Hi Clutchc,
"It shouldn't be unusable, just slow using the x4 slot. If that's the case, either live with one card or replace the MB with one that is X8, X8 or better.[/quotemsg]"
Thanks for the reply and yes that's exactly what I would have expected. The physics for managing 3d and sli stubbornly remains greyed out. Innaccessable. I have repeatedly flashed Cmos jumpers before each boot. Tried the cards in alternate slots. I can get slower speeds but they remain mismatched (16/1, 16/4, 8/1, 4/1 etc.). I suspect that Gigabyte might well be aware of it too. If the stony silence on the topic of "advanced chipset features."
again thanks.
Miktha . . .