Have had relatively few issues with my 5700xt until recently, now I have been trying lots of different things to get Minecraft and Deus Ex: Mankind Divided to work. Both games simply crash to desktop randomly after few minutes of gameplay and some other games have had similar issues. Some games have been really sensitive to some settings, like not working in fullscreen mode or crashing when trying to change resolution. No game has been able to work in dx12 mode.
Now with these latest issues I have been trying out bunch of different things, different amd drivers, tdr registry edits, different psu, disable fast boot, reinstall games, clean reinstall of windows and probably other things I don't remember right now. Changing gpu to my old r9 290 fixes minecraft but not deus ex, both of these games work flawlessly with my 5700xt on my brothers rig using same drivers. Also multiple games work in dx12 mode on my rig with r9 290, likewise my 5700xt on brothers rig has no issue with dx12, even deus ex in dx12 mode just works. On my rig 5700xt doesn't get past intro logo movies on deus ex at dx12 but r9 290 let's that run for few minutes.
At first there was "Display driver amdkmdap stopped responding and has successfully recovered." every time in Event Viewer just before Application hang, currently I get only Application hangs or nothing after ctd. Blue screens and system hangs have been rare overall and haven't happened with these two, other than few times when trying to launch deus ex in dx12 mode.
Currently only nvme no other ssd, clean reinstall for windows couple days ago, latest chipset drivers from asus product support page for my model, radeon software v.20.7.1 and no oc nor xmp on memory. Memtest86 and prime95 found no errors. All temps look fine to me. Creating usb tool from other pc to install 1903 failed miserably (booting from usb gave errors about missing system files, after trying again few times it booted successfully but failed to fully install windows)
So, at this point any tips and ideas to try out next are welcome..
Specs:
Windows 10 Home v.2004 64bit
ROG STRIX B450-I Gaming (BIOS version 3103, latest)
AMD Ryzen 5 2600 (stock)
2x8GB Corsair Vengeance LPX 3000 (CMK16GX4M2B3000C15 v5.30, present on asus QVL)
Powercolor RX 5700 XT Red Devil (stock)
Kingston 250GB A2000 NVMe SSD
Crucial 500GB MX500 SSD
Corsair SF600 (600W 80+ gold)
Edit: When it hit first time version 2004 update broke my windows and it was unable to boot, gave error screen saying some importat system file was missing, different one on every try. Got that fixed by converting from mbr to gpt. Now that 1903 recovery usb gave similar error when booting.