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SUPERSERVER 5017P-TLN4F/TF User's Manual
Active Processor Cores
Set to Enabled to use a processor's Second Core and beyond. (Please refer to
Intel's web site for more information.) The options are All, 1, 2, and 3.
Limit CPUID Maximum
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 Enabled and Disabled (for the Windows OS.).
Execute-Disable Bit (Available when supported by the OS and 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 feature of Virtualization Technology to allow one plat-
form to run multiple operating systems and applications in independent partitions,
creating multiple "virtual" systems in one physical computer. The options are
Enabled and Disabled.
Note: If there is any change to this setting, you will need to power off and
restart the system for the change to take effect. Please refer to Intel’s
web site for detailed information.
Hardware Prefetcher (Available when supported by the CPU)
If set to Enabled, the hardware pre fetcher will pre fetch streams of data and instruc-
tions from the main memory to the L2 cache in the forward or backward manner to
improve CPU performance. The options are Disabled and Enabled.
Adjacent Cache Line Prefetch (Available when supported by the CPU)
The CPU fetches the cache line for 64 bytes if this option is set to Disabled. The
CPU fetches both cache lines for 128 bytes as comprised if Enabled.
Clock Spread Spectrum
Select Enable to use the feature of Clock Spectrum, 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.