User Manual
Page 47
It allows you to enable or disable IOMMU. The default value of multiple video controllers. IOMMU Use this feature is [Disabled]. 47 Configuration options: [PCI] and [PCI Express]. The default value of this to select the type of Primary VGA in case of this feature is [PCI Express]. 3.4.2 North Bridge Configuration Primary Graphics Adapter This item will switch the PCI Bus scanning order while searching for video card.
It allows you to enable or disable IOMMU. The default value of multiple video controllers. IOMMU Use this feature is [Disabled]. 47 Configuration options: [PCI] and [PCI Express]. The default value of this to select the type of Primary VGA in case of this feature is [PCI Express]. 3.4.2 North Bridge Configuration Primary Graphics Adapter This item will switch the PCI Bus scanning order while searching for video card.