Lenovo T40 manual Errors without messages, Problem, Solution, Solving computer problems

Solving computer problems

Message	Solution
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 has failed. 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.
CardBus Configuration	Go to the BIOS Setup Utility. Press F9 and then Enter to load the default
Error - Device Disabled	setting.
	Press F10 and then Enter to restart the system.
Thermal sensing error	The thermal sensor is not functioning correctly. Have the computer serviced.
Authentification of	The IBM Predesktop Area in the HDD is broken. To use the IBM Predesktop
system services failed.	Area, get a Recovery CD, then recover the IBM Predesktop Area using it.
Press <Esc> to resume.

Errors without messages

Problem:

When I turn on the machine, nothing appears on the screen and the machine does not beep while starting up.

Note: If you are not sure whether you heard any beeps, turn off the computer; then turn it on again, and listen again. If you are using an external monitor, refer to “Computer screen problems” on page 25.

Solution:

If a power-on password is set, press any key to display the power-on password prompt, and then type the correct password and press Enter.

If the power-on password prompt does not appear, the brightness level might be set to minimum brightness. Adjust the brightness level by pressing Fn+Home.

If the screen still remains blank, make sure that:

vThe battery is installed correctly.

Chapter 2. Solving computer problems 17