Lenovo 59375192 manual Troubleshooting, Display problems, Bios password problems

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Chapter 4. Troubleshooting

Troubleshooting -------------------------------------------------------------------------------------

Display problems

When I turn on the computer, nothing appears on the screen.

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 properly set, and the screen remains blank, have the computer serviced.

When I turn on the computer,

Restore backed-up files to your Windows environment or

only a white cursor appears on

the entire contents of your hard disk to its original factory

a blank screen.

contents using the Lenovo OneKey Recovery System. If you

 

still see only the cursor on the screen, have the computer

 

serviced.

 

The screen goes blank while

Your screen saver or power management may be enabled.

the computer is on.

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 F9(

 

) 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, ask the system

 

administrator to clear 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 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.

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Contents Lenovo G700/G710 Regulatory Notice Contents Page Getting to know your computer Top viewPower button Built-in microphone with noise reduction SpeakersNovo button Touch pad Using the keyboard Numeric keypadFunction key combinations Hotkeys Setting hotkey mode Left-side view Inserting a memory card  Using memory cards not suppliedRemoving a memory card  Connecting USB device  Connecting a Bluetooth device on select models Enabling Bluetooth communications on your computerJackCombo audio Right-side viewOptical drive on select models Kensington lock slot Front view IndicatorsSystem status Bottom view Configuring the operating system for the first time Starting to use WindowsStart screen DesktopStarting to use Windows Search charmCharms Settings charm Share charmStart charm Devices charm Putting your computer to sleep  Shutting down the computer Enabling wireless connection Connecting to a wireless networkHelp and support  Backing up the system partition Lenovo OneKey Recovery System Restoring Troubleshooting  Drivers and preinstalled software Lenovo OneKey Recovery System  Finding informationTroubleshooting  Bios setup utility Getting help Display problems TroubleshootingBios password problems Troubleshooting Sleep problems Display panel problemsTroubleshooting Sound problems Battery pack problemsHard disk drive problem OneKey Recovery System problemsOther problems RespondReplacing the battery pack Appendix A. CRU instructionsAppendix A. CRU instructions Handling a hard disk driveAppendix A. CRU instructions Remove the frame fixing screws c Take out the hard disk drive secured in a metal frame e Replacing memory Appendix A. CRU instructions Appendix A. CRU instructions Replacing the wireless LAN card Appendix A. CRU instructions Removing the optical drive Appendix A. CRU instructions Trademarks En-US Rev. CT02