Folks whom purchased the EVGA GTX 780 cards were given a video card bios update by EVGA that resolved the issues, but unfortunately the EVGA bios update ONLY will work with the EVGA branded cards. EVGA has since began utilizing the new revised bios on all there new production line 780 series cards.
GTX 770 Motherboard Compatibility Issues Official Thread
I am waiting on a possible EVGA bios update for the GTX 770 that will help prevent any conflicts with some of these Intel motherboards. Of course i am using the earlier generation Intel DZ86BC Mobo and will only go as high as the Intel 028 Bios update for this motherboard.
Contact PNY and see if they intend to revise and release a new bios for your card like EVGA did for their customers.
Regards & Good Luck