iGuest 3 Report post Posted March 6, 2005 If its the cpu fan you, could try a different plug on the mobo. Just unplug the fan and put it on a differnet header. It could be that on mbfan header i screwed and not supplying enough voltage to the fan to start up.You could also try a little oil as that can sort things out, you can possibly check if its getting stuck by turning the blades when the pc is off. Share this post Link to post Share on other sites