Sory. I forgot write down temp.
Before overclocing the temps were:
In windows: 52 in games (after couple hours): max 69
Now the temps are:
In windows: 42 in games (after couple hours): max 61
It's a safe temperature. Don't worry about it.
Fan speed control guide, if you don't like the noise of it constantly running:http://www.vaguesoft.com/users/dwood/blog/tutorials/rivatuner/