Dell PowerEdge R630 Owner's Manual page 63

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Processor Settings
Processor Settings details
Processor Settings details
The Processor Settings screen details are explained as follows:
Option Description
Logical Processor Enables or disables the logical processors and displays the number of 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.
QPI Speed Enables you to control QuickPath Interconnect data rate settings.
Alternate RTID Modifies Requestor Transaction IDs, which are QPI resources. This option is set to
(Requestor Disabled by default.
Transaction ID)
Setting
Virtualization Enables or disables the additional hardware capabilities provided for virtualization.
Technology This option is set to Enabled by default.
Address Defines the Address Translation Cache (ATC) for devices to cache the DMA
Translation transactions. This option provides an interface between CPU and DMA Memory
Service (ATS) Management to a chipset's Address Translation and Protection Table to translate
DMA addresses to host addresses. This option is set to Enabled by default.
Adjacent Cache Optimizes the system for applications that need high utilization of sequential
Line Prefetch 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 Enables or disables the hardware prefetcher. This option is set to Enabled by
Prefetcher default.
DCU Streamer Enables or disables the Data Cache Unit (DCU) streamer prefetcher. This option is
Prefetcher set to Enabled by default.
DCU IP Prefetcher Enables or disables the Data Cache Unit (DCU) IP prefetcher. This option is set to
Enabled by default.
Logical Processor Enables you to improve the energy efficiency of a system. It uses the operating
Idling system core parking algorithm and parks some of the logical processors in the
system which in turn allows the corresponding processor cores to transition into a
lower power idle state. This option can only be enabled if the operating system
supports it. It is set to Disabled by default.
Configurable TDP 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 needed to dissipate. This
option is set to Nominal by default.
X2Apic Mode Enables or disables the X2Apic mode.
Dell Controlled Controls the turbo engagement. Enable this option only when System Profile is set
Turbo to Performance.
NOTE: Enabling this option may negatively impact the overall system
performance.
NOTE: This option is only available on certain stock keeping units (SKUs) of the
processors.
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