CPU Power Management

The sub-items in this menu allow you to set the CPU ratio and features.

CPU Ratio [Auto]

Allows you to manually adjust the maximum non-turbo CPU ratio. Use <+> and <-> keys to adjust the value. The valid value ranges vary according to your CPU model.

Enhanced Intel SpeedStep Technology [Enabled]

Allows you to enable or disable the Enhanced Intel® SpeedStep Technology (EIST).

[Disabled]

Disables this function.

[Enabled]

The operating system dynamically adjusts the processor voltage and

 

core frequency which may result in decreased average consumption and

 

decreased average heat production.

Turbo Mode [Enabled]

This item appears only when you set the previous item to [Enabled].

[Enabled]

Allows processor cores to run faster than marked frequency in specific

 

conditions.

[Disabled]

Disables this function.

The following three items appear only when you set the Turbo Mode item to [Enabled].

Long duration power limit [Auto]

The default setting of this item will be TDP (65W or 95W for different CPUs). For Sandy Bridge, Turbo Ratio can be kept a time duration exceed TDP for maximum performance. Any under 255 can be programmed. Use the <+> and <-> keys to adjust the value.

Long duration maintained [Auto]

This value can vary from 1 to 32, which indicates the time window for Turbo Ratio over TDP should be maintained. Use the <+> and <-> keys to adjust the value.

Short duration power limit [Auto]

This is the second power limit to provide rapid protection when package power exceeds Power Limit 1. Default setting is 1.25 times Power Limit 1. For Intel recommend, platform must be capable of supporting over Power Limit 2 for up to 10 msec. ASUS board can support over Power Limit 2 for a long duration. Use the <+> and <-> keys to adjust the value.

Primary Plane Current Limit [Auto]

Maximum instantaneous current allowed at any given time for CPU cores. The value is represented in 1/8 A (0.125A) increment. Use the <+> and <-> keys to adjust the value.

Secondary Plane Current Limit [Auto]

Maximum instantaneous current allowed at any given time for internal graphics cores. The value is represented in 1/8 A (0.125A) increment. Use the <+> and <-> keys to adjust the value.

Chapter 3

ASUS P8B75-V

3-9