NEC Versa LX User Manual page 35

Power Management Setup
Your Versa uses the Advanced Configuration and Power Interface (ACPI)
which enables the operating system to manage the power given to each attached
device and to turn off a device when not in use. In addition, ACPI enables
manufacturers to develop computers that automatically power up with a touch to
the keyboard.
The Power Management Setup menu lets you balance high performance and
energy conservation using parameters including the following.
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ACPI Aware OS — Specifies whether or not the system will boot to an
ACPI-aware operating system.
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Power Switch Button — Lets you use the Power button as a power switch
or a sleep button.
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Power/Sleep Switch Lock — Allows you to lock the power switch setting
when the LCD panel is closed.
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Power Management under AC — Specifies whether to enable power
management features when AC power is in use. When AC power is
connected to your Versa system, power management is usually disabled.
If you enable this parameter, the system automatically activates the power
management profile you set, even when AC power is used.
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Power Savings Level — Lets you choose one of four levels of power
management.
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2-20 System Configuration and Setup
High Perform provides the greatest system performance with only
minimal power conservation.
Longest Life provides the maximum amount of power savings.
Off disables power management and all device timeouts.
Custom lets you define your own power management configuration
by selecting values for specific device timeouts. Custom lets you set
the following timeouts.
Hard Disk Timeout — Allows you to select the amount of time
before your hard disk shuts down.
Video Timeout — Allows you to select the amount of time before
your video shuts down.
Peripheral Timeout — Lets you choose the amount of time before
your peripherals are controlled by power management.
Audio Device Timeout — Selects the amount of time before your
audio device shuts down.
Standby Timeout — Allows you to select the system standby timeout
period.