I just built s new system with an intel core i7 920 on an evga x58 motherboard. A few minutes after loading the BIOS(Phoenix BIOS), the CPU supposedly reached 85 degrees Celsius. In Windows Vista, the four cores give readings from 98-100 degrees Celsius. I'm hoping there might just be something wrong with the temperature sensors, wouldn't there be stability issues with a cpu that hot? I'm keeping the computer off right now, and thinking of reseating the heatsink- but even if the heatsink were a little bit off, would the cpu reach that temperature- let alone run stably?