What happens, is that without doing anything to the source of power, connecting it to the current is turned on by itself. Without making a bridge, without moving a switch, without undir the power button of the tower. Only when connected to the power supply does the power supply switch on. I clarify that the source is totally disconnected from the motherboard.
HI FRIEND ! CAN YOU TELL US WHAT MODEL IS UR PC N BRAND? AND YES UPLOAD A PICTURE FROM POWER SUPPLY. IN ADVANCE YOU CAN MAKE A TEST IF THOSE POINTS ARE SHORTED ...THIS PINS ARE THE WAY POWER SUPPLY TO TURN IT ON ITSELF ... HOPE U HAVE A METER TO DO IT . GREEN AND ANY BLACK.... IF THIS PINS ARE SHORTED THERE IS SOMETHING WRONG INSIDE OF P SUPPLY.