Does that graphics card have its own power supply (plugging in directly to the PSU) and if so, is it plugged in? Perhaps it uses more power than the other cards that worked in the board and the board alone cant supply enough through its slot?
Adding to what Kiwi suggested, what power supply are you using? The '470 requires two six-pin power cables from the PS, but I imagine you know that. Although we don't know whether or not this is a BIOS issue, I would not expect many new BIOS updates for this board, as it is being discontinued.
I would not expect many new BIOS updates for this board, as it is being discontinued.
Although I hope that you agree with me parsec that if (and only if) this turns out to be a BIOS related problem, Intel at least recognises it as such and looks into the feasability of another BIOS update. There are still alot of people out there like myself with the 'irregular fan speed/won't shut down when in this state' issue when CPU C-States is enabled in the DG45IDs BIOS and that's not been addressed yet (even though several new BIOS versions have been released since it was first reported). There's not much reason to think highly of Intels BIOS updates so far in my opinion.
Kiwi, I completely agree with everything you wrote.
I tend to be pragmatic and cynical in the sense that I see those few that make the decisions where resources will be used will only be looking forward, not back. Given we did not receive fixes for the issues you mentioned while this product was "current", what are the chances of updates to the BIOS when the product is no longer being produced? I know what you're thinking, what about customer support, and the respect for customers whose money has already been spent on a product. That is more than appropriate of course, but as I said I am cynical, and hope to be proved wrong.