After getting my A4000T back in working condition after 10 years, I have started trying my old cards and newly bought cards. It turnes out that the order of the cards is very important especially when mixing Zorro3 cards with Zorro2 cards.
Starting from the bottom Zorro slot, this is the only configuration among others I tried which works:
1- Toccata (Zorro2)
2- VLab Motion (Zorro2)
3- XSurf100 (Zorro3)
4- ZorRam256(Zorro3)
If I move VLab Motion to 5th slot above ZorRam256, neither ZorRam nor VLab Motion are detected.
If I switch places of VLab Motion and ZorRam256, I get a defective card message.
I also got different results ranging from guru loops to none of the cards detected.
So try separating your Zorro3 cards from Zorro2 cards.