Supero C7X58, Руководство пользователя

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4-8
X8SAX/C7X58 User’s Manual
C1E Support
Select Enabled to use the "Enhanced Halt State" feature. 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 .
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
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.
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 net-
work 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 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]