Chapter 4. Troubleshooting
Incorrect characters appear | • Are the operating system or programs installed |
on the screen. | correctly? If they are installed and configured |
| correctly, have the computer serviced. |
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BIOS password problems |
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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 HDD 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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Sleep problems |
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The critical
The computer enters sleep mode immediately after
•The battery power is getting low. Connect the AC power adapter to the computer, or replace the battery with a fully charged one.
•Make sure that:
-The battery is charged.
-The operating temperature is within the acceptable range. See “Chapter 2. Use and care Information” of Lenovo Safety and General Information Guide.
Note: If the battery is charged and the temperature is within range, have the computer serviced.
The computer does not | • If your computer is in sleep mode, connect the AC |
return from sleep mode, | adapter to the computer and then press any key or |
and the computer does not | the power button. |
work. | • If the system still does not return from sleep mode, |
| stops responding, or cannot be turned off, reset the |
| computer. Unsaved data may be lost. To reset the |
| computer, press and hold the power button for 4 |
| seconds or more. |
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