Yea.. sorry to have to tell this too you buddy.. your radiator isn't going to handle a quad, it is just way too small.. That is your temperature problem right there. To get good temps on a watercooled, overclocked quad you are going to need at least a dual or triple fan radiator. I have a triple radiator and my temperatures get to about 60c with 1.5v, 3.7GHz on my Q6600. It is the only thing in the loop. I would consider getting a better radiator or just going with high end air cooling.