This board will overclock my Sandy Bridge CPU just fine right?
Main question... if I'm running my Sandy Bridge CPU, on this board, with SLI 680s, what PCI-E version and speeds will they be running at sitting in the 2x PCI-E 3.0 slots? Will they be running PCI-E 2.0 x16/x16? 2.0 x8/x8? PCI-E 3.0 x8/x8?
Yes on the ability to OC (I think...) and seeing as you have a SB CPU then you are limited to PCIe 2.0. I believe that board runs 16x/4x, unless you have something in those slots then it will be 16x/2x.