- Joined
- 8 Nov 2006
- Posts
- 424
- Location
- Scotland
Both X570 and B550 will run the primary m.2 as PCIe gen 4.0, X570 will run the 2nd m.2 also as gen 4.0 but B550 will run it at gen 3.0.
Some B550s like the unify X also have an option to use lanes from the GPU to run a couple more M.2 slots as gen 4.0 and this cuts the GPU down to x8 but you don't have to do that and can just run the other M.2 slots at gen 3.0 and keep the GPU at X16.
So if you wanted to run 1 gen 4 and 1 gen 3 drive you would select chipset mode and use the gen 4.0 drive in M2_1 and the gen 3.0 drive in M2_4 for them both to run at full speed while also keeping the GPU at X16
Amazing, thanks, exactly what I was looking for.