62 Using a Battery
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, click
Turn off computer
, and then click
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 can only make the computer exit standby mode by pressing a key or touching
the touch pad if this option has been enabled. First you must enable USB Wake Support under Power
Management in System Setup. Then right click the Bluetooth icon in the system tray, click Options,
select the Other tab, and select HID Profile Wakeup Setting to select the devices to wake from standby.
To wake from standby, the computer must also be connected to AC power. For more information, see
"System Setup Screens" on page110.
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 while your computer is in hibernate mode.
Your computer enters hibernate mode if the battery charge level becomes critically low.
Power State Power LED
Normal operating state Blue solid light
Low power state Blue light blinking slowly
Standby mode Blue light blinking slowly
Hibernate mode Off
Mechanically off (no AC power) Off
book.book Page 62 Tuesday, February 13, 2007 1:50 PM