Themis RES - 32XR3, Installation Manual

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3-8
Themis Computer
RES-21XR3 for X8SAX Installation Manual
3.3.2.3 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 in the forward or backward manner to
improve CPU performance. The options are Disabled and
Enabled (default).
3.3.2.4 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 (default).
3.3.2.5 MPS and ACPI MADT Ordering
Choose the method of ordering for the Multiple APIC Description Table (MADT).
Select Modern Ordering for Microsoft Windows XP or later, Select Legacy Order-
ing for Microsoft Windows 2000 or earlier. The options are
Modern Ordering
(default) and Legacy Ordering.
3.3.2.6 Intel® Virtualization Technology (Available when supported by
the CPU)
Select Enabled to use the feature of 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
(default) and Disabled.
3.3.2.7 Execute-Disable Bit Capability (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 flooding illegal codes to
overwhelm the processor or damage the system during an attack. The default is
Enabled (default). (Refer to Intel and Microsoft Web Sites for more information.)
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 website for detailed
information.