I have 5x 401’s right now.  I’ve had a few of those big 1.2-1.4th but 3 of the 5 hover above 820-850gh and the other 2 are all in the high 700s (780-790). 625MHz and 1250 for voltage.

Years upon years ago when I had our farm (2014) and we were using about 140-150A @ 208v I had a calculation that took all of that formula and then even converted it to how many TONs of a/c I would need. I will say as a few others have posted outdoor units can/will be loud.

Fast forward to today at my personal home.
I have a ~50ft x 60ft x 20ft (roughly 3000 sq ft) shop/garage that was built around 4 years ago. It has vapor barriers under with the concrete, every bit of insulation that can be done (minus bay doors, which I may do soon but they are automatic rollups so always been hesitant), 2x 5 TON A/C units that are mounted from the ceiling to cool it down. I live southeast of Houston so I am closer to the Gulf of Mexico which means humidity is something I always have to fight. One thing as a user or two posted is depending on time of day where the sun is hitting the building there will be hot spots in different places and that can take a wicked hit to things.

Another thing though is humidity, and this is where I've had friends that own HVAC companies, and this did come up with my mothers companies small data center (we are a reseller for IBM/DELL/Pure Storage/etc. etc. so we have a large amount of equipment to demo) that you still have to battle humidity. Last summer I did not take that into account in my personal shop, I was just using the AC's to help pull humidity out. I was mining Etherium in Minerdude/Octominer chassis with 3090s and I started to notice the heatsinks/fans/etc showing signs of dew on them and oxidizing things. I was in no way overpowering my AC's considering the heat produced from that was no issue for the amount of BTU's available from the AC. After Eth mining was done I was getting annoyed because leaving cardboard, etc became a problem. I ended up recently adding 20,000 CFM in fans (just 2x wall mounted 10,000 CFM fans to cycle the air) and it has helped a lot when the AC is running where as before even with everything sealed humidity was still not manageable. Though in the evening when things cool down and the AC isn't taking as much load. I am having to add a large de-humidifier (shows up Thursday) to hopefully be the final peace of the puzzle.

Maybe someone else can chime in on there being a problem with humidity because lets say you in theory could keep close to ambient, there is still large risk of failure to equipment at that point from humid air taking its tole on equipment fast.

He will come back with how he can convert something in his house to a 3 phase connector 380v breaker/plug and just implement it with his custom watercooled solution to work in place of the AntSpace solution they were designed for.  Still spending so much more to make it work but "Hey he will save that $1 in power" instead of just understanding what everyone is trying to say that it's cheaper and easier to run 2x 125T units.  To each their own I guess?

LOL!  No there will not be...  Not officially from Bitmain that's for damn sure!  The XP Hydro is a datacenter solution...  It's not meant to be turned down that's why you can't even buy a single unit from them.  I know you keep thinking that will change I am sure.  You are living in a dream world about Bitmain that's for sure.

I agree if you did go down to one single board I'm sure at some point there could be someone that could knock the power usage down.  As far as taking the PSU off though I do not think it is possible with the way the S19 is but I could be wrong since it uses a bus bar for all of it's connections.

But his idea is to have a unit on a low power mode while hes at home and then just kick it to mine at it's rated capacity while hes not at home.  Which would not be possible with out having to make hardware modifications if he were to setup the fans that way and remove the other two boards. 

Now if he had an S19 with a broken hashboard it would make sense, but he wants to do this with buying an S19 new (or atleast in full working order to do so).

Regardless of it using close to the same amount of power as an electric furnace for a house...  How do you expect to move air around the entire house?  That is literally what a furnace does in a house, it is moving the air to the vents in your home, apartment, trailer, etc.  And before you try to say "But it could be done" like your watercooling theory you can't just throw the unit in and hope it moves enough air unless your house is 8x8 lol.  I'm sure you've watched a few YouTube videos where people try and do it...  Go look back it doesn't work to warm up a house you still need your heater.  BitcoinSoloMiner do you actually own any ASIC miners or familiar with them at all as in hands on experience?  Have you ever heard how loud an S19 is even in "LOW POWER MODE"?  Even back in the S1 days when they could easily run on 110V power they weren't quiet. 

And Stompix is right when summer comes around you have to battle the same heat that the S19 is putting out in the winter, it doesn't magically become an AC for your house.  So now it's summer and in order to counteract the heat you have to run the AC even more because Power = Heat regardless of how you put it.  So now you have to dissipate your 2400W of power being used by cranking the AC even more, and your idea of letting it run in non lower power while your gone is going to cost you even more. 

