I am from argentina, sorry for my english.
I have too a q6600 ~3ghz vcrore 1.28v temperature idle 25 °C, full load 55°C cooler termalteck V1.
I push the cpu to 3.4 ghz with a voltage 1.41v the temperaute in prime is 77°C, is stable.
Remember, prime is a torture test, and in the daily life that never hapen.
if your cpu is stable at that temperature then you can live with them.
to be safe, always check