A while ago I tried a pciex16 video card in pciex1 slot via a pciex1 to pciex16 adapter but the X5000 would not boot any of the combinations that I tried. Primary Card in pcix16 slot X5000 would not boot even with just the adapter and no video card attached with the primary card in the pciex16 slot. Second card in a pci slot with pci to pciex16 adapter would boot. Worked but was slow under linux but crashed while workbench was starting up under AmigaOs 4.1