I have a machine that is crashing during UT. It has a Voodoo 3 3000 with a large passive aluminum sink on it and a Duron (Morgan) 1.2GHz with a stock collermaster on it. Something is overheating because this has only happened since the heat happened (average 85F with zero air conditioning). The CPU is reaching 69C doing Prime95 but has yet to crash. Although it's stuttering periodically and acting slowly. What do you think? CPU or vidcard?