.
Master DMA Controller Error	Error in the master DMA channel.
Master Interrupt Controller Error	Master Interrupt Controller failed during
	POST.
Memory Size Decreased	The amount of memory on the Clean Screen is
	less than the amount in CMOS RAM.
	Run Setup.
Off Board Parity Error	Parity error in memory installed in an expan-
	sion slot. The format is:
	OFF BOARD PARITY ERROR ADDR
	(HEX) = (XXXX)
	XXXX is the hex address where the error
	occurred.
Slave DMA Controller Error	Error in the slave DMA channel.
Slave Interrupt Controller	Slave Interrupt Controller failed during POST.
System Memory Size Mismatch	The amount of memory on the Clean Screen is
	different than the amount in CMOS RAM.
	Run Setup.
Timer Channel 2 Error	Most systems include two timers. There is an
	error in timer 2.

44Planar Clean Screen PC User’s Manual