Hardware.Info posted Benefit of OC Socket on ASUS' X99 motherboards proven
A quote from the article:
Back in our launch review of fifteen Intel X99 motherboards for Haswell-E processors we weren't entirely sure about the purpose of ASUS' OC Socket, which contains more pins than the sockets other manufacturers incorporate in their boards. Haswell-E processors do indeed have more than 2011 contact points, a number of which are not actually used in the official socket.Benefit of OC Socket on ASUS' X99 motherboards proven @ Hardware.Info