MiTAC 8170 1.5.9.5 Definitions when no APM or ACPI engaged, System States:, Event Notifications:

	8170 N/B MAINTENANCE
Event Notifications:
Standby	-When all the devices have no system activities for a specific time period, BIOS will
	inform a standby event once OS calls GetPMEvent Function.
Suspend	-When all the devices have no system activities for a specific time period, BIOS will
	inform a suspend event once OS calls GetPMEvent Function.
Activities	-System activities is defined in SCU one by one. SCU also includes two columns for the
	time periods for Standby and Suspend. In addition, Keyboard activity is always one of
	the system activities. Whenever any system activities detected, timers for Standby and
	Suspend are reloaded into the value specified. By the way, RTC could also
	programmable to wake up the system from Standby and Suspend states.
Exception	-Note, when APM is disabled, BIOS should disable all timers and not to automatically
	power manage devices. Furthermore, the APM BIOS will neither response to CPU Idle
	Function, nor recognize the time periods set for Standby and Suspend in SCU.

System States:
Full On	-Full running state, the system is in optimized performance
Idle	-No Idle mode support in this situation .
Standby	-Same as S1/S2 above
Suspend	-Same as S3 above (Including save-to-ram and power-on-suspend)