Table of Contents
Advertisement
C1E Support
Select Enabled to use the feature of Enhanced Halt State. C1E signifi cantly 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
This feature allows the user to set Processor Idle state for power saving. The op-
tions 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 pack-
age register. The options are Auto, C1, C3, C6 and C7.
C3 State
This feature allows the user to decide how the onboard 5500 Series processor
will act at C3 State. The options are Disabled, ACPI 2 and ACPI 3.
C6 State
This feature allows the user to decide how the onboard 5500 Series processor
will act at C6 State. 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.
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]
7-7
Chapter 7: BIOS
Advertisement
Table of Contents
