Did you go right from and amd card to nvidia without doing a driver sweep? Or did you use the basic uninstall method?
Try reinstalling the drivers. Do a full uninstall and run driver sweeper, then let windows install the necessary driver. If it's running windows 8 or higher. It will install the latest windows certified driver from nvidia.
Indeed it is but the GPU wasn't installed as the guy who first attempted the build didn't get that far. He lost the power cables (just as well because the PSU wasn't powerful enough) I took everything out and started the build over as I have high standards when it comes to cable management.
I have a thread open on the EVGA forums HERE if anyone want to see what I've already tried