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Power Management
Chapter 2 Operating on Battery Power 39
Power Management
This computer has a built-in power management unit that
monitors system activity. System activity refers to any
activity involving one or more of the following devices:
keyboard, mouse, floppy drive, hard disk, peripherals
connected to the serial and parallel ports, and video
memory. If no activity is detected for a period of time (called
an inactivity time-out), the computer stops some or all of
these devices in order to conserve energy.
Power Management Modes
Display Standby Mode
Screen activity is determined by the keyboard, the built-in
touchpad, and an external PS/2 pointing device. If these
devices are idle for the period specified by the Display
Timeout, the display shuts off until you press a key or move
the touchpad or external mouse.
"Automatic Dim" Feature
The computer has a unique "automatic dim" power saving
feature. When the computer is using AC power and you
disconnect the AC adapter from the computer, it
automatically dims the LCD backlight to save power. If you
reconnect AC power to the computer, it automatically
adjusts the LCD backlight to a brighter level.
Note: We recommend you enable power management to
prolong your battery life.
310-e.book Page 39 Tuesday, October 27, 1998 5:17 PM