Quote from: sickpig on January 01, 2014, 02:40:58 PM

Quote from: Ghrindy on December 31, 2013, 10:50:15 PM

(remove a lot of useful info)

At the end the default-settings for Advanced tuning works best (for now), BUT after playing with those
settings, and at the end setting all the Advanced tuner settings back to original values(manually) resulted in the worst performance of 250 Gh/s and the only remedy was to reflash the FW.
I'll play again with the settings after next diff change.

it's quite peculiar.

in my experience an overclocked die need more voltage to keep the number of disabled cores low.

e.g. on my 211 asic board I get at least 20 and 15 cores disabled in the first and the third die respectively if I left the same voltage settings used for 1F1. I had to set it way higher to get almost all cores enabled, and after that another bump has been necessary to lower the error rate.

Speaking of power consumption: all dies across the boards are between 45 and 49 Amps. I have different OC settings for each board. The higher is 211 the lowest 1F1 and I've noticed that despite the OC settings and factoring out the voltage settings, the 4th die of each board is the one that drain more energy.

I suspect the variability in the quality of the boards has quite a bit to do with it.. It's a crude comparison but that same challenge exists with CPU or GPU overclocking... I say crude because in those cases you are talking about millions of parts, but the same core concepts hold, variability in ASIC quality and quality of a given board build being two of the most important things.