When I render a scene in blender 3.0 using cycles, it uses only my CPU.
I have already done Edit > Preferences > System > Cycles Render Devices, and Render Properties > Device > GPU Compute. I've also tried a clean reinstall of the latest Nvidia driver (I tried the game ready and studio drivers).
I even reseated my GPU. I also know that the issue is not with task-manager, the 0-8% GPU and 100% CPU usage I'm seeing is accurate. I have this problem in both CUDA and OptiX. My GPU is being used by every other program I have that's supposed to use it so it's not a problem with the GPU itself.
I have a 3060ti.