Biostar A320MD PRO Bios User Manual - North Bridge
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32 | 3. Chipset Menu
North Bridge
IOMMU
This item enables or disables IOMMU support.
Options: Disabled (Default) / Enabled
GFX Configuration
PSPP Policy
This item allows you to set PCIe speed power policy.
Options: Balanced-High (Default) / Disabled / Performance / Balanced-Low / Power Saving /
Auto