Archive for the ‘Mining Hardware’ Category

While we are still waiting Bitmain to release AsicBoost support for all of its Antminer S9 variations, Braiins OS Wolfram was made available from the Braiins team. This new release of the Braiins opensource OS for Bitcoin ASIC miners comes with support for all Antminer S9 variants and adds support for AsicBoost as well, it also works on DragonMint T1 (only the variant with Xilinx based control boards). Aside from AsicBoost support on S9 mining hardware, by using the Braiins OS Wolfram you also get the ability to change the clock frequency and voltage for the miners on per hashboard basis, so more tweaking options.

Braiins OS uses over (version-rolling) AsicBoost in accordance with BIP310. For Antminer S9, this is currently done using the bitstream provided by the manufacturer, but the goal is to switch to a custom open-source bitstream as soon as possible. All Antminer S9 models (S9, S9i, S9j) are supported, however, the amount of possible variations is rather high, so for this reason it is recommend to test an SD card image first on a single device and once you are confident that the firmware operates according to your expectations, you can apply factory transitional firmware images. Then you can start tweaking the voltage and frequency settings to utilize the extra power savings that you should get of about %13 thanks o the use of AsicBoost.

For more details about the new Braiins OS Wolfram for Bitcoin ASIC miners with AsicBoost support…

Really interesting news for everyone that owns Antminer S9 ASIC miners and other Bitmain BM1387-based models like the Antminer R4, S9i, S9j, T9 and T9+. Bitmain has officially released a firmware to activate the so called “Overt AsicBoost” for Antminer S9 Bitcoin ASIC miners and will have the firmware for Antminer R4, S9i, S9j, T9 and T9+ within a week as well. This comes just a few days after the announcement that Braiins OS might actually bring users support for Overt AsicBoost. According to Braiins the activation of the “Overt AsicBoost” functionality on S9 can bring down the power consumption by about 13% which is more than welcome at the current market situation for any miner using Antminer S9 Bitcoin ASICs. Bitmain however does not officially reveal how the new firmware with “Overt AsicBoost” affects the operating parameters of the S9, though the upgrade should reduce the power consumption for sure. If you upgrade your Antminer S9 miners to the new firmware please feel free to share your feedback in the comments below.

Fore more details on the firmware to activate “Overt AsicBoost” in BM1387-based Antminer Models…

Braiins is the company behind one of the oldest and most trusted Bitcoin mining pools – Slush Pool, and they something new and interesting to show – an alternative opensource operating system for Bitcoin ASIC miners in the form of what they call Braiins OS. It is the very first fully open-source, Linux-based operating system for cryptocurrency embedded devices with the initial release targeted on mining devices and more specifically Bitcoin ASIC miners. Braiins OS has been developed for two primary reasons: to be open-source and have no “hidden features” and to work stable following standards without issues.

The first release includes images for Antminer S9 and DragonMint T1 (only the variant with Xilinx based control boards). Braiins OS is currently mostly on par with the official vendor firmware at this point. It monitors the hardware and its working conditions, handles errors and provides various performance data, but more features will be introduced making it a more interesting alternative. Most importantly possible performance improvements are being looked into as that would probably please the miners the most. The Braiins OS is intended to integrate flawlessly with the Slush Pool, but it should be just fine with any other alternative pool for SHA256 mining, so you are not going to be limited in where to mine with it.

Be aware that Braiins OS is still in alpha stage and has not been tested on a large scale yet, so you might want to start by deploying to single miner to give it a go before deciding to deploy on larger scale!

For more details about the alternative Braiins OS for Bitcoin ASIC miners…


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