MSI 990XA User Guide - Page 52

BIOS Setup, CPU Features, Press <Enter> to enter the sub-menu., support Enhanced Halt state

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BIOS Setup ▶ CPU Features Press to enter the sub-menu. ▶ AMD Cool'n'Quiet The Cool'n'Quiet technology can effectively and dynamically lower CPU speed and power consumption. Important To ensure that Cool'n'Quiet function is activated and will be working properly, it is required to double confirm that: • Run BIOS Setup, and select Cell Menu. Under Cell Menu, find AMD Cool'n'Quiet, and set this item to "Enabled". • Enter Windows, and select [Start]->[Settings]->[Control Panel]->[Power Options]. Enter Power Options Properties tag, and select Minimal Power Management under Power schemes. ▶ C1E Enable this item to reduce the CPU power consumption while idle. Not all processors support Enhanced Halt state (C1E). ▶ SVM Mode This item allows you to enable/disable the AMD SVM (Secure Virtual Machine) Mode. ▶ IOMMU Mode This item allows you to enable/disable the IOMMU (I/O Memory Management Unit) for I/O virtualization. ▶ HT Link Control Press to enter the sub-menu. ▶ HT Incoming/ Outgoing Link Width These items allow you to set the Hyper-Transport Link width. Setting to [Auto], the system will detect the HT link width automatically. 3-16

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3-16
BIOS Setup
CPU Features
Press <Enter> to enter the sub-menu.
AMD Cool’n’Qu±et
The Cool’n’Qu±et technology can effect±vely and dynam±cally lower CPU speed and
power consumpt±on.
Important
To ensure that Cool’n’Qu±et funct±on ±s act±vated and w±ll be work±ng properly, ±t ±s
requ±red to double confirm that:
Run BIOS Setup, and select Cell Menu. Under
Cell Menu, find
AMD Cool’n’Qu±et,
and set th±s ±tem to “Enabled”.
Enter W±ndows, and select [Start]->[Sett±ngs]->[Control Panel]->[Power Opt±ons].
Enter
Power Opt±ons Propert±es tag, and select
M±n±mal Power Management under
Power schemes.
C1E
Enable th±s ±tem to reduce the CPU power consumpt±on wh±le ±dle. Not all processors
support Enhanced Halt state (C1E).
SVM Mode
Th±s ±tem allows you to enable/d±sable the AMD SVM (Secure V±rtual Mach±ne)
Mode.
IOMMU Mode
Th±s ±tem allows you to enable/d±sable the IOMMU (I/O Memory Management Un±t)
for I/O v±rtual±zat±on.
HT L±nk Control
Press <Enter> to enter the sub-menu.
HT Incom±ng/ Outgo±ng L±nk W±dth
These ±tems allow you to set the Hyper-Transport L±nk w±dth. Sett±ng to [Auto], the
system w±ll detect the HT l±nk w±dth automat±cally.
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