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Chapter 2: BIOS information2-18
Hyper-threading [Enabled]
The Intel Hyper-Threading Technology allows a hyper-threading processor to appear as two
logical processors to the operating system, allowing the operating system to schedule two
threads or processes simultaneously.
[Enabled] Two threads per activated core are enabled.
[Disabled] Only one thread per activated core is enabled.
Active Processor Cores [All]
Allows you to choose the number of CPU cores to activate in each processor package.
Conguration 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 ag 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 Conguration
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.
Turbo Mode [Enabled]
This item appears only when you set the Enhanced Intel SpeedStep Technology item to
[Enabled] and allows you to enable or disable the Intel
®
Turbo Mode Technology.
[Enabled] Allows processor cores to run faster than marked frequency in specic condition.
[Disabled] Disables this function.