Just installed a Noctua NH-D14 push , pull on to a Q9550 and # 3 and 4 cores read , at start up and idle 32 deg. celsius.When loaded they finally wake up , but when unloaded again they settle back down to 32.# 1 and 2 are reading 22 at idle and are fluctuating normally,as I am writing this there at 26.I haven't pulled it off and reseated yet , but will if all else fails.