Clock Spread Spectrum; Hyper-Threading (All); Cores Enabled; Execute Disable Bit (Available If Supported By The Os & The Cpu) - Supermicro X10SRG-F User Manual

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L3 Cache RAM
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CPU1 Version
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CPU2 Version

Clock Spread Spectrum

Select Enable for Clock Spectrum support, which will allow the BIOS to monitor
and attempt to reduce the level of Electromagnetic Interference caused by the
components whenever needed. Select Disabled to enhance system stability. The
options are Disabled and Enabled.

Hyper-Threading (ALL)

Select Enable to use Intel Hyper-Threading Technology to enhance CPU perfor-
mance. The options are Enable and Disable.

Cores Enabled

This item configures the number of CPU cores to enable. Enter '0' to enable all
cores. Please enter a numeric value. The maximum is dependent on what type of
CPU is installed.
Execute Disable Bit (Available if supported by the OS & the CPU)
Set to Enabled for Execute Disable Bit support which will allow the processor to
designate areas in the system memory where an application code can execute and
where it cannot, thus preventing a worm or a virus from flooding illegal codes to over-
whelm the processor or damaging the system during a virus attack. The options are
Enable and Disable. (Refer to Intel and Microsoft websites for more information.)

PPIN Control

Select Unlock/Enable to use the Protected-Processor Inventory Number (PPIN) in
the system. The options are Unlock/Enable and Unlock/Disable.

Hardware Prefetcher (Available when supported by the CPU)

If this item is set to Enable, the hardware prefetcher will prefetch streams of data
and instructions from the main memory to the Level 2 (L2) cache to improve CPU
performance. The options are Disable and Enable.

Adjacent Cache Line Prefetch (Available when supported by the CPU)

Select Enable for the CPU to prefetch both cache lines for 128 bytes as comprised.
Select Disable for the CPU to prefetch both cache lines for 64 bytes. The options
are Disable and Enable.
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Chapter 4: AMI BIOS