I have a Intel Core i3-4150 CPU @ 3.50GHz that typically runs at about 36-40C. I don't know if graphics card matters, but here it is: Intel HD Graphics 4400 (Dell). When I start playing a game (such as World of Warcraft or Rift) for example, I hit about 55C-64C cpu temperature. I'm wondering if that's a safe temperature to operate at. If you need additional details, I'll be glad to provide them.