Intel D810EMO, MO810E 1.13.1.1System States and Power States

Intel Desktop Board D810EMO/MO810E Technical Product Specification

1.13.1.1System States and Power States

Under ACPI, the operating system directs all system and device power state transitions. The operating system puts devices in and out of low-power states based on user preferences and knowledge of how devices are being used by applications. Devices that are not being used can be turned off. The operating system uses information from applications and user settings to put the system as a whole into a low-power state.

Table 8 lists the power states supported by the board along with the associated system power targets. See the ACPI specification for a complete description of the various system and power states.

Table 8. Power States and Targeted System Power

Global States

G0 – working state

G1 – sleeping state

G2/S5

G3 – mechanical off.

AC power is disconnected from the computer.

Sleeping States	CPU States	Device States	Targeted System Power*
S0 – working	C0 – working	D0 – working	Full power > 30 W
		state
S1 – CPU stopped	C1 – stop	D1, D2, D3 –	5 W < power < 30 W
	grant	device
		specification
		specific.
S3 – Suspend-to-	No power	D3 – no power	Power < 5 W **
RAM. Context		except for wake
saved to RAM.		up logic.
S5 – Soft off.	No power	D3 – no power	Power < 5 W **
Context not saved.		except for wake
Cold boot is		up logic.
required.
No power to the	No power	D3 – no power for	No power to the system so
system.		wake up logic,	that service can be
		except when	performed.
		provided by
		battery or external
		source.

*Total system power is dependent on the system configuration, including add-in boards and peripherals powered by the system chassis’ power supply.

**Dependent on the standby power consumption of wake up devices used in the system.