Related service information
Power management
Note: Power management modes are not supported for APM operating system.
To reduce power consumption, the computer has three power management modes: screen blank, sleep (standby), and shut down.
Screen blank state
If the time set on the “Turn off monitor” timer in the operating system expires, the LCD backlight turns off. You can also turn off the LCD backlight by pressing F9.
To end screen blank state and resume normal operation, press any key.
Putting the computer to sleep or shutting it down
When you have finished working with your computer, you can put it to sleep or shut it down.
Putting your computer to sleep
If you will be away from your computer for only a short time, put the computer to sleep. When the computer is in sleep mode, you can quickly wake it to resume use, bypassing the startup process. To put the computer to sleep, do one of the following:
•Close the display lid.
•Press the Power button.
•Open the start menu, and then select Power 
→ Sleep.
Attention: Wait until the power indicator light starts blinking (indicating that the computer is in sleep mode) before you move your computer. Moving your computer while the hard disk is spinning can damage the hard disk, causing loss of data.
To wake the computer, do one of the following:
•Press any key on the keyboard.
•Press the Power button.
Shutting down the computer
If you are not going to use your computer for a long time, shut it down.
To shut down the computer, do one of the following:
•Open the start menu, and then select Power 
→ Shut down.
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