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Author Topic: Any Large Legacy S9 Non AsicBoost Miners out there?  (Read 120 times)
sabre_labs (OP)
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May 05, 2022, 04:42:06 AM
 #1

Hi,

Not sure if this belongs in the marketplace but seems more mining related so admin do correct me if needed.

Does anyone have or know of anyone who still runs the S9 series miners that can run on NON Asicboost mode?

I have a project that requires a large amount (Min 500TH - Max of 1EH) of S9 type NON asicboost miners and can offer a good rate above the best Bitcoin FPPS rate out there. It cannot be run through Nicehash and this project will last at least till the end of 2022. If anyone is interested or can refer someone who runs a large S9 Mine do let me know or PM me.

Thanks all.

Mineon.
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May 05, 2022, 12:30:45 PM
Merited by mikeywith (2)
 #2

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.

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May 06, 2022, 07:38:16 AM
 #3

s9 s9k I don't know if this is what you need
sabre_labs (OP)
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May 06, 2022, 08:59:33 AM
 #4

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!
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May 06, 2022, 11:01:03 PM
 #5

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.

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May 07, 2022, 01:28:26 AM
 #6

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!
We have mines still running these machines
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May 07, 2022, 02:22:06 AM
Merited by DaveF (2), BitMaxz (1)
 #7

Quote
and can offer a good rate above the best Bitcoin FPPS rate out there

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.

s9 s9k I don't know if this is what you need

S9ks don't have Non Asicboost firmware, Bitmain didn't write one, and nobody else did.





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