Chapter 3
3-24BOIS Setup 3-25 BIOS Setup
3-24BOIS Setup 3-25 BIOS Setup
Hyper-Threading Technology [Enabled]
The processor uses Hyper-Threading technology to increase transaction rates
and reduces end-user response times. Intel Hyper-Threading technology treats
the multi cores inside the processor as multi logical processors that can execute
instructions simultaneously. In this way, the system performance is highly
improved.
[Enable] Enables Intel Hyper-Threading technology.
[Disabled] Disables this item if the system does not support HT function.
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]
Intels 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.
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