To view the
Processor Settings screen, power on the system, press F2, and click
System Setup Main Menu > System BIOS > Processor Settings.
Table 1. Processor Settings detailsThis table provides the details of the options available on the
Processor Settings screen.
Option
Description
Logical Processor
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.
Virtualization Technology
Enables or disables the virtualization technology for the processor. This option is set to Enabled by default.
Kernel DMA Protection
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.
Adjacent Cache Line Prefetch
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.
Hardware Prefetcher
Enables or disables the hardware prefetcher. This option is set to
Enabled by default.
LLC Prefetch
Enables or disables the LLC Prefetch on all threads. This option is set to
Enabled by default.
Dead Line LLC Alloc
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.
Directory AtoS
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.
x2APIC Mode
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.
Number of Cores per Processor
This option is set to
All by default.
Processor Core Speed
Specifies the maximum core frequency of the processor.
Table 2. Processor detailsThis table describes the settings available for each processor.
Option
Description
Family-Model-Stepping
Specifies the family, model, and stepping of the processor as defined by Intel.