I upgraded my laptop GPU twice now, once to a GTX 580 about 3 years ago and to a GTX 770 about a year ago. When I ran the 580 the sound card worked but once I jumped to the 770 I had the same issues as you are having and the only solution was to disable the sound card. So now I just use a USB headset. I run Windows 7 and have tried a number of different tweaks to see if I could solve the driver conflict but I was not able to. I think it really comes down to something in the BIOS code that may need to be adjusted which is beyond my abilities. However personally I have gotten over it and now and happy that I can still use my R2 to play current games at a good quality 6 years after I purchase it new. I had posted the same question you had to a number of sites about a year ago but came up empty. My last hope that maybe Windows 10 would solve it but looks like from your experience, that is not that case which for me points more at this is something that needs a BIOS code tweak.
Speaking of Windows 10, I was thinking of doing that upgrade. How did that upgrade go for you, all the drivers working ok?
Thanks
Mike
