Yep xd, its not offensive.
The fan is plugged and spining at max rpm and yes, i wipe the old paste.
By the way, the cpu is running at 4,4, maybe temps should be checked with the turbo off, at 4,0?
Also, the 4th core is always 10-15 ºC cooler than the others. I think iits not a normal difference between core temps.