RE: Just "installed" Radeon R7 250 graphics card on my Dell Optiplex 9020. Black screen when I plug the monitor into the card. Help!
R7 250E is a remarked 7750 R7 250X is a remarked 7770
There were no issues with NON UEFI cards. There ARE non working issues with UEFI cards. This is the problem. A dell precision 690 with 1000W power supply does not work for any of these cards for the same reason.