Dell R420xr owner manual Processor Settings Screen

Menu Item Description

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.

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.
	NOTE: QPI Speed displays only when both the processors are installed.
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.

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