I'm using an Acer E500. I replaced the old 250W PSU and ATI Radeon X300 video card with a new Cooler Master 460W and a Leadtek GF9600GT. After connecting all the connectors my systemsimply won't start. I then tweaked the voltage setting from 230 to 115. Shortly after that I turned on the power and was rewarded with a loud "SNAP"and a burning smell. Is my PC now fried? What was the cause of the original problem in the first place? Does ny newPSU have enough power to support my new GFX card which requires a minimum of 400W? I only bought the 460W PSU because the shopowner toldme it'd work. Please help!!