After looking over the usb connection on the ADC connector I am stuck trying to figure out where the 5vdc comes from there are TMDS Data5+/- pins but I do not think they are for the usb hub I am left with

2. yellow adc pin 19 DDC CLOCK

3. blue adc pin 9 DDC Data

4. orange adc pin 3 LED

5. red adc pin 13 soft power

so it mus be the soft power, I do not know what voltage this puts out but If it is hight then 5vdc I am sure the board converts it to 5 for the hub. I think when installing a hub I will just leave the usb data+ and data- unhooked to the board and I hope that is enough to bypass the on board hup (I might also sever the usb hub chips 5vdc connection as well)

Also does anyone know what pin 23-USB Return on the ADC connector is for it does not seemed to be hooked up to the board.