I tried going from one custom rom to another, and now I'm pretty sure my card is bricked. I had read in a post that the latest nvflash did not require you to disable the adapter in device manager, so I did not worry about trying. I ran: nvflash -6 *****.rom and the cmd window just hung for a few minutes. I ended up just alt+f4'ing. I rebooted and monitor gets no signal and turns off. Boot into windows using igfx, and nvflash can see my 980ti, but will not flash anything to it. It says the eeprom is erased. I tried downloading a stock rom, but nothing flashes to it. I tried going into dos from a usb boot, and nvflash says no nvidia adapters found.
My card is Zotac 980ti Amp! Extreme.
Edit: I used nvflash 5.292 and it worked. I was scared poopless for like an hour, haha.