Intel SBC-776 - Manual (Page 76)

Chapter 3 Award BIOS Setup 67
Power Management Setup
ACPI Function
This item allows you to enable/disable the Advanced Configuration
and Power Management (ACPI). The Choices: Enable/Disable
ACPI Suspend Type
This item will set which ACPI suspend type will be used.
S1 (POS) The S1 sleeping state is low wake-up latency sleeping
state. In this state, no system context is lost (CPU or chip set) and
hardware maintains all system context.
S3 (STR) The S3 state is a low wake-up latency sleeping state
where all system context is lost expect system memory. CPU,
cache and chipset context are lost in this state. Hardware maintains
memory context and restores some CPU and L2 configuration
context.