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Processor Settings
To view the Processor Settings screen, power on the system, press F2, and click System Setup Main Menu > System
BIOS > Processor Settings.
Table 34. Processor Settings details
Option
Logical Processor
Virtualization Technology
Kernel DMA Protection
Adjacent Cache Line Prefetch
Hardware Prefetcher
LLC Prefetch
Dead Line LLC Alloc
Directory AtoS
x2APIC Mode
Number of Cores per Processor
Processor Core Speed
Table 35. Processor details
Option
Family-Model-Stepping
Description
Each processor core supports up to two logical processors.
If this option is set to Enabled, the BIOS displays all the
logical processors. If this option is set to Disabled, the BIOS
displays only one logical processor per core. This option is set
to Enabled by default.
Enables or disables the virtualization technology for the
processor. This option is set to
Enabled by default.
This option is set to Disabled by default. When the option is
set to Enabled, BIOS and Operating System will enable direct
memory access protection for DMA capable peripheral devices
using virtualization technology.
Optimizes the system for applications that need high
utilization of sequential memory access. This option is set
to Enabled by default. You can disable this option for
applications that need high utilization of random memory
access.
Enables or disables the hardware prefetcher. This option is set
to Enabled by default.
Enables or disables the LLC Prefetch on all threads. This
option is set to Enabled by default.
Enables or disables the Dead Line LLC Alloc. This option is set
to Enabled by default. You can enable this option to enter the
dead lines in LLC or disable the option to not enter the dead
lines in LLC.
Enables or disables the Directory AtoS. AtoS optimization
reduces remote read latencies for repeat read accesses
without intervening writes. This option is set to Disabled by
default.
Enables or disables x2APIC mode. This option is set to
Enabled by default.
NOTE:
For two processors 64 core configuration, x2APIC
mode is not switchable if 256 threads are enabled (BIOS
settings: All CCD, cores, and logical processors enabled).
NOTE:
x2APIC Mode has a dependency on Virtualization
Technology. x2APIC Mode will take the setting assigned
to Virtualization Technology and cannot be manually
changed.
This option is set to All by default.
Specifies the maximum core frequency of the processor.
Description
Specifies the family, model, and stepping of the processor as
defined by Intel.
Pre-operating system management applications
35
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