Owner's Manual

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Intel (R) C-STATE tech.

Intel (R) C-STATE tech. is achieved by making the power and thermal con-

trol unit part of the core logic and not part of the chipset as before. Migration

of the power and thermal management flow into the processor allows us

to use a hardware coordination mechanism in which each core can re-

quest any C-state it wishes, thus allowing for individual core savings to be

maximized. The CPU C-state is determined and entered based on the low-

est common denominator of both cores’ requests, portraying a single CPU

entity to the chipset power management hardware and flows. Thus, soft-

ware can manage each core independently, while the actual power man-

agement adheres to the platform and CPU shared resource restrictions.

C State package limit setting

This item appears only when you set the item “Intel (R) C-STATE tech.” to

[Enabled]. The selected option will programme into C State package limit

[Auto].

Please note that enabling this function may reduce CPU voltage and lead to system

stability or compatibility issue with some power supplies. Please set this item to

[Disable] if above issue occurs.

Active Processor Cores

Use this item to select the number of cores to enable in each processor

package. Configuration options: [All], [1] and [2]. The default value is [All].

A20M

Use this item to enable or disable A20M. Legacy OS and AP may need A20M

enabled. The default value is [Disabled].

Intel (R) SpeedStep(tm) tech.

Intel (R) SpeedStep(tm) tech. is Intel’s new power saving technology.

Processor can switch between multiple frequency and voltage points to

enable power savings. The default value is [Enabled]. Configuration options:

[Auto], [Enabled] and [Disabled]. If you install Windows

XP and select

[Auto], you need to set the “Power Schemes” as “Portable/Laptop” to en-

able this function. If you install Windows

Vista

/ 7 and want to enable

this function, please set this item to [Enabled].