Quote Originally Posted by Mitch View Post
Interesting, I just checked my SNES and it is a 2/1/3, no sticker by the power switch though. I borrowed my brother's SNES which is a 1/1/1 and WWF Raw would not load but Family Feud and Jeopardy are fine with a reset. Looks like there is varied compatibility depending on your console revision.
My SNES jr is also a 2/1/3 and it doesn't work at all. I guess there's a reason the jr's are listed as incompatible on the RetroZOne site.

Mitch
So it would seem that 2/1/2 is perhaps the most compatible with the PowerPak at the moment.

I am inclined to think that the SNES jr. supplies less power to the cartridge slot than the PowerPak needs, making it not work.