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Supermicro C7Z97-OCE Motherboard User’s Manual
Limit CPUID Maximum
Select Enabled to set the maximum CPU ID value and to boot a legacy
OS that cannot support processors with extended CPUID functions. The
options are Enabled and Disabled (for the Windows OS).
Execute Disable Bit
(Available if supported by the OS & the CPU)
Set to Enabled to enable the Execute Disable Bit to 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 inde-
pendent partitions, creating 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 instructions 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
power off and reboot the system for the change to take effect.
Please refer to Intel’s web site for detailed information.
CPU AES
Select Enable for Intel CPU Advanced Encryption Standard (AES) Instruc-
tions support to enhance data integrity. The options are Enabled and
Disabled.
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