I already have a fan and a little heatsink and it's not that hot.
You can toughts it witout burning but I can feel that it's warm through the tower case.
If it is overheating how come the rest 10% of game play work sometimes for houres?
I have one idea, that it could be the 16MB module, it's not original ram but I have removed it before and noticed noting except less memory (Would be strange iif else :-D )