PSU might not be able to supply the power to start the system, but just enough for the USB ports.If I plug the power supply in I can hear a feint clicking noise, pressing the power button doesn't do anything, fan doesn't attempt to spin or anything.
Any ideas folks?
I could order a replacement psu to entirely discount that being the problem. But I am getting power from the usb sockets so that kinda makes me think it's the board.