All of the power supply rails are connected to a single location, and since we know that the top of the PCB has the 12V rails going straight to the daughter board for the modular connectors and then down to the 24 pin ATX connector, there is no possible ways the rails can be split like the box and marketing materials claim. Remember that the EPS guidelines stated that the 12V rails should not be connected together on the baseboard to ensure that 240VA protection circuits in the power supply operate properly. I guess this, along with the ATX12V version 2.01 standards, were just not of concern to the people who laid out the PCB trace routes.