I own one of the E3's, but not that to be specific.
If I am not mistaken, these are server CPU's. Why are you looking to OC them?
With these CPU's, you must get a board that will support that specific CPU - as with these, it is not "good enough" just to fit in the socket.
Most of the boards that will accept them, are server boards, and most do not OC on standard BIOS.