Chapter 4. Troubleshooting
Troubleshooting
Display problems
When I turn on the computer, nothing appears on the screen.
When I turn on the computer, only a white cursor appears on a blank screen.
The screen goes blank while the computer is on.
•If the screen is blank, make sure that:
-The battery pack 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 power is on. (Press the Power button again for confirmation.)
-The memory is installed correctly.
•If these items are installed and configured correctly, have the computer serviced.
•Restore
•Your screen saver or power management may be enabled. Do one of the following to exit from the screen saver or to resume from sleep mode:
-Touch the touch pad.
-Press any key on the keyboard.
-Press the Power button.
-Press Fn + F2 to confirm whether the backlight of the LCD screen has been turned off.
BIOS password problems
I forgot my password. | • If you forget your user password, you must ask the system |
| administrator to reset your user password. |
| • If you forget your hard disk drive password, a Lenovo authorized |
| servicer cannot reset your password or recover data from the hard |
| disk. You must take your computer to a Lenovo authorized servicer |
| or a marketing representative to have the hard disk drive replaced. |
| Proof of purchase is required, and a fee will be charged for parts and |
| service. |
| • If you forget your administrator password, a Lenovo authorized |
| servicer cannot reset your password. You must take your computer |
| to a Lenovo authorized servicer or a marketing representative to |
| have the system board replaced. Proof of purchase is required, and a |
| fee will be charged for parts and service. |
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