@RunawayPrisoner: sorry to name you again, but do know i dont have anything against you, just really want to clarify some info.
Is there any possibility that Intel made the table that you are mentioning(2.3) for 2664MHz and the other one(2.2) for as a general information?
So basically 1.1vtt is enough for 8x333.
I'm currently running 1.347vcore(idle) and 1.332vtt(idle) for 3.55GHz in my Q9450 and after what you are saying i'm slowly/quickly killing my cpu. But my temps never go higher than 60degrees with a TRUE w Scythe S-Flex 1600rpm fans in push-pull. I'm tempted to go as high as 1.375 with the vcore and 1.35 with the vtt so see if i can reach 3.6.
I saw people shoving more than 1.4volts vcore in their duals. Also the anandtech dudes put their vtt at 1.45 which is pretty much near the absolute maximum rating, if not over when their board overvolts.