Z77 extreme 4
i5 2500k
860 NVidia certify power
I got the second GTX780. when I put it in I cant seem to find it or detected anywhere. I did try
-DDU reinstallation on my drivers many time
-re seating the cards
-both cards worked fine in pci3 express slot fine I got only 2 of them
-card wont play in slot 2 by them self
-did set the bios PCI express to GEN 3 both slots
-fans on the second card in slot two are on