Supermicro X13DEG-PVC User Manual page 101

Hardware PM State Control

Hardware P-States
If this feature is set to Disable, system hardware will choose a P-state setting for the system based on an OS request.
If this feature is set to Native Mode, hardware will choose a P-state setting based on the OS guidance. If this feature is
set to Native Mode with No Legacy Support, system hardware will choose a P-state setting independently without OS
guidance. The options are Disable, Native Mode, Out of Band Mode, and Native Mode with No Legacy Support.
Frequency Prioritization (Available when the previous item - "Hardware
P-States" is set to "Native Mode with Legacy Support" or using the
Native Mode with No Legacy support)
SST-CP
With Intel Speed Select Technology (Intel SST-CP), surplus frequency is allocated based on the cores' weights. The
weight for each core is assigned by the OS or the Virtual Machine Manager (VMM). The options are Enable and Disable.
CPU C State Control

Enable Monitor MWAIT
Select Enable to support Monitor and Mwait, which are two instructions in Streaming SIMD Extension 3 (SSE3), to improve
synchronization between multiple threads for CPU performance enhancement. The options are Disable, Enable, and Auto.
CPU C1 Demotion
Select Enable to allow the CPU to automatically demote to C1 State. The options are Disable and Enable. Please reboot
the system for the change(s) you've made to take effect.
CPU C6 Report
Select Enable 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 cache is turned off. The options are Disable, Enable, and Auto.
Enhanced Halt State (C1E)
Select Enable to enable "Enhanced Halt State" support, which will significantly reduce the CPU's power consumption by
minimizing CPU's clock cycles and reduce voltage during a "Halt State". The options are Disable and Enable.
Package C State Control
Package C State
Use this feature to optimize and reduce CPU package power consumption in the idle mode. Please note that the changes
you've made in this setting will affect all CPU cores or the circuits of the entire system. The options are C0/C1 state, C2
state, C6 (non Retention) state, C6 (Retention) state, No Limit, and Auto.
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Chapter 4: UEFI BIOS