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1  Bitcoin / Mining software (miners) / Re: [NEWS] Antminer S9 CUSTOM FIRMWARE! on: April 12, 2018, 02:34:29 PM
Dear community,

Like Dolle said we are verry bussy. I will try to keep you guys updated from time to time.

Right now we are able to undervolt / controll fanspeed and set freqencys on the S9 miner. We are testing multiple machines to see what settings are "safe" in normal opperation so we can adjust the web interface in such way the risks will stay to a minimum to the users. About the BMminer, yes Bitmain did a verry good job at putting some "Bitmain beneficial" software into the BMminer and the OS itselve as well.
I wont go into details about those things for now. All i can tell so far is that Bitmain is getting more and more creative to avoid people making there own software for their miners, atleast for their sha256 miners.

Is it work fine on S9 with 13,5 THs builded in autumn 2017?
This solution from this forum didnt work in real testing:
https://bitcointalk.org/index.php?topic=2809499.msg34536940#msg34536940

May I test it on one of my miners?
2  Bitcoin / Mining support / Re: Overclocking of Antminer S9 with Liquid Cooling on: April 12, 2018, 01:54:34 PM
Hello everyone !!!

for overclock the S9 (tested on the version AntminerS9 14./s
First "up or downgrade" the AntminerS9 version to BMminer v.2.0.0 (Antminer-S9-all-2017705031838-650M-User-Update2UBI-NF.tar.gz).
link: https://shop.bitmain.com/support.htm?pid=00720161126080548570Q2tDBXAH065D


after that the version installed is, normal login on the miner (Miner has a new IP)
than you go then "Miner Configuratoin"
you have the option to choose the fixed frequency range of 550-650

to choose a different frequency, You must change the address in your browser from "yourminerip/cgi-bin/minerConfiguration.cgi" to "yourminerip/cgi-bin/minerAdvanced.cgi"
Here then a frequency of 100 MHz to 1000 MHz is selected.

higher frequencies provide higher temperatures!!!!


Loaded this firmware to S9 13,5 THs (build in autumn 2017). Try to change frequency (from 600 to 650, 700, 750 on blade). It changes in settings, but real productivity does not grow!
In monitoring see for example 14 or 15 THs speed. Real on the pool see only 13,5 THs.
Wtf? Changes prohibited by the manufacturer?
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