Gateway M500 - Manual (Page 58)

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Chapter 3: Managing Power
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Power management
Your notebook 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, hard drive, a peripheral device connected
to the parallel port, and video memory. If no activity is detected for a period
of time (called an inactivity timeout), your notebook stops some or all of these
devices in order to conserve energy.
Your notebook employs a power management scheme that supports ACPI
(Advanced Configuration and Power Interface) which allows for maximum
power conservation and maximum performance at the same time. Windows
handles all power-saving chores for your computer.
Advanced Configuration and Power Interface
Advanced Configuration and Power Interface (ACPI) is a power management
specification jointly developed by Compaq/Intel/Microsoft/Phoenix/Toshiba.
ACPI enables Windows to control the amount of power given to each device
attached to your notebook. With ACPI, Windows can turn off peripheral devices
when they are not in use to save power.
Tips & Tricks We recommend you enable power management to prolong
your battery life. See the Windows help for more details.