I've had this card for about a month and a half now, and I keep getting black screens whether I'm gaming or just browsing the web. I've tried virtually all the solutions from other posts that are similar to my problem without success: such as DDU clean install, pressing Win+Ctrl+Shift+B, disabling anything that OCs the card in Radeon software and afterburner (I only use it to set my fan curve), updating motherboard BIOS and everything else in my system etc. It should also be noted that I used a dual monitor setup previously, and it was mentioned somewhere that the software didn't play nice with dual monitors so I removed the secondary monitor which had no effect. I still have a month left to return to Amazon and buy an RTX 2070s though I would rather save that £100 or so, but if the instability can't be fixed I'll have to.
CPU = i7 7700K at 4.2GHz default (clocked back down from 4.7)
GPU = Gigabyte RX 5700 XT Gaming OC 8gb
Driver = 20.5.1 (previously used 20.4.2)
Motherboard = Gigabyte Z270 Ultra Gaming
RAM = Patriot Elite Viper DDR4 2x8gb 3000MHz with xmp profile
Please let me know if you need more information or if I missed something.