Cpu C States - Supermicro Supero C7Z97-M User Manual

Supermicro C7Z97-M Series Motherboard User's Manual

CPU 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 this
feature is set to Enabled, the following items will display:
Enhanced C1 State
(Available when "CPU C States" is set to Enabled)
Select Enabled to enable Enhanced C1 Power State to boost system
performance. The options are Enabled and Disabled.
CPU C3 Report
(Available when "CPU C States" is set to Enabled)
Select Enabled to allow the BIOS to report the CPU C3 State (ACPI
C2) to the operating system. During the CPU C3 State, the CPU clock
generator is turned off. The options are Enabled and Disabled.
CPU C6 Report
(Available when "CPU C States" is set to Enabled)
Select Enabled to allow the BIOS to report the CPU C6 State (ACPI
C3) to the operating system. During the CPU C6 State, the power to
all caches is turned off. The options are Enabled and Disabled.
C6 Latency
(Available when "CPU C States" is set to Enabled)
Select Short to set a short delay time(period) during which the
BIOS reports CPU C6 State (ACPI C3) to the operating system.
Select Long to set a long delay time(period) during which the
BIOS reports CPU C6 State (ACPI C3) to the operating system.
The options are Short and Long.
CPU C7 Report
(Available when "CPU C States" is set to Enabled)
Select Enabled to allow the BIOS to report the CPU C7 State (ACPI
C3) to the operating system. CPU C7 State is a processor-specific low
C-State. The options are Disabled, CPU C7, and CPU C7s.
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