Hey Tam,
I have also OCZ3P1600EB4GK memory, but I'm not able to put my system to 1600 FSB :-(
I would like to ask you if your memory worked for you on 1st time? Just inserted, switched settings and everything was OK?
And is your memory in blue or black sockets?
Also what is the result of Prime?

I used same settings as you, but I get ramdom reboots and with exactly same settings I'm not able to pass memtest. Right now I'm solving it with OCZ tech support and it seems that one module is faulty.