Lenovo R50 Series manual Errors without messages, Problem, Solution

	Solving computer problems
Message	Solution
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 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 BIOS Setup Utility. Press F9 and then Enter to load the default setting.
Error - Device Disabled	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, and 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 24.

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.

Chapter 2. Solving computer problems 17