Supermicro X11SRi-IF User Manual page 66

Super X11SRi-IF User's Manual
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L1 Cache RAM
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L2 Cache RAM
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L3 Cache RAM
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Processor 0 Version
Hyper-Threading (ALL) (Available when supported by the CPU)
Select Enable to support Intel Hyper-threading Technology to enhance CPU performance.
The options are Disable and Enable.
Max CPUID Value Limit
This feature allows the user to set the maximum CPU ID value. Enable this function to boot
the legacy operating systems that cannot support processors with extended CPUID functions.
The options are Disable and Enable.
Execute Disable Bit (Available if supported by the OS & the CPU)
Use this feature to enable the Execute Disable Bit, 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 virus from flooding illegal codes to overwhelm the processor or
damage the system during an attack. The options are Disable and Enable. (Refer to the Intel
and Microsoft ® websites for more information.)
Intel (VMX) Virtualization Technology
Select Enable to support Intel Virtualization Technology, which will allow one platform to
run multiple operating systems and applications in independent partitions, creating multiple
"virtual" systems in one physical computer. The options are Disable and Enable.
Note: If a change is made to this setting, you will need to reboot the system for the
change to take effect. Refer to Intel's website for detailed information.
PPIN Control
Select Unlock/Enable to use the Protected Processor Inventory Number (PPIN) in the system.
The options are Unlock/Disable and Unlock/Enable.
Hardware Prefetcher (Available when supported by the CPU)
If set to Enable, the hardware prefetcher will prefetch streams of data and instructions from
the main memory to the L2 cache to improve CPU performance. The options are Disable
and Enable.
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