So i just upgraded my 780 ti cards to EVGA 980 FTW cards and I purchased a 4k monitor. Ever since i changed my cards i have been having issues with my monitor not receiving a signal over display port. If i plug an HDMI cable in the signal is fine, but i only get 30hz. I have to constantly restart my computer and randomly the display will work. I wasn't having any problems with my 780 TI getting a monitor signal. Is there a bios update for the card that addresses this?