Hi, I have an ASUS A7V8X-X mobo +2500 333FSB Barton ti4200 64MB Chaintech 512MB Samsung pc3200 120G Maxtor I just built up a new system. I was about to install windows xp.. and suddenly the sytem shut down by itself. I opened the case and the cpu heatsink was hot as hell. Everything is just fine, only fan is not spinning. I tested the fan in other motherboards and it works fine. Need help... I think it's a mobo problem..