Plus in 3 years reselling it down the line...  Again I get it you are new to bitcoin but 3 year old hardware doesn't bring anywhere near the money you think it does...  Plus this isn't something you can run on 110V power like the S9 so people buying them used to just play with or make a heater with aren't going to want to buy.  Any major mining companies deal directly with bitmain so why would they want 3 year old and horribly inefficient hardware (by then)?

So apparently you know more than everyone in btc which currently has a market cap of 445 billion USD at the time of writing this.  So that you can find ways that nobody else has and you plan on finding these secrets of bitcoin.  Trust me there are people a LOT more intelligent than you developing the ASIC's, software, etc themselves for large companies such as Bitmain, Canaan, etc.  You would think if there were these special secrets still out there that they would have found this YEARS ago...  You act like btc hasn't been worth anything until recently which is funny to me calling everyone old timers that got out of it.  Even in 6-7 months in 2014 I made a VERY nice amount myself on btcguild with a maximum of 19 TH/s (103-105btc from mining alone...). 

Also if the Cgminer code base is so bad then why is it still used by so many?  I've used it since 2014 myself as I preferred it over Bfgminer.  If you understood how GPL licensing works you would understand the frustration people like Kano have with some of the manufactures that use the basis of code by him and CK and keep it closed source to hide said information.

The other ignorance I see from many people when they sit there and trash on Kano's pool, do you realize how much of a greater chance there is for a pool to have a solved block by a solo miner when CK's pool has around 25PH/s on solo and Kano (where I do have my sticks and r909s) which has a little more than 1.5PH/s.  Meanwhile the entire BTC networks hashrate is 276 EH/s so yeah solo mining a block or even a PPLNS pool has a LOT less of a chance.  It's funny when I mined during 2014 the network hashrate was only 80-110PH/s and back then unless you were someone like KNC, Bitmain, etc. you were NOT solo mining because finding a block was basically impossible.

The other thing I have noticed is that people do call you out on is that your closed source part of the pool software because for all people know you could set payouts to yourself and it continue that way with your "promise to pay it out".  You can trick some but the whole idea of bitcoin maximalist is just trying to get people new and uneducated to jump in and would never know if they got ripped off.  To make money in btc it takes money and lots of it...  To make close to a btc a day like I was doing in 2014 I figured the cost alone without factoring in cost alone to run the amount of power I would need it was getting close to a million alone. 

I am not trying to argue with you, but first it is not possible to underclock it that low as far as I am aware.  Second if you have ever used a Bitmain PSU you would know even that is note quiet which is why you see people using different ones than the supplied.  Lastly the idea is to use the extra power (watts) it creates due to its inefficiency to produce heat to warm a room.  It has NOTHING to do with what is more efficient. 

I understand what you are getting at as far as if it were possible to do so with an S19, but you are talking about using a $2000+ miner to do something that isn't what the idea is for.  People either already own S9's previously or buying them for $100-$200 to have a small heater due to waste heat from energy that can solo mine.  It's just a little more expensive space heater for your feet/room that could possibly hit the btc lotto.

I mean anything is possible but the work to cool just a single 5000w unit (17000BTU/hr of cooling needed) is kind of pointless.  Just would be smarter and cheaper to buy multiple non-watercooled units.  Don't get me wrong the performance and everything is nice but to have a single unit vs multiple non-watercooled that ends up hashing more for the same price just seems smarter.

Replying to both of you.  The reason it can't be had in a single is because it is designed to run in the Antspace environment.  A single unit does not come with a radiator and all of the components and you can't just throw a little 360mm radiator and bs pump to cool the thing.  It is a 5200W miner which means you have to be able to dissipate 5200W of power.  Power = heat, and think of it this way a full watercooled PC using the highest TDP CPU and GPU setup is still under 700W (and I'm being nice on that) that still runs "warm", imagine it trying to keep up with something that requires a bare minimum of 7 times the amount of power.

No and it won't be for a long while.  Unless you want to have a "space heater" that even downclocked using 2000-2500W of 220V power that still requires a deafening fan from both the PSU and miner itself at your feet.  This is for old gear that you aren't trying to get massive hashrates.

Got mine ordered as well!

