Seriously getting frustrated... One day the psu fan started making a lot of noise. I turned it off: it wouldn't turn back on. I purchased a new psu and installed it. Not even a sign of life in my computer. Replaced the power switch, No sign of life. Replaced the motherboard, there's a lit green light on the mobo. That seems to be the only sign of life. Not a damn thing happens when I hit the power button and I'm completely frustrated and out of ideas. Anyone have any idea?