okay I am doing early research on this as i will not do this upgrade for a while. I have a 2.8 quad 2010 I am putting in a hex core late 2011 or spring of 2012. where to buy just the hex core and the exact part number ? second any noise on a hex 3.6 ? or a hex 3.2 that would work. even a 3.8? my goal on this mac pro is to make it have ; 1)a hex core 3.33ghz 2) 2 intel gen3 600gb ssd in raid0 optical bay 3) 4 3tb hhds 4) 12gb ram. remember I am more of a dedicated hobbyist. so the ram becomes less important to me.