@Pedro7:
SuperBuster rev 7 is not usable in the A4000, it is made for the A3000. Cards will sortof half-work, sometimes, very unpredictable.
The powerflyer doesn't use DMA because it is made not to support DMA to save costs - in short a el-cheapo card with el-cheapo performance.
The CV64/3d is a autosensing Zorro2/3 card, so in a Z2 Amiga it is a Z2 card and in a Z3 Amiga it is a Z3 card.
/Patrik