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Using a Battery
Power Management Modes
Standby and Sleep Mode
Standby mode (sleep mode in Microsoft Windows Vista™) conserves power by turning off the display
and the hard drive after a predetermined period of inactivity (a time-out). When the computer exits
standby or sleep mode, it returns to the same operating state it was in before entering standby or sleep
mode.
NOTICE:
If your computer loses AC and battery power while in standby or sleep mode, it may lose data.
To enter standby mode in Windows XP, click the
Start
button, click
Turn off computer
, and then click
Stand by .
To enter sleep mode in Windows Vista, click the Windows Vista Start button , and then click Sleep .
Depending on how you set the power management options in the Power Options Properties window or
the QuickSet Power Management Wizard, you may also use one of the following methods:
• Press the power button.
• Close the display.
• Press <Fn><Esc>.
To exit standby or sleep mode, press the power button or open the display, depending on how you set the
power management options. You cannot make the computer exit standby or sleep mode by pressing a key
or touching the touch pad or track stick.
Hibernate Mode
Hibernate mode conserves power by copying system data to a reserved area on the hard drive and then
completely turning off the computer. When the computer exits hibernate mode, it returns to the same
operating state it was in before entering hibernate mode.
NOTICE:
You cannot remove devices or undock your computer while your computer is in hibernate mode.
Your computer enters hibernate mode if the battery charge level becomes critically low.
To manually enter hibernate mode in Windows XP, click the
Start button, click Turn off computer , press
and hold <Shift>, and then click Hibernate .
To manually enter hibernate mode in Windows Vista, click the Windows Vista Start button , and
then click Hibernate .
Depending on how you set the power management options in the Power Options Properties window or
the QuickSet Power Management Wizard, you may also use one of the following methods to enter
hibernate mode:
• Press the power button.
• Close the display.
• Press <Fn><F1>.