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Chapter 3, Active processor cores [all, Limit cpuid maximum [disabled – Asus P8Z77-V LX User Manual

Page 77: Execute disable bit [enabled, Intel, Virtualization technology [disabled, Hardware prefetcher [enabled, Adjacent cache line prefetch [enabled, Cpu power management configuration cpu ratio [auto, Enhanced intel speedstep technology [enabled

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ASUS P8Z77-V LX

3-15

Chapter 3

Active Processor Cores [All]

Allows you to choose the number of CPU cores to activate in each processor package.

Configuration options: [All] [1] [2] [3]

Limit CPUID Maximum [Disabled]

[Enabled]

Allows legacy operating systems to boot even without support for CPUs

with extended CPUID functions.

[Disabled]

Disables this function.

Execute Disable Bit [Enabled]

[Enabled]

Enables the No-Execution Page Protection Technology.

[Disabled]

Forces the XD feature flag to always return to zero (0).

Intel

®

Virtualization Technology [Disabled]

[Enabled]

Allows a hardware platform to run multiple operating systems separately

and simultaneously, enabling one system to virtually function as several

systems.

[Disabled]

Disables this function.

Hardware Prefetcher [Enabled]

[Enabled]

Allows a hardware platform to run multiple operating systems separately

and simultaneously, enabling one system to virtually function as several

systems.

[Disabled]

Disables this function.

Adjacent Cache Line Prefetch [Enabled]

[Enabled]

Allows a hardware platform to perform adjacent cache line prefetching.

[Disabled]

Disables this function.

CPU Power Management Configuration
CPU Ratio [Auto]

Allows you to set the ratio between the CPU Core Clock and the BCLK Frequency. Use <+>

and <-> keys to adjust the ratio. 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]

The CPU runs at its default speed.

[Enabled]

The operating system controls the CPU speed.