Intel KM4AM - Manual (Page 50)

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BIOS Setup
Power Management Setup
IPCA Function
This item is to activate the ACPI (Advanced Configuration and Power Management
Interface) function. If your operating system is ACPI-aware, such as Windows 98SE/
2000/ME, select Enabled. Available options: Enabled, Disabled.
Sleep State
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 s y s -
tem 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.
Power Management Option
This item is used to select the degree (or type) of power saving and is related to
these modes: Suspend Mode and HDD Power Down. There are three options for
power management:
Min Saving
Minimum Power Management. Suspend Mode=1 Hour
Max Saving
Maximum Power Management. Suspend Mode=1 Min
User Define Allows end users to configure each mode separately.
MSI Reminds You...
S3-related functions described in this section are available only when
your BIOS supports S3 sleep mode.