I've bought used sapphire RX580 nitro+ 4GB and new Asrock Phantom X570 Gaming4, Ryzen 7 5800X, 64GB RAM, SSD Seagate FireCuda 530 1TB(free 55% space), PSU Antec 600W VP600P (bought it in January 2018), Windows 10 latest update
Everything is fine except when I open youtube page - my two 4K...