I've seen some of your posts and I'd love to know how someone who registered here in 2022, will not buy bitcoin unless it can't be tracked, is interested in brute forcing addresses, etc. has any real idea or outlook into everything mining related.  I see you do hashing rentals but I'm almost willing to bet you've never even had your own miner or setup anything with it.  If you think Kano is some mean person you obviously had never seen some of the other old mining software developers belittling anyone who questioned them over the years.  I don't like replying to post in regards to most with like the CompacF because honestly people are lazy as hell and refuse to read the thread where their questions have already been answered.  So I could completely understand being tired of answering questions, even though technically it is not his job to do so. 

As far as being publicly viewed, having to make a username and sign up isn't "public" as you are trying to make it.  That would be the same as joining an internet forum and dumping user data that's only available once joined.  You have been able to do that with most pools over the years (even if it is just their usernames and not addresses), but again...  You seem to just be insanely butthurt about someone who you honestly have NO fucking clue who they are because well you are new.... 

I've been active here since December 2013, but I don't need the attention like many.  I don't gamble using bitcoin or any of that.  I joined when I started mining, which during my 6-8 months on PPS/PPLNS pools I mined over a 104btc on hardware I personally purchased, configured, maintained, and ran in my own shop.  No renting hashpower hoping to maybe hit a coin.  I have no problem with people like yourself, or anyone else doing hash rentals to hit something solo.  I do personally hope that anyone who does hits a block or two.  But for fuck sakes dude drop your little vendetta and worry about your block solvers group.  Also just because people are Legendary on the forum does not mean they know much about anything.  You can post on shit threads all over and work your way up to it.

So to me it seems like you are the equivalent to a Dooms Day Prepper for the Bitcoin world?  I don't mean that to come off as an attack, but this will be my 9th year on this forum and there are still trustworthy pools/solo pools you can mine on.  What I do notice though is you follow any project Kano is involved with because YOU want something changed.  I am sure like you said there are others but it's YOU that follows into Sidehack's product releases talking about how it's not truly something.  Which as of right now and for the forseeable future it is as I do not see pools disappearing for awhile, and by the time they do this hardware will be the equiv to running an Antminer U1 on a modern day pool.

Another analogy when it comes to the end of the pools, would be again comparing a person watching for the end of the world and prepping for it.  It would be the same as calling every gun manufacturer and complaining that even though they only make the firearm that nobody will be able to make bullets for it if the world were to come to an end.  You are literally worried about something that isn't a problem and have been all over any Gekkoscience release because Kano is involved. 

So how about you set up your own stratum server and run instead of worrying about mining directly to Bitcoin core?  OR, how about you pay to have your own developer right a new miner specifically for people like you and the others you mention and then you don't have to follow people like Kano and Sidehack constantly trying to tell people that it's not a solo miner because in the future you can't just mine directly to core? 

Looks like I am going to have to grab a few!  Good work Sidehack and crew!

If you are messing with the voltage pot without having the usb power meter in on a stick already having issues you are basically shooting in the dark.  I’ve seen people try to tell you that you can do it without it, but again it doesn’t always work.

And Sidehack is right they test for 24hr and every one of mine has been fine at 400mhz from the day I got them.  Some did get finicky as I went higher, hince why I literally have hours tuning every single stick individually to run them where they are today at 575mhz.

Also what are you using for cooling?  The fan you maybe using may not be enough especially if you have tweaked the voltage and it’s now too high.  I’ve had some that even slight adjustments went to stupid amounts fast and they would get INCREDIBLY hot.

Also what is your start script like what voltage do you have them ramp up from?

Intel has developed a btc specific ASIC but has not released it to the public.  It is even in articles on their website…

Do you know what an ASIC actually is?  ASIC = Application Specific Integrated Circuit…  Most companies use them for all different things…. It is a chip developed to do one thing and one thing only.  The ones developed for BTC mining cannot be used by network security companies, but ones that use ASIC’s for things like encryption standards, etc are a completely different in the sense of what they are “programmed” to do.  Hell your TV at home has ASICs in it…

If you are using a server PSU you can.  I have one that I bought from Parallelminer or whatever the company is.  Mine is powered by a server PSU and a breakout board now as well.  I was originally just using a normal PSU for temporary but I had some extra server PSU from gpu mining so I swapped over to that. 

I don't get any power for my fans from the Gekko hub.  I use my PSU's 4pin plugs and power all of them off of those. 

Yup thank you for pointing that out because I was thinking in my case where until I got new gekko hubs I had to double up at share the 6A which at 550MHz I had all sharing plenty happy with head room.

I have a few that run perfect at 2.85-2.9A but like 2 of them are just bastards that won't be stable unless they jump between 2.98-3.08A.  Those I have labeled in case one of the hubs has to be doubled up for that exact reason.