Supermicro X8DTL-I User Manual download pdf (Page 70)

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X8DTL-3/X8DTL-i/X8DTL-3F/X8DTL-iF User's Manual

C1 Auto Demotion

When this feature is enabled, the CPU will conditionally demote C3, C6 or C7 re-

quests to C1 based on un-core auto-demote information. The options are Enabled

and Disabled.

C3 Auto Demotion

When this feature is enabled, the CPU will conditionally demote C6 or C7 requests

to C3 based on un-core auto-demote information. The options are Enabled and

Disabled.

ACPI T State

Select Enabled to report CPU throttling state in ACPI. The options are Enabled

and Disabled.

DCA Technology

This feature accelerates the performance of TOE devices. Note: A TOE device is

a specialized, 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 moth-

erboard, the TOE device is built inside the ESB 2 South Bridge chip. This feature

is supported only by some types of processors (i.e., Intel Nehalem-WS 1S). 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 efﬁ ciency. Prefetching too fre-

quently 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 & IMC Conﬁ guration

QPI Links Speed

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

Speed.

QPI Frequency

This selects the desired QPI frequency. The options are Auto, 4.800 GT, 5.866GT,

6.400 GT.

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Supermicro X8DTL-I User Manual Page 70