Supermicro X8DTN+, User Manual

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X8DTN+ User’s Manual
C1E Support
Select Enabled to enable Enhanced Halt State support. C1E signifi cantly reduces
the CPU's power consumption by reducing the CPU's clock cycle and voltage during
a "Halt State." The options are Disabled and Enabled .
Hardware Prefetcher (Available when supported by the CPU)
If this feature is set to Enabled, the hardware prefetcher will prefetch streams of
data and instructions from the main memory to the L2 cache to improve CPU per-
formance. 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 .
MPS and ACPI MADT Ordering
This feature allows the user to confi gure the MPS (Multi-Processor Specifi cation)
and ACPI settings for your motherboard. Select Modern Ordering if the XP or a
newer version of Windows OS is used in the motherboard. Select Legacy Ordering
if the 2000 or an earlier version of Windows OS is used. The options are Modern
Ordering and Legacy Ordering.
Intel® Virtualization Technology (Available when supported by the CPU)
Select Enabled to use the feature of Virtualization Technology and allow one
platform to run multiple operating systems and applications in independent parti-
tions, 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.
Execute-Disable Bit Capability (Available when supported by the OS and
the CPU)
Select 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 fl 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.)
Simultaneous Multi-Threading (Available when supported by the CPU)
Set to Enabled to use the Simultaneous Multi-Threading Technology, which will
result in increased CPU performance. The options are Disabled and Enabled.