Hi I have an amd athlon x4 860k inside my pc but I just cant figure out why its over heating all the time on idle with nothing running it was at this temp on speccy going in between 74 and 84 but when I play a game it goes up to around 90 I have even seen it say 100 before. I have a small room but my window is always wide open so my pc always a a cold flow of air coming through. Please help.
Those temperatures are definitely high.
It could be the fan is not working properly or may require to be reseated with new thermal paste.