I have a Ryzen 7 2700x with MSI B450 Tomahawk Max and a GTX 1660 Ti video card. When playing with ultra graphics, GPU utilization is 0.1% (it happens even if the graphics are low). I have updated all the drivers including the BIOS, the RAMs have XMP active but I have already tried to disable it, I have reinstalled Windows several times and now I have swapped the video card with a friend and the problem persists. The only component I haven't tested yet is the CPU. I add one last detail: when I go to Control Panel -> System and Security -> Security and maintenance I find myself a hardware error (LKD_0x141_Tdr: 6_IMAGE_nvlddmkm.sys_Turing_3D)