IBM A21e manual Solving computer problems, Message, Cause and action

	Solving computer problems
Message	Cause and action
1801: Attached docking	The computer is attached to a docking station that is not supported by
station is not supported	ThinkPad A21e. Shut down the system and detach it from the docking
– shut down computer	station.
and remove from
docking station
The power-on password	A power-on password or a supervisor password is set. Type the password
prompt appears.	and press Enter to use the computer. If the power-on password is not
	accepted, a supervisor password may 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. To use the computer, type the password and
prompt appears.	press Enter. 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 may look slightly distorted or may 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 may 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 the
	BIOS Setup Utility.
Fan error	The cooling fan is failing. Have the computer serviced.
EMM386 Not Installed—	Edit C:\CONFIG.SYS and change a line from
Unable to SET Page	device=C:\WINDOWS\EMM386.EXE RAM
Frame Base Address
	to
	device=C:\WINDOWS\EMM386.EXE NOEMS
	and save this file.

Chapter 2. Solving computer problems 13