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Chapter 6: UEFI BIOS
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Processor Max Ratio
•
Processor Min Ratio
•
Microcode Revision
•
L1 Cache RAM
•
L2 Cache RAM
•
L3 Cache RAM
•
Processor 0 Version
Hyper-Threading (ALL)
Select Enabled to support Intel Hyper-threading Technology to enhance CPU performance.
The options are Disable and
Enable
.
Cores Enabled
Set a numeric value to enable the number of cores. Refer to Intel's website for more
information. Enter
0
to enable all cores.
Execute Disable Bit (Available if supported by the OS & the CPU)
Set to Enable for Execute Disable Bit support, 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
damaging the system during a virus attack. The options are Disable and
Enable
. Refer to
Intel and Microsoft websites for more information.
Intel Virtualization Technology
Use this feature to enable the Vanderpool Technology. This technology allows the system to
run several operating systems simultaneously. The options are Disable and
Enable
.
PPIN Control
Select Unlock/Enable to use the Protected Processor Inventory Number (PPIN) in the system.
The options are Unlock/Disable and
Unlock/Enable
.
Hardware Prefetcher (Available when supported by the CPU)
If set to Enable, 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 Disable
and
Enable
.
Adjacent Cache 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 Enable. The
options are
Enable
and Disable.
