There will be a tuning suite for Nov, but not this side of Jan, as everything there is winding down. There's just some ongoing Neptune work. There will also be the means to vary SPI clock frequency. I saw it in the original tuning suite as a feature, but that hadn't been developed into the recent release. It was purely part of a template I saw.
Can you please elaborate on what that option does as I believe many of us are just changing values without knowing what they actually do
The voltage settings are clear, but the SPI voltage and frequency not so much. I know they are related to the communication between each board and the controller board, so do they increase the signal to noise ratio or am I talking rubbish
By changing the voltage you are altering the power consumption and the noise to signal ratio (communication error rate - although reported by CGMiner as hardware errors they are not actual hardware errors so don't worry)
The less voltage the higher noise to signal ratio, the higher the probability of hardware errors.
The greater the voltage the less noise to signal ratio, the smaller the probability of hardware errors.
The higher the frequency, again the higher noise to signal ratio, which is not what you want.
If the SPI frequency is too low then there is not enough bandwidth to collect all the good nonces found. So you want to find an equilibrium where by SPI frequency is high enough not to miss any of the nonces found, but low enough to retain a healthy noise to signal ratio and thus minimise hardware errors.
Also, my bad, the future firmware update is not about SPI frequency, it's about configuring the PLL settings, which is directly correlated with the hashing speed as you are directly altering the clock speed of the die.
The SPI is not the hashing speed, but the speed of the communication between the dies and the controller board.
Hope that clears things up bud, and Merry Christmas, or if you're not into all that happy holidays all the same.
Thanks for the info
I have one other concern in relation to changing certain hex values, that increase some other values, that lead to increased hashrate
which bothers me lately: according to one KNC engineer, which I met in person anything above 50Amps per VRM is considered not safe for long term usage. Or 200Amps per board. He wasn't very clear about it. Yet the 0.99 Tune firmware has the option to increase the current per VRM up to 64Amps, which brings the question: if over 50Amps is considered not safe, why then we have 64Amps at our disposal?What is considered safe? Judging by the latest firmware I would assume 64Amps to be safe or at least any logical, non-technical person would believe that as it is included in the Advanced tab options.
Happy holidays and don't drink too much
We need you back here in the new year 