Its nothing to do with Micron or samsung, its to do with dirty signalling on the board. i just tested my 1333EB Micron based kit on the P5E3 Premium 8-8-8-27 1.83V 1800MHZ, rock solid stable yet they struggle to do 1333 on the P5Q3.

Its NOT the ram and its nothing to do with OCZ sucking, its all about the board this time. if you go reading reviews they are all done with 2x1GB modules, if you go read user experience with 2x2GB modules they all suck.

You are better off buying the P5E3 Deluxe X38 over this POS, Asus make good solid boards, this board is a one off for sure, fact is though its VERY bad.