[andrewas]

This is weird. If it dosent happen with IWD2 but does with BG2, I'm not entirely sure what that means.

My feeling is that its not possible for well-behaved software to hit the CPU hard enough to heat it that much, and if it was IWD2 would be worse than BG2 as its a more powerful version of the same basic program. What software is monitoring your CPU temps? Possibly its getting confused somehow, that seems more likely than the CPU actualy going into radical overheat for no reason.

Most of them have a history function, set that going and run the game, if the resulting graph raises slowly it may be real, if its a instant increase its a software artifact and you should be able to safely turn off the monitor. A overheat of this magnituide will make itself felt of its own accord anyway, and you wont take more than a week off your CPU life anyway. Which is a lot less severe than it sounds.

If its real, then the only thing I can think of would be a malfunctioning driver of some description. Upgrade the lot, and remember to include your motherboard drivers, which far to many people forget about.