intel 1st gen

Will my Intel DH55PJ motherboard support Xeon X3450 ? It supports all Xeon X34xx CPU's but i can't find the Xeon X3450 in mobo support list: Source Also I saw some forums that my mobo can oc but i cant see the oc settings in the BIOS, why is that? He uses the same board with oc and a Xeon...