What is the max temp on full load that this graphics card can handle? Idle I have 35-40C, but at max I have 55-60C with a 35-40% manual fan speed. Is this safe and should I worry? It's been running like this for 4 years playing everything from Skyrim, to Batman Arkham City, always on full load. I just wanted to make sure that I don't burn it out. Thank you, .