Lenovo IdeaPad U450 Manuel d'utilisateur télécharger pdf (Page 61)

Chapter 5. Troubleshooting

A Password problem

I forgot my password. • If you forget your user password, you must take

your computer to a Lenovo authorized servicer or a

marketing representative to have the password

changed.

• 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 supervisor 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.

Keyboard problems

A number appears when

you enter a letter.

• The numeric lock function is on. To disable it, press

Fn + F8.

Sleep or hibernation problems

The computer enters sleep

mode unexpectedly.

•

If the processor overheats, the computer automatically

enters sleep mode to allow the computer to cool and to

protect the processor and other internal components.

Check the settings for sleep mode.

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Lenovo IdeaPad U450 Manuel d'utilisateur Page 61