I've used this computer for about 2 years now. I never over-clocked any part of the system. It was always placed in a open space and I kept my room around 67 in the summer and never really turned on the heat in the winter. It runs internally around 45 C with games on high/ultra and while idle/surfing the internet it stands around 37C. If you are interested give me a shout. If you want to see any pictures I will include a link of about 4-5 pictures in your e-mail. Thanks! It's a very clean,neat,professional install!Here are all the specs