User`s manual

SBC81206 PICMG 1.0 SBC User’s Manual
Phoenix-Award BIOS Utility
50
z ACPI Function
This item allows you to enable/disable the Advanced Configuration
and Power Management (ACPI). The function is always “Enabled”.
z ACPI Suspend Type
This item specifies the power saving modes for ACPI function. If
your operating system supports ACPI, such as Windows 98SE,
Windows ME and Windows 2000, you can choose to enter the
Standby mode in S1 (POS) or S3 (STR) fashion through the setting
of this field. Options are:
[S1(POS)] The S1 sleep mode is a low power state. In this
state, no system context is lost (CPU or chipset) and
hardware maintains all system context.
[S3(STR)] The S3 sleep mode is a lower power state where
the information of system configuration and open
applications/files is saved to main memory that remains
powered while most other hardware components turn off to
save energy. The information stored in memory will be used
to restore the system when a “wake up” event occurs.
z Power Management
This option allows you to select the type (or degree) of power saving for
Doze, Standby, and Suspend modes. The table below describes each
power management mode:
Max Saving
It is maximum power savings, only available for SL
CPUs. The inactivity period is 1 minute in each mode.
User Define
It sets each mode. Select time-out periods in the PM
Timers section.
Min Saving
It is minimum power savings. The inactivity period is 1
hour in each mode (except the hard drive).
z Video Off Method
This setting determines the manner in which the monitor is blanked.
V/H
SYNC+Blank
Turns OFF vertical and horizontal
synchronization ports and writes blanks to the
video buffer
DPMS
Select this option if your monitor supports the
Display Power Management Signaling (DPMS)
standard of the Video Electronics Standards
Association (VESA). Use the software supplied
for your video subsystem to select video power
management values.