Z11 2.3 / Full Frequency/Voltage controls per hash board.
- Tuning guide coming soon.. high level summary below.
- This includes everything from my past releases and adds Z11+Voltage per hashboard.
150k+ should be doable with minimal tuning.
170-180k is doable with multiple power supplies (or a big honkin' one), careful tuning, good cooling, and some luck. Smiley
Wattage has not been measured at this point in time due to hardware limitations at my testing site. Feedback welcomed.
https://releases.broked.net/Z11_2.3.tar.gzMD5SUM: dcaba5458537da6c8ce7e14b5f7795bc Z11_2.3.tar.gz
SHA256: fe7cf284d6811f97f7f826e30bd780b987b697220e1ba9597b087f14b8371252 Z11_2.3.tar.gz
To install this image you need to already be unlocked. You can use my unlocked base image to boot from SD card and then install this. Going forward, all images will be installable via web after the initial baseline SD card installation. SD image:
https://releases.broked.net/Z11StockSSHNoSignature.zip Stock image installation instructions are available in post#672 on my primary thread:
https://bitcointalksearch.org/topic/m.50664518I will write up a more complete tuning guide soon as it is a little complex, but for starters:
Tune your frequencies as usual (instructions on the frequency page) on the stock voltages.
Once you understand how your system is operating, increase the frequency, bump the voltage up, rinse/wash/repeat.
Global settings apply to all hashboards.
Per-hashboard applies to... you guessed it, the individual hash board.
It is possible to overrun a single APW7 by tuning voltages -- symptom there is the unit will just reset.
Drop voltages by 5mV per board until you find your maximum.
As usual, run fans manual, 75% or higher. Try to keep temps 85C or lower.
If you add too much voltage, you'll just add heat.
If you don't have enough voltage for a given frequency, the hash boards will go into limp mode (~10-15kSol/each).
If you push too much voltage/frequency, the hash boards will go into the same limp mode.
Somewhere around 781Mhz/940-960mV should get you a good ~150-155kSol.
Sometimes a lower frequency will work better for a given system.
Maximum frequency is 825Mhz -- my stuff will let you set whatever you want, but I've yet to get anything beyond what I call limp mode above 825Mhz.
This release has no dev-fee for the near future, but will probably end up with a single 20 minute mining session once a day to support additional development/testing/blahblah.
As usual, a license is available if you want to go that route and never have any dev-fees, do the PM thing and we can discuss.
Back porting to Z9/Mini is still under evaluation -- nothing to really speak of there for a variety of reasons.
Thank you,
Jason