To all people who searching some for over or underclocking.
At first open your miner with ssh then take a look to the hardware errors. For testing and figuring out I was using bfgminer.
There you can see all errors on every board.
Now on all boards where you have more then 10% HW errors (after running for an hour) reduce the frequenzy to an point where your board is producing less then 1% HW errors.
How can I see, on which die I have to reduce the MHz?
On the used power of the die, I think as more errors one part of the chip (die) produces as lower is the power on this die,
because the cores are switched off. And for that it consumes not so much power.
After underclocking to the best performance with a few Hardware errors, you can start overclocking the dies which are working fine with
a few HW errors.
Take a look to the temperature, as higher as more errors and the opposit.
hmmm
stoping for now. Do you want more. Details?
Also there is no need to install unofficial software. On advanced page you have enought space for tweaking your miner.
And also take a look to the power consumption. You will come to a point, where the board consumes more power than 1 watt / Ghs.
On the next few month this will be the most important think. POWER