Help with DMS4 Pro install
 

I have a ps2 v7 and I am attempting to install a DMS4 Pro modchip. The diagram that I have shows a solder point for the 3.3V connection for point A in a place that does not exist on my mother board. All other locations on the diagram have been accurate. I have a model 39001. Can anyone point me to a diagram that will show me where my connection point should be. Looks like my motherboard has a lot more hardware around the 4 pin connector that hooks to the power supply than the diagram I am using. Thanks in advance for any help