AFAIK installing a board in the A2000's CPU slot disables the CPU socket. I don't know if adding any expansion in there will work with the A2630 in-place.
FWIW this thread might be helpful to you:
http://eab.abime.net/showthread.php?t=74191It mentions an additional page on Kipper's site that details where the two pins need to be soldered to, but that page on his site is coming up with a 404.
