I have read complaints that newer RX 5700 gpu doesn't play well with older games. I may be experiencing this with my RX 5700 and Rocksmith 2014 Remastered. My issue is periodic yet random "blank or black" screens during gameplay. My motherboard is a Gigabyte AB-350 Gaming 3 (1.xxx) that features two pci slots so it will support two video cards. My OS is Win 10 build 1903. I still own an RX 580 (replaced by the RX 5700). Can I reinstall the RX 580 in the second pci slot and allow the two video cards to operate independently of one another? Then can I assign older games like Rocksmith to play under the RX 580 and newer titles like Red Dead Redemption 2 to play under the RX 5700?