According to these two, it seems your DIMM board and GD interface board are not properly connected. MKAGP 1&2 have triforce type 1 versions, and F-Zero AX also has a type 1 version. 256mb DIMM boards dont work with Triforces, and you should probably check out this thread yourself in regards to...
This is the board in question. According to this image, they should work, but they were manufactured before the Triforce, so I was wondering if they worked nonetheless.
I.e. run Swiss on it, and the like. It seems like it should be possible, I was just wondering if anyone had tried, or if there is some reason why it is not possible.