I was looking at buying 2 graphics cards later in the future. And the PCI E 3.0 says" PCI Express 3.0 x16 2 (x16/0 or x8/x8)" does this mean I can put in 2 PCI 3.0 cards with x16? I will post links to graphics card and motherboard.
it means I believe that there are two lanes but if one is occupied it will work as X16 if two are occupied it will work as X8 for both.
But I would wait until someone with more knowledge comments on this lol