SUPER MICRO Computer 1.2b user manual Advanced Chipset Control, CPU Bridge Configuration

X8DAH+/X8DAH+-F/X8DAH+(-F)-LR User's Manual

C1E Support

Select Enabled to support Enhanced Halt State. C1E significantly reduces the CPU's power consumption by reducing the CPU's clock cycle and voltage during a "Halt State." The options are Disabled and Enabled.

Intel® C-STATE Tech

If enabled, C-State is set by the system automatically to either C2, C3 or C4 state. The options are Disabled and Enabled.

C-State package limit setting (Available when Intel® C-State Tech is enabled)

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

If this feature is 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

If this item is set to 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

Select Enabled to allow the BIOS to report processor throttling in ACPI. The options are Enabled and Disabled.

Advanced Chipset Control

The items included in the Advanced Settings submenu are listed below:

CPU Bridge Configuration

Request Transaction ID

This feature is used to determine how a QPI Transaction ID is initiated. The options are Balanced and IO Biased.

QPI Links Speed

This feature selects QPI's data transfer speed. The options are Slow-mode, and Full Speed.

4-8