Who was it, DCE that had a PPC card for the A3000 that was directly connected via cable to the PCI backplane? Rather than go through the system bus, that's the better way - let the card draw power from the system, do the data transfer directly with the CPU, and use the host system for native chipset, etc. (if we're talking about upgrading old gear).
You're talking about the GREX. AFAIK there was never a 3000 version released, just the A4000 version and A1200 version. We added support for it in AmigaOS 4.1 Classic Final Edition. At least for Voodoo 3 gfx. You get faster speeds through that direct connection vs. Zorro 3.
