Good to hear that stabilized it. I used to have a Silent square and even lapped my e6300 was pushing 76*C in prime. even a TRUE would bring them down 10 - 20*C, you should be mid to high 70's with that voltage. Hope the watercooling helps, I can't read japanese but that appears to be a small kit, have you read any reviews on it? Petra's Tech Shop is a great place for all your watercooling needs if you want to try and get something more hardcore.