Hi guys,

Any trusted vendors for used equipment?

6T is which model

Long Story Short- I rented a stall (4'x10') in the lobby of a ~10 story large corporate building that used to have a small coffee shop in there and placed 2 Vending machines out front of it (seems like I'll have the vending machines paid off in 3-4 years) after that I'll profit~2k a year. Basically a nice hobby.

The interesting part is there is a large metal curtain that I keep closed behind the vending machines where I have access to 7 outlets (1 used by vending machines) and two taps/sinks and the buildings internet. None of which I pay for, I just pay my $200 a month. Its an old building and I highly doubt they have the ability check power/water use per unit (about 20 units in the building, mine is obviously the smallest in the lobby). The unit was empty for years and the buildings management are just happy to have something there.

I've been speculating in Bitcoin for ~2 years, increasing my position from 1% of my investments to ~10% of my investments in July as i have gone further and further down the rabbit hole.

I want to start a small mining operation and grow it slowly over time. There is a chance i continue renting this space for 10+ years. Potentially starting with a ~2500$ investment. I am thinking a hydro bitmain miner s21e because i have access to water and I cant be too loud in the lobby, although I've read some sketchy things on here about bitmain customer service.

I am going through YouTube videos like Red Fox Crypto and Crypto Mining Lab. But there isn't a lot to go off from beginning to end and not much here on Reddit that I can find. Mostly people saying unless you have zero cost electricity its not worth it.

Is there a good hydro miner for beginners tutorial somewhere that I have missed?

Do i need to test the outlets to see if they can handle the power? I good part of this building is it has a massive generator out back, so the power never stops, even in an outage.

Besides getting caught and me being a beginner does anyone see any red flags why this will not work?

What software is generally used when mining? I have an old laptop that can be used.

Any reputable companies that offer assistance in starting out a small mining operation? I'd pay for a consultation or a few hours of support.

Although i am new to this space, i am a technologist and can usually pick things up fairly quickly

Bitcoin-mining smart rod makes you money while heating your home water

When running this command from the braiins toolbox, what version is restored?

The original version that was removed from the device, or is it some other version such as the latest release from the bitmain website?

Documentation doesn't seem to show this information and I cannot locate it anywhere else via web search.

We've got a great deal on the Bitmain Antminer S21e Hyd for anyone looking to expand their Bitcoin mining operation.

Specs:

• Hashrate: 310 TH/s
• Power: 5,270W
• Efficiency: 17 J/TH
• Algorithm: SHA-256
• Price: $1,730 ($5.58/TH)

A solid option for miners looking to add hashrate at a competitive price.

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Lately i started getting w-07 error. Miner blink green but actually its disconnected from the pool/panel - needs reset with 5 second of RST button into defaults.

Ideas what this can be about?

https://wilsonmining.io/pages/hosting-rates

Ive done a lot of searching and all I can find is bitaxe threads. Not sure if that is directly applicable to the s21xp, even if chips are the same.

Braiins defaults to 80c "hot" temps which is where it would start reducing power. What is the actual max chip temp, and what is the best efficiency range for chip temp?

I have dps on, continuous tuning on, and a 3245w power target. Its cold in the morning so chip temps are in the high 50s with mcr health showing yellow on all 3 boards.

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*DDP may not be available for all destinations or miner weights.

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I purchased a Avalon Q with an 8 inch shroud. I attached 8 inch ducting to the exhaust shroud and have a tolazy inline duct fan on the pulling the hot air and pushing it through my house. Now the problem is when I the the duct is fully attached to the miners shroud it stops hashing even at the lowest fan speed. It seems to only work when I put the duct near the exhaust of the miner but not directly on it. If anyone has any advice on how to get the miner to hash normally while the ducting is attached directly to the miner that would be great!

Sky is grey, temperature is dropping.
Heat up your space while you mine Bitcoin.
Same watts, double duty.

The Avalon Mini 3 is a perfect space heater.

✌🏻

Following up on my runtime question, how would you choose the actual Bitcoin miner if it could only run about 6 hours a day on surplus solar?

A used ASIC costs less upfront, but a less efficient machine would produce less hashrate within the same available power. A newer model could make better use of that electricity, but there are fewer operating hours to recover the extra purchase cost.

Would you compare the purchase price per TH/s first, or focus more on efficiency and repair risk?

I’d also want to compare both options with hosting through oneminers or compass mining, including electricity, fees, and realistic uptime. Has anyone run these numbers and found that the cheaper ASIC actually made more sense? What assumptions changed your decision?

Just covered the miner with acoustic insulation panels I got it for free. Sound is a lot better but just wondering if there is a better way to do this. Will find a spare time to build a box.

