Back in the day when I was folding, there wasn't a stable way to limit a gpu's usage. You either ran it 100% full on folding, or didn't fold. Is it still that way today? How would one limit the gpu to say, 50% like you can with cpus? My gpus screaming at me during the day is a deal breaker. If I can figure out how to run them at a lower usage, thereby lowering temps, I'd be able to fold again.