There are some info about how to jumper the Supra Turbo 28 for use in the A2000 on
Amiga Hardware Supra Turbo 28 page. Unfortunately they dont mention which way you should insert the card. Found something worth mentioning in a review of the card - according to the manual the card doesnt work with A2000 manufactured 1986 in Germany (these should be the oldest A2000 called A2000-A) because they wont allow the Supra-card to disable the cpu on the motherboard.
/Patrik
