1000mV is low. Try 1150mV with 1800Mhz. 1V may crash.
Such problem is most likely hardware-related. And you've done all test and you know the problem is with the GPU. This problem can also occur in another game. Good luck.
Still Crashing and rebooting. Adrenalin 20.1.1 Fullscreen RDR2
Also game Control is crashing and rebooting now.
Im so happy now. I changed my Msi gaming x 5700 xt to Asus Rog strix 2070 super. This is flawlessly. Gl all to find solution