Hi,
I have a power tower and a ZIV busboard and the A1200 gets power via the power connector of the floppy directly on the motherboard and the p8p9 (AT type connector) via the ZIV busboard, the cable that comes with the power tower to connect the PSU to the a1200 power connector is no longer needed as long as you have the p8 and p9 connectors connected to the busboard.
I don't know the pinouts of the AT connector, you should be able to find them easily on the net with a google search.
Regarding the xsurf, try to clean the Zorro connector with isopropyl alcohol or a special liquid to clean ICs and reseat the board, I had a similar problem a while ago and Jens. S. told me to do this and it worked.
Regards,
Dragster
