Processor Settings Screen - Dell PowerEdge R420xr Owner's Manual

Menu Item Description
Node Interleaving If this field is Enabled, memory interleaving is supported if a symmetric memory
configuration is installed. If Disabled, the system supports Non-Uniform Memory
architecture (NUMA) (asymmetric) memory configurations. By default, Node
Interleaving option is set to Disabled.

Processor Settings Screen

Menu Item Description
Logical Processor Allows you to enable or disable logical processors and display 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.
QPI Speed Allows you to set the QuickPath Interconnect (QPI) data rate settings. By default,
the QPI Speed option is set to Maximum data rate.
Alternate RTID Allows you to allocate more RTIDs to the remote socket, increasing cache
(Requestor performance between the sockets or work in normal mode for NUMA. By default,
Transaction ID) the Alternate RTID (Requestor Transaction ID) Setting is set to Disabled.
Setting
Virtualization Allows you to enable or disable the additional hardware capabilities provided for
Technology virtualization. By default, the Virtualization Technology option is set to Enabled.
Adjacent Cache Allows you to optimize the system for applications that require high utilization of
Line Prefetch 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 Allows you to enable or disable the hardware prefetcher. By default, the Hardware
Prefetcher Prefetcher option is set to Enabled.
DCU Streamer Allows you to enable or disable the Data Cache Unit (DCU) streamer prefetcher. By
Prefetcher default, the DCU Streamer Prefetcher option is set to Enabled.
DCU IP Prefetcher Allows you to enable or disable the Data Cache Unit (DCU) IP prefetcher. By
default, the DCU IP Prefetcher option is set to Enabled.
Execute Disable Allows you enable or disable execute disable memory protection technology. By
default, the Execute Disable option is set to Enabled.
NOTE: The Memory Operating Mode can have different defaults and available
options based on the memory configuration.
NOTE: The Dell Fault Resilient Mode establishes an area of memory that is
fault resilient. This mode can be used by an operating system that supports the
feature to load critical applications or enables the operating system kernel to
maximize system availability.
NOTE: QPI Speed displays only when both the processors are installed.
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