I have the Gigabyte 870A-UD3 motherboard. I would like to put it in SLI with my nVidia GEFORCE GTX 460 2gb. Is it possible? The motherboard says only one PCIe runs at 16x and the other runs at 4x. Is this needed for SLI? In Crossfire for ATI both PCIe 16x is needed, I am not sure about SLI.
Please advice, thank you in advance.
Nope, you cannot SLI with that board.