I have an EVGA GTX 770, and it's kind of loud even at the the lowest fan speed (1140 RPM, according to PrecisionX). I'd like the fans to shut off completely when the GPU temperature is low, but if I try to set the PrecisionX fan curve for my current GPU temperature below 35% for my current GPU temperature, it has no effect on fan speeds. (The fan speed increases when I raise it above 35%, so that's not where the problem is.) Is there a way to shut the fans off completely, without doing anything drastic like removing the cooler or cutting a power cord?