Okay so I recently installed my new psu (cooler master mwe 700w) and when my pc is completely shut down and psu is off at back of pc it randomly gives power to the USB’s for a second then goes off. It did this multiple times randomly through the night. Gave power to my controller that was plugged in and led lights that were plugged in too. So for a split second my led lights turned on and my controller too. Any concerns?