Boot Performance Mode; Intel(R) Speedstep(Tm); C States; Enhanced C-States - Supermicro C7Z270-CG User Manual

Chapter 4: AMI BIOS

Boot performance mode

This option enables the selection of the default CPU performance during
system boot. The options are Max Battery, Max Non-Turbo Perfor-
mance, and Turbo Performance.

Intel(R) SpeedStep(tm)

Intel SpeedStep Technology allows the system to automatically adjust
processor voltage and core frequency in an effort to reduce power con-
sumption and heat dissipation. Please refer to Intel's web site for
detailed information. The options are Disabled and Enabled.

C States

C-States architecture, a processor power management platform devel-
oped by Intel, can further reduce power consumption from the basic C1
(Halt State) state that blocks clock cycles to the CPU. Select Enabled for
CPU C Sates support. The options are Enabled and Disabled.
*If C States is set to Enabled, the following items are available for con-
figuration.

Enhanced C-states

Select Enabled to enable Enhanced C1 Power State to boost system
performance. The options are Disabled and Enabled.

C-State Auto Demotion

When this item is enabled, the CPU will conditionally demote C State
based on un-cored auto-demote information. The options are Disabled,
C1, C3, and C1 and C3.

C-State Un-demotion

When this item is enabled, the CPU will conditionally undemote from
demoted C3 or C1. The options are Disabled, C1, C3, and C1 and C3.

Package C-State Demotion

This item enables the Package C-State demotion. The options are Dis-
abled and Enabled.

Package C-State Un-Demotion

When this item is enabled, the CPU will conditionally undemote from
demoted Packaged Package C-State Un-Demotion. The options are Dis-
abled and Enabled.
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