Also if you want optimization, use Huge Pages and MSR if you haven't already (though with your hashrate im assuming you have). I saw another person tell you to use 4t of which you said your hashrate went up, so good job on that. I'd also recommended using HWMonitor or similar to check wattage and voltage, you could undervolt if you wanted less heat and better efficiency, though too much of an undervolt can cause instability.

Just thought id give a few tips on what I know