One year ago, I bought a computer from a local vendor that builds custom PC's. After some months, the computer satrted to hand, randomly, every once in a while, and now it has accelerated to the point where it hangs everytime I play games or listen to music. When glaying GTA3 it usually hangs after 15 minutes. PLaying MP3 files via Grokster makes it hang after 5-20 minuter or so. The question is why?! I have a Jetway 830CF motherboard with a AMD 1,4 Ghz CPU (WIndows 2000, 40gig IBM harddrive, 256 meg memory, Inno3D video-card, Creative Soundblaster LIVE! soundcard). What I suspect is the following: When I bouoght the computer, I asked for a specially silent fan since I had colleagues complaining about very high fan-noise on their computers with AMD-CPU's My fan is very quiet, which is good, but I wonder if it's not good enough for the CPU, causing the system to hang everytime the CPU gets too hot. Could this be the problem? I have no other problems (no programs are buggy, no error messages, no memory dumps etc.). Are there any utility programs that can do any kinds of analysis on the processor and see if it's "healthy"?