Which b660 board is it specifically?

Why not just drop a cpu into your existing board?

Ah ok, glad to hear that. The official spec page still says 3.0 only and I remember them having 3 z690 itx revisions, the vanilla aorus ultra that was soft recalled, the ultra lite which was pcie 3.0 and the ultra plus which had the 4.0 working and fixed. I guess they should update their site info or something then.

Pretty sure the ultra lite version is just the original batch of busted boards with the pcie slot set to 3.0 in the bios out of the factory. There’s another different revision that has it actually working at 4.0 speeds.