Sometimes laquor will cover the holes on PCB's.
Try using rubbing alcohol ( NOT BEER or Jack Daniels ) and use an exacto knife and slightly scrap the hole area of where D0 is.
Dispite populat beleif no 1.5's exist according to Evolution X, so you have a 1.4.
The hole is actually called a via, it allows running of traces from one side of a board to the other, if the via wasn't there ( hole in your terms ) the Xbox D0 woudl be cut and would not work normally. Most likly it has solder on top and laquor making it look like no hole(via )