two graphic cards in one pc

I'm using dual boot with windows and I bought yesterday gtx 1650 for my pc to use nvenc codec in obs (I don't need it in mac os, just in windows). My ryzentosh sonoma was working well (rx 6800, 7500f), but when I installed my second card it isn't starting now. How I can turn off second GPU?

submitted by /u/nest0vsky
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