MSI MS-S0221, Manual

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BIOS Setup MS-S0221 BIOS Setup MS-S0221
ATS Support
Ths settng enables/dsables the ATS (Address Translaton Servce) sup-
port for the Intel IOMMU.
QPI Configuration
Isoc
The Isochronous support controls the lane settngs between the North-
brdge and Southbrdge controllers. Enablng ths opton allows for multple
data streams of equal sze between the Northbrdge and Southbrdge.
QPI Link Speed Mode
Intel QuckPath Interconnect (QPI) s an archtecture whch features hgh-
speed seral lnks for nterconnectons between chps. Ths settng allows
users to adjust the QPI lnk speed, the speed for the data lanes connectng
the CPU and Northbrdge chpset.
QPI Link Frequency Select
Ths settng controls the QuckPath Interconnect clock, the frequency be-
tween the nternal CPU memory controller and the system memory.
QPI Link0s, QPI Link0p, QPI Link1
QuckPath Interconnect offers three power modes, called L0, L0s and L1.
L0 s the mode where QPI wll be fully operatonal. On L0s state the data
wres and the crcuts that drve these wres are turned off for savng energy.
And on L1 everythng s turned off, savng even more energy.
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