Acpi Bios - Acer AcerAltos 21000 System Manual

System Sleep Timer
This parameter sets the system to the lowest power-saving mode. It
automatically enters into the sleep or the suspend mode after a
specified period of inactivity. Any keyboard or mouse action, or any
LAN activity detected resumes system operation.
Stop CPU Clock in Sleep State
If you want to stop the CPU clock when the system enters the sleep or
suspend mode, set this parameter to . If not, then select .
Yes No
4.5.2

ACPI BIOS

ACPI (Advanced Configuration and Power Interface) enables the
operating system to monitor and control the amount of power supplied
to each device attached to the system. When enabled, ACPI uses
the OS (Operating System) to turn off the peripheral devices (such as
a CD-ROM) that are not in use. The default setting is
Disabled.
BIOS Utility 4-17