Or you have this one for 2011-V3, that supports 4x SODIMM and PCIe-16x: http://asrockrack.com/general/productdetail.asp?Model=EPC612D4I#Specifications
Sorry to bump. It seems this board only supports e5, not e3?
I'm looking for something with a high clock, so I was thinking e3 1275 v6. Maybe this supports e3 but just doesn't list it?
Although, maybe those e5s can clock as high or higher than the e3? Something comparable in price and performance to a 7700k (maybe not as fast, but close).