Today my Acer Desktop (AM3970-EB12P, Windows 7) shut off while I was using it and restarted automatically. 5 minutes later it shut off again and restarted automatically, however it did not boot up. The only thing working are the fans which have sped up. When I shut it off and turn it back on, the same thing happens, it doesn't boot and the fans go really fast. I've been going through tutorials, but nothing has helped. Looking for any way to salvage this machine. Does anyone know some possible fixes I could try?