Chapter 4
4-16
ACPI Standby State
This item specifies the power saving modes for ACPI function. 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 infor-
mation 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.
Auto
OS driver determines the best mode for ACPI standby
state.
Re-Call VGA BIOS at S3 Resuming
Selecting
Enabled
allows BIOS to call VGA BIOS to initialize the VGA card
when system wakes up (resume) from S3 sleep state. The system resume time
is shortened when you disable the function, but system will need an AGP
driver to initialize the VGA card. Therefore, if the AGP driver of the card does
not support the initialization feature, the display may work abnormally or not
function after resuming from S3.
Power Management Features