Try running prime 95 and Ati tools testing your video card for Artfacts at the same time. My chip with prime 95 alone will hit 51c max but with both programs running will get near 58c. This is a true thermal test simulating playing a game like Obilvion and stressing your machine to the max. You might be surprised how dangerously hot your machine gets. To let you Know my cooling consists Of a Arctic Cooler 64 pro 4 x120mm fans and Antec Spot cooler. I also have a solid aluminum case and my computer is in my basement where it is always cool. I'm only saying this because I thought my cooling was adequate and it is just barely. Try running these tests and let me know how they come out and post your results.