Green system mode – Foxconn G45MG User Manual

Page 33

Green System Mode

ACPI (Advanced Configuration and Power Interface) is an open industry standard interfaces
enabling OS-directed configuration, power management, and thermal management of mobile,
desktop, and server platforms. It defines five sleeping states, they are :

S1 - The S1 sleeping state is a low wake latency sleeping state. In this state, no system

context is lost (CPU or chip set) and hardware maintains all system context. (also called
Power on Suspend)

S2 - The S2 sleeping state is a low wake latency sleeping state. This state is similar to the S1

sleeping state except that the CPU and system cache context is lost (the OS is respon-
sible for maintaining the caches and CPU context). Control starts from the processor’s
reset vector after the wake event.

S3 - The S3 sleeping state is a low wake latency sleeping state where all system context

is lost except system memory. CPU, cache, and chip set context are lost in this state.
Hardware maintains memory context and restores some CPU and L2 configuration
context. Control starts from the processor’s reset vector after the wake event. (also called
Suspend to RAM)

S4 - The S4 sleeping state is the lowest power, longest wake latency sleeping state supported

by ACPI. In order to reduce power to a minimum, it is assumed that the hardware plat-
form has powered off all devices. Platform context is maintained. (also called

Suspend

to Disk)

S5 - The S5 state is similar to the S4 state except that the OS does not save any context. The

system is in the “soft” off state and requires a complete boot when it wakes. Software
uses a different state value to distinguish between the S5 state and the S4 state to allow
for initial boot operations within the BIOS to distinguish whether or not the boot is going
to wake from a saved memory image.

Green System Mode

System Mode

[Normal System]

Help Item

Green on Demand

[Enabled]

ACPI Suspend Type

[S1(POS)]

System Mode Select:

Power On after Power Fail

[Power Off]

Normal System/

Resume by PME

[Enabled]

Green System

Wake On USB Devices

[Enabled]

Wake On PS2 Keyboard

[Enabled]

Resume On RTC

[Disabled]

C1E Function

[Enabled]

EIST Function

[Disabled]

CPU Temperature

:52

C/125

System Temperature

:39

C/102

CPU Fan Speed

:2586 RPM

System Fan Speed

:N/A

Vcore

:1.104V

Memory 1.5V

:1.488V

↑↓←→:Move Enter:Select +/-/:Value F10:Save ESC:Exit F1:General Help

F9:Optimized Defaults

[Normal System]