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.

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Intel Server Board S845WD1-E Product Guide

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Intel S845WD1-E manual Wake-up Devices and Events