How do I assign custom name to each GPU in the rig? I did that a while ago with one of my rigs but totally forgot how to do it, search didn't return any answers. I want to be able to later assign clocking profiles to them based on names (which include manufacturer/model/cooling type)
There are unfortunately no great feature for this today. For a selected miner, on the GPU tab, you do have a button for "Set name", but it's a bit limited at the moment. The name will only be used on the GPU tab itself. A future improvement would be to display it everywhere if defined.