IBM X24 manual Error messages, ThinkPad X20, X21, X22, X23

02F4	1.	Load Setup Defaults in
EISA CMOS not writable.		IBM BIOS Setup
		Utility.Replace the backup
		battery.
	2.	System board.
02F5	1.	DIMM.
DIMM test failure	2.	System board.
02F6	1.	DIMM.
Software NMI failure	2.	System board.
02F7	1.	DIMM.
Fail-safe timer NMI failure	2.	System board.

Error messages

Symptom or error	FRU or action, in sequence
Device address conflict	1.	Load Setup Defaults in
		IBM BIOS Setup Utility.
	2.	Backup battery.
	3.	System board.
Allocation error for device	1.	Load Setup Defaults in
		IBM BIOS Setup Utility.
	2.	Backup battery.
	3.	System board.
Failing bits: nnnn	1.	DIMM.
	2.	System board.
Invalid system configuration	1.	DIMM.
data
	2.	System board.
I/O device IRQ conflict	1.	Load Setup Defaults in
		IBM BIOS Setup Utility.
	2.	Backup battery.
	3.	System board.
Operating system not found	1.	Enter IBM BIOS Setup
		Utility and see whether
		the hard disk drive and
		the diskette drive are
		properly identified.
	2.	Diskette drive.
	3.	Hard disk drive.
	4.	System board.

50ThinkPad X20, X21, X22, X23, X24