Any B550/X570 boards with a second PCIe slot controlled by CPU? (not chipset)

[Beany]

I'm looking for B550 or X570 boards that do NOT use the chipset for the second PCIe slot and instead uses the CPU PCIe lanes.
This is a requirement for my capture card. It will be used with a Ryzen 3600.

I'd prefer a B550 board because i'm looking for as cheap as possible, but if X570 boards only have this option then i'll go with one of those.

Any suggestions?

[Beany]

What about the ROG Strix B550-E Gaming? It says:

2 x PCIe 4.0 x16 (x16 or dual x8)
AMD B550 Chipset
1 x PCIe 3.0 x16 (x4 mode) *
2 x PCIe 3.0 x1


So would a GPU at x8 speed and x4 capture card definitely work on the CPU's PCIe lanes? Anyone here have this board?

[RedSector73]

Any B550 or X570.... none of them use chipset for second PCIe.

Here try reading this and see if helps you out, I know its a lot to get your head around at the start and can be confusing
https://www.gamersnexus.net/news-pc/...mparison-specs

Also, PCIe Gen 4 specification is quite bandwidth upgrade over PCIe Gen 3.0 specification.
https://imgur.com/I9voCxU

X570 has more of everything and is a great overkill/future position.

Hope you find this helpful.