Quote Originally Posted by Ooshima View Post
Does not need to support SLI. As long as your mobo have at least a 2nd PCI-E 3.0 slot that supports at least x8 speed then you can plug there and try.
From my research, before exchanging my mobo, only SLI boards do have 2nd PCI-E x16 slot connected with 8 lanes.

On boards without SLI (also that ones supporting Crossfire) do only have 4 lanes at the second slot.

There is a way to modify the driver to activate SLI. But the 4 lanes connection of the second card is very noticeable.