Table 40. Processor Settings details(continued)
Option Description
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.
AVX P1 Enables you to reconfigure the processor Thermal Design Power
(TDP) levels during POST based on the power and thermal
delivery capabilities of the system. TDP verifies the maximum
heat the cooling system is must dissipate. This option is set to
Normal by default.
NOTE: This option is only available on certain stock keeping
units (SKUs) of the processors.
Intel SST-BF Enables Intel SST-BF. This option is displayed if Performance Per
Watt (operating system) or Custom (when OSPM is enabled)
system profiles are selected. This option is set to Disabled by
default.
Intel SST-CP Enables Intel SST-CP. This option is displayed if Performance
Per Watt (operating system) or Custom (when OSPM is
enabled) system profiles are selected. This option is displayed
and selectable for each system profile mode. 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 cores configuration, x2APIC
mode is not switchable if 256 threads are enabled (BIOS
settings: All CCD, cores, and logical processors enabled).
AVX ICCP Pre-Grant License Enables or disables AVX ICCP Pre-Grant License. This option is
set to Disabled by default.
Opportunistic Snoop Broadcast Opportunistic Snoop Broadcast (OSB) is a feature within the
PCIe protocol that enhances system performance by reducing
latency and improving data transfer efficiency. Auto is the
default and is controlled by SI Compatibility and Directory Mode
Enable/Disable.
Dell Controlled Turbo
Dell Controlled Turbo Settings Controls the turbo engagement. Enable this option only when
System Profile is set to Performance or Custom, and CPU
Power Management is set to Performance. This item can be
selected for each system profile mode. This option is set to
Disabled by default.
NOTE: Depending on the number of installed processors,
there might be up to two processor listings.
Dell AVX Scaling Technology Enables you to configure the Dell AVX scaling technology. This
option is set to 0 by default. Enter the value from 0 to 12
bins. The value that is entered decreases the Dell AVX Scaling
Technology frequency when the Dell-controlled Turbo feature is
enabled.
Number of Cores per Processor Controls the number of enabled cores in each processor. This
option is set to All by default.
CPU Physical Address Limit Limit CPU physical address to 46 bits to support older Hyper-V.
If enabled, automatically disables TME-MT. This option is set to
Enabled by default.
AMP Prefetch This option enables one of the Mid-Level Cache (MLC) AMP
hardware Prefetcher. This option is set to Disabled by default.
44 Pre-operating system management applications
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