CPU Performance Settings

The items in this menu is setting for CPU Ratio/Features.

CPU Ratio [Auto]

This item allows user manually adjust the maximum non-turbo CPU ratio. The value will be limited to CPU-based or factory settings. Adjusting the CPU Ratio value will change CPU Performance Settings.

Use the <+> and <-> keys to adjust the value. The values range from 12 to 57 with 1 interval.

•[Values 12~32] Presets Enhanced Intel SpeedStep Technology and Turbo Mode to [Disabled] but can be adjusted. Turbo Mode Parameters settings is limited to CPU Core Current Limit.

•[Values 33~57] Resumes full adjustment for Turbo Mode Parameters but disallows configuration for Turbo Mode.

Enhanced Intel SpeedStep Technology® [Enabled]

Enhanced Intel SpeedStep Technology® allows the system operation system to dynamically adjust processor voltage and cores frequency, which can result in decreased average power consumption and decreased average heat production.

Configuration options: [Disabled] [Enabled]

Turbo Mode [Enabled]

It automatically allows processors cores to run faster than the base operating frequency if it’s operating below power, current, and temperature specification limit.

Configuration options: [Disabled] [Enabled]

Turbo Mode Parameters

Long Duration Power Limit [Auto]

This item is Power Limit 1 in Watts. Default setting of this item is TDP (130W). For Sandy Bridge-E, Turbo Ratio can be kept a time duration exceeding TDP for maximum performance. Any value under 255 can be programmed. Use the <+> and <-> keys to adjust the value.

Long Duration Maintained [Auto]

This item is Power Limit 1 Time in second. The value can vary from 1 to 32, which indicates that 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 item is Power Limit 2 value in Watts. It 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. Intel recommends that the 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.

Additional Turbo Voltage [Auto]

Maximum additional voltage can be applied to the CPU when Turbo Boost is engaged. Use the <+> and <-> keys to adjust the value.

CPU Core Current Limit [Auto]

This item allows user to enter CPU Core Current Limit, unit in 0.125A. Use the <+> and <-> keys to adjust the value.

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Chapter 3: BIOS setup