That sounds bad...
1. Probably Buster-Chip dead
2. The two IC's on the orig. Daughter-Board
3. Some of the small SMD IC's on the Mobo fried (a repair will be very expensive)
4. A4000 Motherboard are really hard to find...
Get a new Board is my advice...and check the cards
first in a non A4000 :-)
Good luck !