Hey everyone,
Not sure if this should be in the marketplace section or not, but it feels more relevant to mining, so let me know if I need to move it.
Does anyone here still use the S9 miners that operate in NON Asicboost mode?
I’m working on a project that needs a decent amount of these miners, aiming for between 500TH to 1EH of S9 non-asics. I'm offering a pretty sweet deal that beats the best Bitcoin FPPS rates out there. Just a heads up, this can’t go through Nicehash, and the project is set to run until at least the end of 2022. If you're interested or know someone with a big S9 setup, hit me up or send me a PM.
Thanks!
Mineon.
Ya may want to expand your search to include the Avalon 841 as well. It is the last of Canaan's non-AB miners with nearly same performance but far better lifetime.
I can use any S9 or variant including the S9k, if anyone knows of someone who still mines with those machines do send them my way as I am interested to touch base. Thanks!
Why not buy any s9 miner you can flash it to non-asicboost firmware?
You can do that by flashing it through SD card you can follow this below
- https://support.bitmain.com/hc/en-us/articles/360019493654-S9-series-S9-S9i-S9j-S9-Hydro-Control-Board-Program-Recovery
And then flash it through WebGUI with 2017 firmware still available from the Bitmain download page.
You have to pay a lot more to convince anyone, Asicboost saves on average 13-18% on power, so let's run the numbers.
profit today = 0.15$ per th and S9 with 13th gets 1.95$ a day.
Asicboost activated> 88w per th, so a 13th S9 takes 27.4 KwH every day
Asicboost deactivated> 103w per th, 32.1 KwH
so about 4.7 kWh a day per miner so an extra 0.235$ per day for 5 cents rate (could be higher but I doubt anyone with higher rates still run S9s) and that puts you at 1.95+ 0.235 = 2.185$ and that is 12% more than a PPS pool.
Plus, S9s with Asciboost activated run A LOT cooler, and require a lot less cooling, so there is more cost involved when running them without Asicboost, also the lifespan of the miner will be reduced for running hotter, so not even that extra 12% can make up for all of that.
To add more insult to injury, the vast majority of S9s run on firmware versions that do self-tuning to squeeze a lot better efficiency, anywhere between 70w to 80w, and those firmware don't have a non-asicboost version, so it looks like the 12% can be anywhere near double.
I have a few hundreds of S9s that have been tuned and mining at the best efficiency they can, took a lot of work to get them to the stage, and having to flash an old non-asicboost firmware will take a lot of work, I personally won't do it unless it's an offer I can't refuse, and given that this is going to be done for research purposes, I doubt it's worth it to give me such an offer, but hopefully, you get a good offer from someone else, just be careful of scammers and use escrow.
S9ks don't have Non Asicboost firmware, Bitmain didn't write one, and nobody else did.