i've never messed around with pci-e at all. haven't even touched one. so, my question is how do u get TRUE 16x pci-e? i've seen mb's that state dual 16x and dual true 16x. what's the difference? also, what is or even why do u need 1x pci-e? sounds like a waste of money. when getting a pci-e mb with 16x pci-e why would u want 1x slots, 4x slots, or even 8x slots on ur mb? is pci-e plug in play? just install 2 exact cards on the mb then link them on top of cards and it auto recognizes both cards and ur running sli?