I have bouhjt this 7800 XT card a week ago. and two days ago started a strange thing - at One moment not far from the boot of system Card just shows me Green screen and stop working - No Signal! at the same time system is On. Helping only button power Off. Today the same thing again, now far from the start simple game in 4K Steamworld Build - 10 minutes and a green screen.
After that had done a lot of test on GPU temo and other components and everyting fine! Max temp on 7800 XT 67 *C works fine
Defective card or the whole line 7800?