Just got a 4770K and it's in a single loop with my 7970. I have it overclocked to 4.5 with vcore of 1.21. At ldle it runs at 45. When I run Intel burn test, it gets to 100 degrees quickly. I'm certain the water block is seated correctly. It's very tight and there is absolutely no looseness to it. I'm using a Koolance 380-I water block with IC7 thermal paste. Any ideas?