GIGABYTE GA-970A-UD3

All motherboards have little guirks with them , Mine is an Asus and when I shut down the led on the mouse scroll wheel stays lit , go figure. Sometimes I unplug the usb cable after I shut the Pc off to turn off the led and then when I plug the usb cable back in it dosn't come on untill I turn the Pc on. I would turn off your psu to turn off the led and the turn the psu back on.