SatireSam

Okay thanks, will try this when I can, Is there anything else I can try in the meanwhile?

After upgrading PSU It now stays on post asking to press f1 to run BIOS recovery. I cannot press F1 however so can not get past posting specs: I3 71001050ti2x 4gb ramAsus H110m-k micro-atx motherboard(Upgraded to)Corsair VS 550 watt PSUThe keyboard is reciveing power when plugged to the pc and works connected to a laptop. I have also tried plugging it into every USB port on the mobo with it being the only thing plugged in.( it does say there is 2 keyboards plugged in if that is important) I have reinstalled the original PSU and another spare I have and there is the same result. I have taken the battery out of MOBO to reset it. I have doubled checked that everything is correctly plugged in and it seems to be. Finally, there was nothing wrong with the previous PSU so dont believe anything should have shorted. Thanks in advance