User's Manual

32 Using a Battery
Power Management Modes
Standby Mode
Standby mode 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 mode, it returns to the same
operating state it was in before entering standby mode.
NOTICE: If your computer loses AC and battery power while in standby mode, it may lose data.
To enter standby mode:
•Click the Start button and then click Turn of f c o m pute r → Stand by .
or
• Depending on how you set the power management options in the
Power Options Properties window
or the QuickSet Power Management Wizard, use one of the following methods:
– Press the power button.
– Close the display.
– Press <Fn><Esc>.
To exit standby 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 mode by pressing a key or touching
the touch pad.
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:
• C lick the Start button, click Turn off computer , press and hold <Shift>, and then click Hibernate .
or
• Depending on how you set the power management options in the
Power Options Properties window
or the QuickSet Power Management Wizard, use one of the following methods to enter hibernate
mode:
– Press the power button.
– Close the display.
– Press <Fn><F1>.