Supermicro X13DEG-QT User Manual page 108

Super X13DEG-QT User's Manual
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 "Power Technology" is set to
Custom, "Hardware P-states" is set to Native Mode or Native Mode with
No Legacy Support, and when your processor supports Intel SST-CP)
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 Auto Demotion
Enable this feature to allow CPU to automatically demote to the C1 state. Reboot the
system for the change to take effect. The options are Disable and Enable.
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. (ACPI is the abbreviation for Advanced Configuration and
Power Interface.)
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.
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