Intel S845WD1-E manual Wake-up Devices and Events

Table 6.	Power States and Targeted System Power (continued)
			Processor		Targeted System
Global States		Sleeping States	States	Device States	Power (Note 1)
G2/S5		S5 – Soft off.	No power	D3 – no power	Power < 5 W (Note 2)
		Context not saved.		except for
		Cold boot is		wake-up logic.
		required.
G3 –		No power to the	No power	D3 – no power for	No power to the system.
mechanical off		system.		wake-up logic,	Service can be performed
AC power is				except when	safely.
				provided by
disconnected
				battery or external
from the
				source.
computer.

Notes:

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

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

Wake-up Devices and Events

Table 7 lists the devices or specific events that can wake the computer from specific states.

Table 7. Wake-up Devices and Events

These devices/events can wake up the computer…	…from this state
These devices/events can wake up the computer…	…from this state
Power switch	S1, S3, S4, S5
RTC alarm	S1, S3, S4, S5
LAN	S1, S3, S4, S5 (Note 1)
CNR	S1, S3, S4 (Note 2), S5 (Note 2)
PME#	S1, S3, S4, S5
Modem (back panel Serial Port A)	S1, S3
USB	S1, S3

Notes:

1.S4 state is dependent on an OS that supports this wake event.

2.For LAN and PME#, S5 is disabled by default in the BIOS Setup program. Setting this option to Power On will enable a wake-up event from LAN in the S5 state.

✏NOTE

The use of these wake-up events from an ACPI state requires an operating system that provides full ACPI support. In addition, software, drivers, and peripherals must fully support ACPI wake events.

30 Intel Server Board S845WD1-E Product Guide