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
(Requestor
Transaction ID)
Setting
Modifies Requestor Transaction IDs, which are QPI resources. This option is set to
Disabled
by default.
NOTE: Enabling this option may negatively impact the overall system
performance.
Virtualization
Technology
Enables or disables the additional hardware capabilities provided for virtualization.
This option is set to
Enabled
by default.
Address
Translation
Service (ATS)
Defines the Address Translation Cache (ATC) for devices to cache the DMA
transactions. This option provides an interface between CPU and DMA Memory
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
Line Prefetch
Optimizes the system for applications that need high utilization of sequential
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
Prefetcher
Enables or disables the hardware prefetcher. This option is set to
Enabled
by
default.
DCU Streamer
Prefetcher
Enables or disables the Data Cache Unit (DCU) streamer prefetcher. This option is
set to
Enabled
by default.
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