IBM A22 manual Solving computer problems

Solving computer problems

Message	Solution
02F5: DMA test failed	Have the computer serviced.
02F6: Software NMI	Have the computer serviced.
failed
02F7: Fail-safe timer NMI	Have the computer serviced.
failed
The power-on password	A power-on password or a supervisor password is set. Type the password
prompt	and press Enter to use the computer. If the power-on password is not
	accepted, a supervisor password might have been set. Type the supervisor
	password and press Enter. If you still see the same error message, have the
	computer serviced.
The hard disk password	A hard disk password is set. Type the password and press Enter to use the
prompt	computer.
	If you still see the same error message, have the computer serviced.
The DOS full-screen	If you use a DOS application that supports only 640x480 resolution (VGA
looks smaller.	mode), the screen image might look slightly distorted or might appear
	smaller than the display size. This is to maintain compatibility with other
	DOS applications. To expand the screen image to the same size as the actual
	screen, start the ThinkPad Configuration Program and click LCD; then select
	the Screen expansion function. (The image might still look slightly
	distorted.)
	Note: If your computer has screen expansion function, you can use the
	Fn+F8 keys to expand the screen image.
Hibernation error	The system configuration changed between the time your computer entered
	hibernation mode and the time it left this mode, and your computer cannot
	resume normal operation.
	v Restore the system configuration to what it was before your computer
	entered hibernation mode.
	v If the memory size has been changed, re-create the hibernation file.
Operating system not	Verify the following:
found.	v The hard disk drive is correctly installed.
	v A startable diskette is in the diskette drive
	If you still see the same error message, check the boot sequence, using IBM
	BIOS Setup Utility.
Fan error	The cooling fan is failing. Have the computer serviced.

Chapter 2. Solving computer problems 15