Hi chaps, Got a 4 month IS7 motherbord. Recently switching on for the first time in the day the PC makes a bloody terrible noise, like a grinding mooo!. As I have LED fans and a side window I've owrked out its the Northbridge "Abit" fan struggling. It shuts up and spins normally after about 30 seconds. I'm in the UK. Is there any chance Abit would send replacement fan out easily, if not whats a good replacement? My system is not overclocked. Thanks, Damian