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Processor Settings screen
You can use the Processor Settings screen to view the processor settings and perform specific functions
such as enabling virtualization technology, hardware prefetcher, and logical processor idling.
To view the Processor Settings screen click the System Setup Main Menu → System BIOS → Processor
Settings.
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 displays only one logical processor per core. By default, the
Logical Processor option is set to Enabled.
Alternate RTID (Requestor
Transaction ID) Setting
Enables you to allocate more RTIDs to the remote socket, thereby
increasing cache performance between the sockets or easing work in
normal mode for NUMA. By default, the Alternate RTID (Requestor
Transaction ID) Setting is set to Disabled.
Virtualization Technology Enables or disables the additional hardware capabilities provided for
virtualization. By default, the Virtualization Technology option is set to
Enabled.
Address Translation Service
(ATS)
Defines the Address Translation Cache (ATC) for devices to cache the
DMA transactions. This field provides an interface to a chipset's Address
Translation and Protection Table to translate DMA addresses to host
addresses. By default, the 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.
Execute Disable Enables or disables the execute disable memory protection technology
feature. By default, the Execute Disable option is set to Enabled.
Logical Processor Idling Enables or disables the operating system capability to put logical
processors in the idling state in order to reduce power consumption. By
default, the 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.
X2Apic Mode Enables or disables the X2Apic mode.
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