User`s manual
4-8
X8SAX/C7X58
C-State package limit setting
If set to Auto, the AMI BIOS will automatically set the limit on the C-State package register.
The options are Auto, C1, C3, C6 and C7.
C1 Auto Demotion
When enabled, the CPU will conditionally demote C3, C6 or C7 requests to C1 based on
un-core auto-demote information. The options are Disabled and Enabled.
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 efciency. 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.
QPIandIMCConguration
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.