I have bought a new psu which I connected up fine and everything worked ok but after about 10 seconds the pc shut down and it has not powered on since. I have tried putting the old psu back in but still nothing happens when I press the power button.
I think it may be the motherboard but I wanted to get a second opinion before replacing it or to see if there is anything else I can try.
I think it may be the motherboard but I wanted to get a second opinion before replacing it or to see if there is anything else I can try.