Table 15. 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 only displays 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 usage 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 usage 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.
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.
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 64-bit Support
Specifies if the processor(s) support 64-bit extensions.
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