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Chapter 7: BIOS
7-7
Hardware Prefetcher (Available when supported by the CPU)
If set to Enabled, the hardware prefetcher will prefetch streams of data and in-
structions 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)
The CPU prefetches the cache line for 64 bytes if this feature is set to Disabled.
The CPU prefetches both cache lines for 128 bytes as comprised if this feature
is set to Enabled.
L1 Data Prefetch (Available when supported by the CPU)
Select Enabled to enable Level 1 data prefetch support to enhance system
performance. For DP/MP servers, enable or disable this feature for system en-
hancement based on the specifi cations of the application running in the system
at the time. The options are Disabled and Enabled.
DCU Streamer Prefetcher (Available when supported by the CPU)
Select Enabled to support Data Cache Unite (DCU) prefetch to speed up data
accessing and processing in the DCU to enhance CPU performance. The options
are Disabled and Enabled.
DCU IP Prefetcher
Select Enabled for DCU (Data Cache Unit) IP Prefetcher support, which will
prefetch IP addresses to improve network connectivity and system performance.
The options are Enabled and Disabled.
Intel® Virtualization Technology (Available when supported by the CPU)
Select Enabled to support Intel Virtualization Technology, which will 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
website for detailed information.)
Clock Spread Spectrum
Select Enable to enable Clock Spectrum support, which will allow the BIOS to
monitor and attempt to reduce the level of Electromagnetic Interference caused
by the components whenever needed. The options are Disabled and Enabled.