Yeah, you blatently need a fan on a 9700. My 9800 has a fan, and even so on a hot day, the heatsink gets burning hot. Literally, you could burn yourself on it :lol: So fix that. I would have thought you would see some core artefacts (little dots everywhere on the screen) before the PC just turned off, but I don't know what soft of stuff the 9700 does. But fix that.