MSI 970 User Manual page 72

▶ AMD Cool'n'Quiet [Auto]
Enabled or disabled AMD Cool'n'Quiet function.
[Auto] Depends on AMD Design.
[Enable] Enables AMD Cool'n'Quiet function. The Cool'n'Quiet technology
can effectively and dynamically lower CPU speed and power
consumption.
[Disabled] Disables this function.
Important
When adjusting CPU Ratio, the Cool'n'Quiet function will be disabled automatically.
For CPU which supports the Turbo Core Tech., please set AMD Turbo Core
Technology and AMD Cool'n'Quiet as Disabled to retain the default CPU core speed.
▶ C1E Support
Enables this item to reduce the CPU power consumption while idle. Not all
processors support Enhanced Halt state (C1E).
▶ SVM Mode [Enabled]
Enables or disables CPU Virtualization.
[Enabled] Enables CPU Virtualization and allows a platform to run multiple
operating systems in independent partitions. The system can
function as multiple systems virtually.
[Disabled] Disables this function.
▶ IOMMU Mode
Enables/disables the IOMMU (I/O Memory Management Unit) for I/O Virtualization.
BIOS Setup 3-16