Dell Precision 7920 Rack Owner's Manual

The Processor Settings screen details are explained as follows:

Menu Item

Description

Logical Processor

Enables or disables the logical processors and displays the number of logical processors. If the Logical Processor option is set to Enabled, the BIOS displays all the logical processors. If this option is set to Disabled, the BIOS only displays one logical processor per core. By default, the Logical Processor option is set to Enabled.

Virtualization Technology

Enables or disables the additional hardware capabilities provided for virtualization. By default, the Virtualization Technology option is set to Enabled.

Adjacent Cache Line Prefetch

Optimizes the system for applications that require high utilization of sequential memory access. By default, the Adjacent Cache Line Prefetch option is set to Enabled. You can disable this option for applications that require high utilization of random memory access.

Hardware Prefetcher

Enables or disables the hardware prefetcher. By default, the Hardware Prefetcher option is set to Enabled.

DCU Streamer Prefetcher

Allows you to enable or disable the Data Cache Unit (DCU) streamer prefetcher. By default, the DCU Streamer Prefetcher option is set to Enabled.

DCU IP Prefetcher

Enables or disables the Data Cache Unit (DCU) IP prefetcher. By default, the DCU IP Prefetcher option is set to Enabled.

Sub NUMA Cluster

Enables or disables the execute disable memory protection technology. By default, the Execute Disable option is set to Enabled.

Logical Processor Idling

Enables or disables the breaking up the LLC into disjoint clusters based on address range with each cluster bound to a subset the memory controllers. Option is set to Disabled.

Configurable TDP

Allows reconfiguration of Thermal Design Power (TDP) to lower levels.

TDP refers to the maximum amount of power the cooling system is required to dissipate.

The options are Normal (set by default), Level 1 and Level 2

X2Apic Mode

Enables or disables the X2Apic mode.

Dell Controlled Turbo

NOTE:Depending on the number of installed CPUs, there may be up to four processor listings.

Controls the turbo engagement. Enable this option only when System Profile is set to Performance.

Number of Cores per Processor

Controls the number of enabled cores in each processor. By default, the Number of Cores per Processor option is set to All.

Processor Core Speed

Displays the maximum core frequency of the processor.

Processor 1

NOTE:Depending on the number of installed CPUs, there may be up to four processor listings. The following settings are displayed for each processor installed in the system.

Family-Model-Stepping

Displays the family, model and stepping of the processor as defined by Intel.

Brand

Displays the brand name reported by the processor.

Level 2 Cache

Displays the total L2 cache.

Level 3 Cache

Displays the total L3 cache.

Number of Cores

Displays the number of cores per processor.

Processor 2

NOTE:Depending on the number of installed CPUs, there may be up to four processor listings. The following settings are displayed for each processor installed in the system.

Family-Model-Stepping

Displays the family, model and stepping of the processor as defined by Intel.

Brand

Displays the brand name reported by the processor.

Level 2 Cache

Displays the total L2 cache.

Level 3 Cache

Displays the total L3 cache.

Number of Cores

Displays the number of cores per processor.