Power management setup – Foxconn G41MXP User Manual

Page 45

Power Management Setup

►Energy-using Products

This item is used to enable/disable the EuP(Energy-using Products) feature. When enable, the
suspend power of the chipset will be cut off in S5 suspend mode in order to reduce the power
consumption of motherboard.
Enable: S1/S3 is normal, S4/S5 wake up only by pressing the power button.
Disable: Normal ACPI function.

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 platform
has powered off all devices. Platform context is maintained. (also called

Suspend to

Disk)

Power Management Setup

Energy-using Products

Help Item

ACPI Suspend Type

[S3 (STR)]

HPET

[Enabled]

Enable: S1/S3 is normal,

Resume by Ring

[Disabled]

S4/S5 wake up only by

Resume by LAN

[Enabled]

pressing the power

Resume by PCIE PME

[Enabled]

button.

Resume by PCI Card

[Enabled]

Disable: Normal ACPI

Resume by USB Devices

[Enabled]

function.

Resume by PS2 Keyboard

[Enabled]

Resume by PS2 Mouse

[Enabled]

But this item would not

Resume by RTC

[Disabled]

affect Resume by Ring&

Resume by LAN.

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

F9:Optimized Defaults

[Enabled]