Supermicro SUPERO X8ST3-F, User Manual

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X8ST3-F/X8STE User’s Manual
C3 Auto Demotion
When enabled, the CPU will conditionally demote C6 or C7 requests to C3 based on un-core
auto-demote information. The options are Disabled and
Enabled.
ACPI T State
This feature Enables the ACPI throttling support for the processor to save power.
The options are
Disabled and Enabled .
DCA Technology
This feature accelerates the performance of TOE devices. Note : A TOE device is a special-
ized, dedicated processor that is installed on an add-on card or a network card to handle
some or all packet processing of this add-on card. For this motherboard, the TOE device is
built inside the ESB 2 South Bridge chip. This feature is supported only by some types of
processors. The options are
Enabled and Disabled.
DCA Prefetch Delay
A DCA Prefetch is used with TOE components to prefetch data in order to shorten execution
cycles and maximize data processing efficiency. Prefetching too frequently can saturate the
cache directory and delay necessary cache accesses. This feature reduces or increases the
frequency the system prefetches data. The options are [8], [16],
[32] , [40], [48], [56], [64],
[72], [80], [88], [96], [104], [112], [120]

Advanced Chipset Control
The items included in the Advanced Settings submenu are listed below.

QPI and IMC Configuration
QuickPath Interconnect (QPI) is the connection between the CPU and the motherboard's
I/O hub. Use this feature to modify speed and power management settings.
QPI Links Speed
Use this feature to select QPI data transfer speed. The options are Slow-
mode, and
Full Speed
.
QPI Frequency
Use this option to set the QPI frequency. The options are Auto , 4.800 GT,
5.866 GT, and 6.400 GT.
QPI L0s and L1
QuickPath Interconnect (QPI) offers three power states called L0, L0s and
L1:
L0 is a normal operational state where data and control packets can be
transmitted and received. All power management states are entered from
this state.