Supermicro X10SLA-F User Manual download pdf (Page 73)

Chapter 4: AMI BIOS

4-7

Limit CPUID Maximum

Select Enabled to set the maximum CPU ID value and to boot the legacy operat-

ing systems that cannot support processors with extended CPUID functions. The

options are Enabled and Disabled (for the Windows OS).

Execute Disable Bit Capability (Available if supported by the OS & the CPU)

Set to Enabled 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 a virus from ooding illegal codes

to overwhelm the processor or damage the system during an attack. The default is

Enabled. (Refer to Intel and Microsoft Web Sites for more information.)

Intel® Virtualization Technology (Available when supported by the CPU)

Select Enabled to use the Intel Virtualization Technology to allow one platform to

run multiple operating systems and applications in independent partitions, creat-

ing multiple "virtual" systems in one physical computer. The options are Enabled

and Disabled.

Hardware Prefetcher (Available when supported by the CPU)

If set to Enabled, the hardware prefetcher will prefetch streams of data and instruc-

tions from the main memory to the L2 cache to improve CPU performance. The

options are Disabled and Enabled.

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

Select Enabled for the CPU to prefetch both cache lines for 128 bytes as comprised.

Select Disabled for the CPU to prefetch both cache lines for 64 bytes. The options

are Disabled and Enabled.

Note: If there is any change to this setting, you will need to reboot the

system for the change to take effect. Please refer to Intel’s web site for

detailed information.

CPU AES

Select Enable to enable Intel CPU Advanced Encryption Standard (AES) Instruc-

tions for CPU to enhance data integrity. The options are Enabled and Disabled.

EIST

EIST (Enhanced Intel SpeedStep Technology) allows the system to automatically

adjust processor voltage and core frequency in an effort to reduce power consump-

tion and heat dissipation. Please refer to Intel’s web site for detailed information.

The options are Disabled and Enabled.

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Supermicro X10SLA-F User Manual Page 73