The mainboard in my unit looks somewhat different than the link/picture you send. Also, the connector for J8, J9 and J11 is completely different and it is not clear how to get it disconnected. I have tried but I dont want to force anything. Here is a picture of what the connector I have. There seem to be 3 "L shaped blades" that come out of the mainboard and a plastic connector with the wires attached to it.