I'm guessing I might be having a simular issue with a Intel(R) Core(TM) i7-2760QM CPU @ 2.40GHz. Just got the computer from Dell and the fan keep comming on. I ran a stress test and the temps were around 80+ C after the test completed.
The sent a tech over last night and replaced the heat synch and CPU fan, but the issue is still happening. Now they are going to replace the mother board, heat synch, and CPU fan all at the same time to see if that fixes the issue.
All along I said I think it might be a bad CPU as it seemed like it was heating up too fast. Your post makes me feel like that is the true issue.