Does the PC get past the BIOS or does it just boot to a black screen from the moment you hit the power button?
Mine does the same, i sent it in to a local repair shop guy d!cked around and he gave it back with missing screws and my screen is off fan is on no bios or anything to load up, no beeps. tried plugging in external monitor and no luck. key board doesn't even light up(num lock light)