Being that the VRM is up at 255 I would say your having some sensors issues. That's pegged showing that a sensor is misreading. If you were really at 255 there would be smoke coming out of your computer. Lol. That's like 500 degrees F.
I run a 7950 at 1100 MHZ and 1.31v and my temp's dont get over 56c under gaming load, for a reference.
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