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Chapter 4: AMI BIOS
P-state Coordination
Use this item to configure the processor's P-State coordination settings. During
a P-State, the voltage and frequency of the processor will be reduced when it is
in operation. This makes the processor more energy efficient, resulting in further
energy gains. The options are HW_ALL, SW_ALL and SW-ANY.
CPU C State Control
Package C State limit
Use this item to set the limit on the C-State package register. The options are
C0/1 state, C2 state, C6 (non-Retention) state, and C6 (Retention) state.
CPU C3 Report
Select Enable 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 Enable and Disable.
CPU C6 Report (Available when Power Technology is set to Custom)
Select Enable to allow the BIOS to report the CPU C6 state (ACPI C3) to the
operating system. During the CPU C6 state, power to all caches is turned off.
The options are Enable and Disable.
Enhanced Halt State (C1E)
Select Enabled to enable "Enhanced Halt State" support, which will significantly
reduce the CPU's power consumption by minimizing CPU's clock cycles and volt-
age use during a "Halt State." The options are Disable and Enable.
CPU T State Control
ACPI (Advanced Configuration Power Interface) T-States
If this item is set to Enable, CPU throttling will be supported by the operating
system to reduce power consumption. The options are Enable and Disable.
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