Thanks, hiroshige!
Funny! The CoreTemp shows a temperature about 5-10°C LOWER than SpeedFan!
So, whom do I trust now?!
Anyways! I stumbled upon an other thread in this forum, where some else had a similar problem!
I've used the Arctic Silver as TC and have spread that thick stuff all over the CPU before I mounted the cooler. I don't think this is the issue.
But just to make sure, I'll take the whole thing apart and double check everything!
Is the TC you guys supply better than this Arctic Silver stuff?
Oh... waaaaait!
I've got something else in mind, when I look at my cooler in my case now..... in what direction should the heatpipes look? I remember to have read something on an other website about that the heatpipes should always be pointing up or down.... Would this matter, if the heatpipes where sideways?
I mounted them sideways so it would be easier to mount the cooler.
Damn, I feel silly now..... unless you tell me it won't matter.
EDIT:
Ok, I rotated the heatsink 90°.
Nothing changed! Except the idle temperature went up a bit ... maybe because it got warmer in my office. I feels like it got warmer....
I also felt the base of the heatsink and it's cool to the touch!!! WTF?!