Message: Hibernation error
Solution: 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.
Message: Operating system not found.
Solution: Verify the following:
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 BIOS
Message: Fan error
Solution: Cooling fan has failed. Have the computer serviced.
Errors without codes or 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. If you are using an external
monitor, refer to External monitor problems.
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
If the power-on password prompt does not appear, the brightness control
might be set to minimum brightness. Adjust the brightness level by pressing
If the screen still remains blank, make sure that:
v The battery is installed correctly.
v The ac adapter is connected to the computer and the power cord is plugged
into a working electrical outlet.
v The computer power is on. (Turn on the power switch again for
Solving computer problems
Chapter 2. Solving computer problems