[SOLVED] My pc turns on but doesn't turn off and won't display

[dunu4]

So I used my psu in another system for 10 mins but it didn't work so I put it back in my system but now it won't turn off by the button and won't display.

 

[Vic 40]

Make sure all cables are well plugged in. Is 24=pin+8pin+pcie power connectors.