Have you tried IOMMU splitting? https://forums.unraid.net/topic/72027-iommu-group-splitting-for-pcie-passthrough-no-success-please-help/ https://forums.unraid.

Have you tried IOMMU splitting? https://forums.unraid.net/topic/72027-iommu-group-splitting-for-pcie-passthrough-no-success-please-help/ https://forums.unraid.net/topic/72027-iommu-group-splitting-... (disclaimer - I don't own a board that can do this, I will one day, though).