MSI Micro-ATX B85M-P33 V3 Serie Mode D'emploi page 30

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▶ Active Processor Cores [All]
This item allows you to select the number of active processor cores.
▶ Limit CPUID Maximum [Disabled]
Enables or disables the extended CPUID value.
[Enabled] BIOS will limit the maximum CPUID input value to circumvent
boot problems with older operating system that do not support
the processor with extended CPUID value.
[Disabled] Use the actual maximum CPUID input value.
▶ Execute Disable Bit [Enabled]
Intel's Execute Disable Bit functionality can prevent certain classes of malicious
"buffer overflow" attacks where worms attempt to execute code to damage the
system. It is recommended that keeps this item enabled always.
[Enabled] Enables NO-Execution protection to prevent the malicious
attacks and worms.
[Disabled] Disables this function.
▶ Intel Virtualization Tech [Enabled]
Enables or disables Intel Virtualization technology.
[Enabled] Enables Intel Virtualization technology and allows a platform
to run multiple operating systems in independent partitions.
The system can function as multiple systems virtually.
[Disabled] Disables this function.
▶ Hardware Prefetcher [Enabled]
Enables or disables the hardware prefetcher (MLC Streamer prefetcher).
[Enabled] Allows the hardware prefetcher to automatically pre-fetch
data and instructions into L2 cache from memory for tuning
the CPU performance.
[Disabled] Disables the hardware prefetcher.
▶ Adjacent Cache Line Prefetch [Enabled]
Enables or disables the CPU hardware prefetcher (MLC Spatial prefetcher).
[Enabled] Enables adjacent cache line prefetching for reducing the
cache latency time and tuning the performance to the specific
application.
[Disabled] Enables the requested cache line only.
▶ CPU AES Instructions [Enabled]
Enables or disables the CPU AES (Advanced Encryption Standard-New
Instructions) support. This item appears when a CPU supports this function.
[Enabled] Enables Intel AES support.
[Disabled] Disables Intel AES support.
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