I have the same issues too. But with my 6900XT. 5800X3D, Crosshair Hero Impact, 32GB 3200Mhz DDR4 G Skill, 2x 2GB NVME. Win10 2H. 23.12.1 driver DDU'd but still freezes/locks up sometimes even the power button doesn't work. Have to switch the power supply off.