Hello everyone, I’ve received a Whatsminer M50S with a faulty hashboard, but I don’t have the test file for this model. Could someone provide me with the file so I can flash it onto a control board and use it for testing?

We wanted to see what was actually inside the Avalon Mini 3, so we took one apart and documented the process.

Alongside the teardown, we tested the miner's hashrate and noise levels in different operating modes.

For anyone considering one for home mining or heat reuse, we thought it would be useful to show the internal hardware and real-world performance rather than relying entirely on advertised specifications.

Full teardown and testing:
https://altairtech.io/avalon-mini-3-teardown-guide/

Silencer kit with emulators, and braiins OS installed.

Is there any reason to put braiins on immersion mode and ignore fans altogether in this scenario? Does it even matter?

I’ve been mining with smaller units like Bitaxe, Gamma, and I’m thinking about stepping up to a higher-power miner that could also help heat my room this winter. The room is about 12' × 14'. Would an 800W miner actually make a noticeable difference, or would it only work as supplemental heat?

If you’ve run a miner as a space heater, I’d love to hear your experience. How well did it heat your room, and how did you deal with noise and electricity costs?

Mein neuer nexus S1 -4Hydro....frisch eingetroffen. Der erste blick ist vielversprechend. Cooler 3d Druck. Optisch ein hingucker. Und die performance! 18 Th bei 12,7w/h....echte spitzenklasse für ein home mining gerät

I understand if you’re willing to not operate at certain times the day you can get reduced cost electricity. Curtailed power I think it’s called. Where do I find that I’m in Washington, but I could locate almost anywhere if the power is cheap enough how does one going about accessing this source of inexpensive electricity?

Just got my first BTC miner ever Avalon Q just wondering if anyone has used this miner designed for at home mining and if they have enjoyed it or has any thoughts on it thanks!

Not sure what I'm missing here.

The agent shows Connected in the web dashboard. I've tried adding the miner by single IP and also setting a range. The agent never discovers the thing.

I can access the miner (which is on April 2025 bitmain firmware) fine from my web browser. I can ping it. The agent is running on the same computer and is on the same 192.168.68.x IP address as the s21xp. The miner also has the stock credential/login and hasn't been modified.

Only odd thing I noticed is that if I go into Commander in the webui, then click on Miners, it shows no sites selected even though I have one created. If I click the dropdown carat, it's there, but I can't click the box for the site or the select all box. Just won't let me. Attempts to plug the IP of the miner into the Search box on this screen result in "no miners match your current filters".

Thanks

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And Many More!

Z15 Pro/ Non Pro firmware available FOR FREE!

https://805mining.com/product/805-mining-z15-firmware/

📈 Ready to scale up? 

We have availability at our co-hosting location, and have sites available for purchase! 🏠

⚡️ Got cheap power? 

Snag our bulk used machines for a fast ROI!

🏠 Looking for Hosting? 

Air starting at 7.75c.

🏭 Dreaming of your own crypt or ai farm? 

Book a consult or explore our turnkey solutions today! We offer Project Management, Site Maintenance, and custom tailor our solution to you!

SOLUTIONS WITH POWER ALL THE WAY DOWN TO 3.5C ALL IN!

Pushing Your Machine to the Max? We offer custom firmware and parts for your projects!

Installed for $60/machine

Custom Teardowns for immersion

805 Cryptoservices – Your one-stop shop for crypto success, at ANY scale! 💪

Visit us at 805mining.com

*DDP may not be available in all destinations or miner weight.

** Projected Revenue based off of time of ad creation. Revenue Fluctuates by the minute.

I have electricity at about $0.022/kWh from 11 PM to 7 AM. I’m having two dedicated 240V 20A circuits installed in my garage with NEMA 6-20R outlets.

Thinking about buying two used ASIC miners and running them only during those 8 cheap hours. Not looking to spend a ton upfront.

Any recommendations on which used miners would make the most sense? Is 8 hours a day enough to get a decent ROI, or does the limited runtime make it not worthwhile?

Also curious about heat/noise and whether WiFi is fine instead of Ethernet.

Following up on my 10 kW solar and 3 kW Bitcoin miner example, would underclocking be worth considering instead of running the ASIC at full power?

With no battery, surplus solar would change throughout the day. I’m wondering whether running at a lower power setting for longer would make more sense than mining at full power for a shorter window.

The numbers I’d want to compare are actual wall power, hashrate, and efficiency at each setting. I’d also include a hosting quote from oneminers or compass mining as another option, using the same hardware and mining assumptions.

Has anyone measured their Bitcoin ASIC at different power settings? Where did you find the best balance between watts, hashrate, and daily BTC earned?