2 Operating on battery power
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Display standby mode

Screen activity is dete rmined by the keyboard, t he built-in touchpad, a nd an
external PS/2 pointing device. If these devices are idle for a specified period, the
display shuts off until you press a key or move the touchpad or external mouse.
The computer has a unique "automatic dim" po w er-saving feature. When the
computer is using AC power and you di sconnect the AC adapter from the
computer, it automatical ly dims th e LCD b ack li ght t o s a ve power. If you reconnect
AC power to the computer, it automaticall y adjusts the LCD backlight to a brighter
level.

Hard disk standby mode

The hard disk enters standby mode when there are no disk read/write operations
within a specified period of time. In this state, the power supplied to the hard disk
is reduced to a minimum. The hard disk returns to normal once the computer
accesses it.
Setting power management schemes
Power management schemes allow you to specify the degree of power
management to use on your computer at an y par ticu lar time , s impl y b y pr ess in g the
power management scheme toggle hot key Fn-F3.
Note: When an externa l keyboard is attach ed to the comput er, this feature is
disabled. The feature is also disabled if the operating system does not
support it.