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68 Using the System Setup Program and UEFI Boot Manager
Processor Settings Screen
Option Description
64-bit Specifies if the processor(s) support 64-bit extensions.
Core Speed Displays the processor clock speed.
Bus Speed Displays the processor bus speed.
Logical Processor
(Enabled default)
On processors that support Simultaneous Multi-
Threading (SMT) technology, each processor core
supports up to two logical processors. If this field is set to
Enabled, the BIOS reports both logical processors. If set
to Disabled, only one logical processor is monitored by
the BIOS.
Virtualization Technology
(Disabled default)
Enabled permits virtualization software to use the
virtualization technology incorporated in the processor.
NOTE: Disable this feature if your system will not be
running virtualization software.
Adjacent Cache Line
Prefetch
(Enabled default)
Enable or disables system optimization for sequential
memory access.
Hardware Prefetcher
(Enabled default)
Enables or disables the hardware prefetcher.
Execute Disable
(Enabled default)
Enables or disables Execute Disable Memory Protection
Technology.
Number of Cores per
Processor
(All default)
If set to All, the maximum number of cores in each
processor is enabled.
Turbo Mode If Turbo Boost Technology is supported by the
processor(s), enables or disables Turbo Mode.
C1E
(Enabled default)
When set to Enabled, the processor can switch to a
minimum performance state when idle.
C States When set to Enabled, the processor(s) can operate in all
available power states.
Processor Family-Model-
Stepping
Displays the family, model, and stepping of the selected
processor.
book.book Page 68 Wednesday, January 20, 2010 10:20 AM