Xbox One S no power- no power on 3.3 volt rail

I have an Xbox One S that does not turn on at all. I verified that the power supply and the other components work, and they do. There is no short to ground on the 12 volt rail and the mosfets near the apu test well. There is a coil to the left of the odd(optical disk drive) data connector that is shorted to ground on both sides. It also should be getting about 3.3 volts and does not. There is also no signs of heat from the motherboard. Please help, I have another Xbox One S motherboard that has good donor components.