I got the ip35-e with a tuniq tower and lapped e6600 still not 100% flat tho. Right now orthos stable for 2hrs 3600mhz 1.425 vcore. Load temps are around 54-57c i was running 3700 but its not stable now for some reason need to play with it more but @ 3700 my loads hit 58-59c i like 56c better.