After alittle look, i have found the pic i made that has the chip numbers for both the Proto and the retail versions of Earthbound i have also included a few other pics. I thought some of you guys might find interesting.

I have given each chip a color just look at the same color, on the other cart to see the difference in chip numbers..

(this is where it gets exciting )




Back of the Proto Earthbound Board.. manual soldering


In this pic, look at both hoops there is a slight difference to the
proto board it has no solder point were as the retail version does.


More manual soldering, and the missing solder point...


..XS