BIOS Configuration
42
Intel TurboMode
Technology
(available when Intel EIST
Technology is enabled)
Select Enabled to use the Turbo Mode, which allows the processor to increase
temporarily the speed of a core beyond the CPU’s overall rated speed. The options
are Enabled and Disabled.
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.
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.
C3 State This feature enables you to set the C3 State for the 5000 Series Processor. The
options are Disabled, ACPI 2, and ACPI 3.
C6 State This feature enables you to set the C6 State for the 5000 Series Processor. The
options are Disabled and Enabled.
C1 Auto Demotion When enabled, the CPU conditionally demotes 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 conditionally demotes 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 report processor throttling in the ACPI. The options are Disabled
and Enabled.
DCA Technology
(available when supported
by the CPU)
This feature accelerates the performance of TOE devices. 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 motherboard,
the TOE device is built inside the ESB 2 South Bridge chip. 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 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], and [120].
Table 44. Processor & Clock Options submenu (Continued)
BIOS item Usage
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