yes too high , i idle 30c with my h50 on my i7 oc to 4.3ghz .
SB run cooler too , 52c idle is no good even though your still within the chips safe limits id still be reseating the h70 as your capable of ideling much lower .. are you using stock TIM or as5 or mx2 ? is your pump very tight against your cpu ?
I know its a risk , but i lapped my cpu and my h50 and the temps dropped by quite a fair bit but i know alot of people wouldnt go to that extreme with their brand new SB chip but trust me , its worth it .
Double check your mounting , run a stress test and push on ur pump with a decent amount of force ( not too hard to break something ) if your temps drop from pushing on the pump its your seating .. it has to be 100% tight against your cpu ! also applying the thermal paste is a ***** make sure you did the LINE method and nothing else .
Apply like so .. once you put the pump on it will spread out the TIM in a perfect circle over your HS making perfect coverage .
good luck mate , also fans dont make much difference to your temps so keep that till last and work on your mounting and applying your thermal paste .
depending on your ambients , my rough guestimate is you should be ideling in the 30's and in warmer ambients low 40's .Edited by Xristo - 4/12/11 at 5:24pm