Chapter 2: BIOS information 2-19
Adjacent Cache Line Prefetcher [Enabled]
[Enabled] Enables the Adjacent Cache Line Prefetcher function. This item should be
enabled in order to enable the L2 cache (MLC) Spatial Prefetcher for tuning
performance of the specic application.
[Disabled] Disables this function.
Max CPUID Value Limit [Disabled]
[Enabled] Allows legacy operating systems to boot even without support for CPUs
with extended CPUID functions.
[Disabled] Disables this function.
Intel(R) Virtualization Tech [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.
CPU TM function [Enabled]
[Enabled] Enables the overheated CPU to throttle its clock speed to cool down.
[Disabled] Disables this function.
Execute-Disable Bit Capability [Enabled]
[Enabled] Enables the No-Execution Page Protection Technology.
[Disabled] Forces the XD feature ag to always return to zero (0).
Active Processor Cores [All]
[All] Activate all CPU cores in the processor package.
[1] Activate only 1 CPU core in the processor package.
[2] Activate 2 CPU cores in the processor package.
A20M [Disabled]
[Enabled] Legacy OSes and APs may need this function enabled.
[Disabled] Disables this function.
Intel(R) SpeedStep (TM) Tech [Enabled]
[Enabled] The CPU speed is controlled by the operating system.
[Disabled] The CPU runs at its default speed.
Intel(R) TurboMode Tech [Enabled]
This item appears only when you set the Intel(R) SpeedStep(TM) Tech item to
[Enabled]. Turbo mode allows processor cores to run faster than the marked frequency
in specic condition.
Intel(R) C-STATE Tech [Disabled]
[Enabled] Allows the CPU to save more power under idle mode. Enable this item only
when you install a C-State Technology-supported CPU.
[Disabled] Disables this function.
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