I want to run a GPU with dead display outputs by using a lesser and older GPU for just diplay out. Like looking glass without the VMs.
Try looking into what people do to run mining GPUs that have no outputs for gaming.
For windows 10, you have to get the GPU to be seen as a “high performance” gpu, then it will be selected to be used for things.
Well, the only other GPU I have is a HD6770. Even though I now an AMD and Nvidia card can be run in same system, apparently I can’t install the newer drivers for the RX480, and an older driver for the HD6770. The driver installer refuses to proceed because of an “unsupported configuration”.