> again, does PCIe v1.1 (versus V1) allow for this?

Again, Tabor/A1222 is PCIe v1.0a and works at least with some (or even all?) GCN1 cards (while Sam460 is PCIe v1.1 and works with some GCN1 cards). If PowerMac11,2, which is PCIe v1.0a, works with less cards than Tabor/A1222, how can v1.1 vs. v1.0a be relevant for this?