My CPU is an R5 2400G and I have a MSI x470 Gaming Plus motherboard with 24GB of RAM
So I see in my BIOS I can allocate the 8 lanes of PCIe into x4 and x4 which would allow me to activate the second slot.
So I know Radeon are not so picky over lanes like the rival and I am waiting on a RX 480 8GB and I was pondering a second card for cfx
eventually I will get a new CPU for the rig but until then this what I have