They don't... And actually, they sell almost exclusively all Intel surplus---- oddly enough, Intel never made a quad v3 board-- at least not one that I have been able to find on ark.
I actually have a a server with an S4600LT2 with e5-4650v1's-- and while you could use it to make coffee, it's insanely fast, even by v1 standards. Cooling and noise-- definitely not a living room sort of machine. The case is a 2u and the way the risers and PSUs fit together is really quite impressive. (It's got 13 or 14 dual rotor fans-- bootup is like being on the airport tarmac.)