thanks for the quick reply...
I use Real Temp (latest) to check temp.
I also think is very very strange.
The thermal paste is the intel one, never touched it.
I remember something now:
I bought hardware (cpu-MB etc...) last june.
First motherboard sent me, was damaged.
I sent it back and they gave me a new one.
In this way i assembled the cpu twice..on the first (damaged) and the second working one.
I never though to replace the thermal paste, as the cpu and fan were tha same.
Is it possible that by doing this the paste is not homogeneusly "spalmed"??
That could maybe explain...even if it sounds strange...