AM5 Motherboard with good IOMMU groupings

[innovot.io]

Hello, am looking for a good board for IOMMU groupings. I did check out a "ASUS TUF GAMING B650-PLUS AM5" but from research it says the grouping are not fantastic. I've a SATA HBA and a 4 port NIC that will take up a couple of PCI-e slots. Any thoughts on where to start please?

 

[leesteken]

I have no experience with AM5 myself yet but Level1techs is also a good place for information about VFIO: https://forum.level1techs.com/t/am5-iommu-vfio-best-motherboard/189720/19

 

[innovot.io]

Thanks. How about AM4 as can still get good core density etc?

 

[leesteken]

How about AM4 as can still get good core density etc?

Only X570(S) has almost everything in separate groups. X470/X370 have only two PCIe slots and one M.2 for passthrough, and you lose one PCIe slot when using a AM4 CPU with integrated graphics. B550/B450/B350 have only one PCIe slot for passthrough. Lots of older threads about this on this forum.