General lack of response(solved) Hi, new to these boards. I have been having a bit of trouble with my rig, i built it last November for general gaming/college work. I cant provide to much information on the specs. Originally i was using a 400W power supply, which may have been a bit to weak for my system. I was happily surfing away when i noticed the case getting a bit hot, i thought nothing of it and loaded up "World in Conflict", not long into playing, my speakers emitted an annoying noise, then the system just shut itself down. After several attempts to reboot there was a shot of sparks out the back of the PSU, followed by the smell of burning, i was still unable to get any response from it. I left the system to cool-down, hoping that would solve it. Later in the day i opened the case to inspect the PSU and the Motherboard, i am not to experienced with them with it being my first build, but i could see no visible signs of damage (when they burn out is it usually visible?). My next course of action was to order a new PSU, this time i got a 500W one. Hooked it all up, plugged it in, power on and no response(should the PSU fan spin if it is working? and not connected to anything? it didn't spin) I am a bit lost with what to try next, could it be the power cable I'm using? I have no idea, please could you offer some advice? Thanks, Sam.