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Solution: A power-on password or a supervisor password is set. Type the password and press Enter to
use the computer (refer to “Using passwords” on page 89). 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.
• Message: The hard disk password prompt
Solution: A hard disk password is set. Type the password and press Enter to use the computer (refer to
“Hard disk passwords” on page 91).
• Message: Hibernation error
Solution: The system conguration changed between the time your computer entered hibernation mode
and the time it left this mode, and your computer cannot resume normal operation.
– Restore the system conguration to what it was before your computer entered hibernation mode.
– If the memory size has been changed, re-create the hibernation le.
• Message: Fan error
Solution: Cooling fan has failed. Have the computer serviced.
Errors without messages
• Problem: My screen keeps blanking when I do not want it to.
Solution: You can disable any system timers, such as the LCD turn-off timer or the blank timer
1. Start Power Manager.
2. Click the Power plan tab (in Windows XP, Power scheme), and then select Maximum Performance
from the predened power plans (in Windows XP, Power scheme).
• 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 by pressing and holding
the power switch for 4 seconds or more. Turn it on and listen again.
Solution: Make sure that:
– The battery is installed correctly.
– The ac power adapter is connected to the computer and the power cord is plugged into a working
electrical outlet.
– The computer is turned on. (Turn the power switch on again for conrmation.)
If a power-on password is set:
– Press any key to display the prompt for the power-on password. If the brightness level of the screen is
low, increase it by pressing the Fn+Home.
– Type the correct password and press Enter (refer to Power-on password).
If these items are properly set, and the screen remains blank, have the computer serviced.
• Problem: When I turn on the machine, only a white cursor appears on a blank screen.
Solution: If you have modied a partition on your hard disk drive or solid state drive by using a partition
software, information about that partition, or the master boot record may have been destroyed.
1. Turn off the computer, and then turn it on again.
2. If you still see only the cursor on the screen, do the following:
Chapter 10. Troubleshooting computer problems 211