I recently changed computer hardware (MSI board with AMD XP2000+) and when I went to render a portion of a project (DVD-NTSC mpeg-2 no audio, no FX added), the computer shut down after about 20 min. Did the same thing a couple of time, with different renders from different parts of the timeline. An AC3 render went fine. Has this happened to anyone? I wondered if the CPU was overheating or some other protection mechanism was kicking in, but the CPU has the stock fan and the power supply is 400 watts. I didn't check the CPU fan, but I assume its working since the box would't run anything if it wasn't. Haven't noticed any other squirrely behavior from the box. BTW, the same clip rendered OK on another machine. This is plain 4.0, no updates.
Thanks