Hi,
I've modified
Gainward GeForce GTX 680 4GB into Quadro K5000. (40K none 15K none).
I was needed quadro card to get 10 bit color in Photoshop.
(with Geforce You can do 10 bit output, but Photoshop will not display 10 bit, unless You got quadro card, they create some kind of different "display port for 10bit" (means software port), not just a direct X, but somewhat that requires much more expensive card
which is noticeably more expensive on 4K monitor.)
So I have K620, real original nvidia card. It only has 2GB and it is slow, but I have 10 bits in Photoshop and (for some reason, it is not claimed, but in hardware mode I have 10 bits in the PS Lightroom)
When I open 16bit images with my modded card, I don't have 10 bits. So I might have missed something.
1) I've noticed that in the I have UEFI unchecked, not same I have for K620(original)
![](http://gpuz.techpowerup.com/17/05/13/dp6.png)
2) How can I test that double precision really works ?
3) do I need to update firmware, if it so, how ? (JIC: I have Gainward GeForce GTX 680 4GB )