I Agree we should see a bit more OC to this High End Miner since its fame of being " Designed to be underclocked for greater efficiency, and overclocked for greater performance" off the description of HF site. DIY MOD tryout... replace the water block on the BJ for something maybe abit more OC type. Hence a Water Block from koolance EX2-1055 (Exos-2.5) Liquid Cooling System , 1000w rated ...
We are doing the best we can to improve the firmware. One of the features we want to give you as soon as we can, is per-die speed control. I can't promise it will give you more speed, but I'm hopeful it will help.
Engineering-wise, I can tell you with certainty that cooling it down more will NOT make it run better. The only reason you'd want more cooling is if it's running too hot. If it's going over 90C, then you can worry. It will shutdown at 105C.
I've found almost without fail, the silicon likes to be warmer. You'll see this by increased errors when you first bring it up and it's still "cold". Once it gets around 70C it seems to get happy and the errors usually fall off.
-Phil
I would love to have per die control. I'd assume fine tuning would help with the fluctuations i see in speed.