Hi All, really need some help. Recently I stupidly pluged a power lead in first to the wall then the back of the pc which caused a huge spark and the pc would not turn on, so I changed the power supply from a 500w to a 600w. All installed but the issue now is the CPU fan spins for one second and stops. No lights on mother board either. I've isolated all the other components but when I unpluggled the graphics card the CPU fan wouldn't spin all, any one have any ideas what's going on here?