Dell SD7000-S Owner's Manual page 35

Option Description
Snoop Mode Specifies the Snoop Mode options. The Snoop Mode options available are Home
Snoop, Early Snoop, and Cluster on Die. This option is set to Early Snoop by
default. This field is available only when the Node Interleaving is set to Disabled.
Processor Settings
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.
Viewing Processor Settings
To view the Processor Settings screen, perform the following steps:
1. Turn on, or restart your system.
2. Press F2 immediately after you see the following message:
F2 = System Setup
NOTE: If your operating system begins to load before you press F2, wait for the system to finish
booting, and then restart your system and try again.
3. On the System Setup Main Menu screen, click System BIOS.
4. On the System BIOS screen, click Processor Settings.
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.
NOTE: Enabling this option may negatively impact the overall system
performance.
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