GTX 970 and GTX1080 non-SLI I'm attempting to run my Windows 10 Pro machine with both my 1080 and 970. As soon as I try to start blender I get the infamous "Error: EXCEPTION_ACCESS_VIOLATION". I've ran Blender with both cards indendently but never with them both installed on the machine. Is there some configuration change I have to make. I've done some trouble shooting.


Verified drivers are up to date.
Uninstalled Blender and deleted my %appdata%\Blender folder
Uninstalled video drivers and reinstalled them.


I'm at a loss but would really like the additional rendering capabilities under Cycles.
Ok after further investigation the issue was due to Duet Display software I was running on my desktop to use my iPad like a Cintiq. I'm going to reach out to Duet Display support and see if they have ever tested multiple video card configurations.