Just finished putting it back together as the head was removed to ship. When you open up the back of the head there are 3 plugs for the CPU. The large one isn't a problem but the 2 smaller ones appear to be about the same. Does the silver metal plug sit at the back of the head and the grey rubber on plug it up front ahead of the large grey plug? Just want to double check before I power it up. Thanks! Never mind I see the plugs are different!