User manual

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4.4.2 North Bridge Conguration
IOMMU
This allows you to enable or disable IOMMU support.
Primary Graphics Adapter
This item will switch the PCI Bus scanning order while searching for video
card. It allows you to select the type of Primary VGAin case of multiple
video controllers. The default value of this feature is [PCI Express]. Con-
gurationoptions:[Onboard],[PCI]and[PCIExpress].
Share Memory
This allows you to set the share memory feature. The default value is [Auto].
Congurationoptions:[Auto],[32MB],[64MB],[128MB],[256MB][512MB],
[1GB] and [2GB].
Onboard HDMI HD Audio
This allows you to enable or disable the “Onboard HDMI HD Audio” fea-
ture.
Dual Graphics
This item appears only when you install AMD RADEON graphics card on
this motherboard. Use this to enable or disable Dual Graphics feature. If
youenablethisoption,theprimarymonitorwillbeonboardVGA.Ifyouse-
lect [Auto], Dual Graphics function will be automatically enabled when you
install AMD RADEON graphics card. The default value is [Auto].
DVI Function
UsethistoselectDVIfunctionwhenyouinstalltheDVItoHDMIadapter
toDVIport.Congurationoptions:[asDualLinkDVI]and[asHDMI].Ifyou
select[asDualLinkDVI],youcanuseDualLinkDVImonitorwithoutau-
dio function. If you select [as HDMI], you can use HDMI monitor with audio
function.Thedefaultvalueis[asDualLinkDVI].