We've heard reports of black screens with some of the latest Nvidia drivers for some users. Please try reverting to Nvidia driver 381.89 if you're having problems. Thanks.
My rig has been doing random black screen since August 14, 2016 (windows 10 anniversary update). I've tried a LOT of solutions without success, but the last one looks promising. I'll post the solution in a few days if it doesn't black screen again!
Edit: Oh well, back to square one, I got a black screen 😞
Specs: AMD Ryzen 9 5950X, Deepcool Castle EX 360, 32GB Corsair Dominator RGB 3600MHz, Asus ROG Strix X570-E Gaming, Asus ROG Strix 3080ti, Corsair HX1000, Western Digital SN850 M.2 NVMe 2TB, Samgung 850 EVO 500GB & 840 EVO 500GB in raid0, Seagate Ironwolf 10TB, Corsair 4000D Airflow, Acer Predator X34 3440x1440 @ 100Hz, Acer V287K 3840x2160@ 60Hz, Oculus Rift S, Oculus Quest 2 256GB.