If you walk into a coffee shop and they don't charge you for the cup of coffee you drink then it's free as far as you are concerned, just because someone else pays for it doesn't change the fact, the same thing is true if you are forced by the law to walk into that coffee shop and pay 1$ per entry whether or not you drink the coffee or not.

In many places around the world,  essentials like electricity are subsidized by the government, yes the government is using your money to subsidize the electricity, but you can't ask them to give you that money in cash or give you apples instead.

Even in some "modernized" countries where power is not subsidized, some people pay for fixed contracts, say the minimum is 1000kWh and your house uses only half of that, you can't just buy 500kWh, so you are forced to get 1000kWh, the otherwise wasted 500kWh falls safely under the term "free".

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OP, no hashrate is ever enough for solo mining, just like no amount of money is enough to buy you enough lottery tickets to guarantee a win ( unless you buy all the tickets which don't make you win anything anyway).

With 110Th and assuming both price and difficulty will not change, you can easily earn $250 a month mining to a PPS/PPLNS pool, in 10-12 months you will ROI the mining gear and enjoy a stable almost guaranteed income of $250, makes a lot more sense than solo mining, if you insist on trying your luck, go ahead, you might as well just hit a block, but you need to be aware of the fact that it's extremely unlikely for that to happen, you need to be freaking lucky to hit a block with that hashrate.

نسمع مثل هده التصريحات حول البتكوين من مختلف الفئات, فكونه مدير مصرف بهدا الحجم لا يغير من الحقيقة بشي, المشكلة ان اغلب من يستمع لهدا الشخص او غيره لايعرفون كيف يعمل بروتوكول البتكوين, وعلى الاغلب يصقدون مثل هده الشائعات, لكي لا نذهب بعيدا, ان قمت بسؤال 10 اشخاص من معارفك حول كلام هدا الشخص فلن يقول لك احدهم ان من يحدد كمية البتكوين هوا الكود الموجود في العقد التي يشغلها الاف الاشخاص حول العالم, لا احد منهم يعرف هدا الكلام اصلا, ربما تجد 1 من 10 اشخاص يفهمون هدا الكلام ان سئلت السؤال لاشخاص لديهم قليل من المعرفة حول الكريبتو.

يجب ان لا ننسى اننا في هدا المنتدى لا نمتل حتى 0.01% من البشر, نحن عملة نادرة جدا, تخيل انك بمعلوماتك هده يمكن ان تقف اما مدير جي بي مورغان واخباره انه احمق وانه مخطيء بينما يعتقد اغلب البشر انه شخص متخصص في هدا المجال, نحن حرفيا نصنع التاريخ , اما باقي العوام من الناس يصقدون اي شخص يظهر على قنوات التلفزيون, انا لا استغرب ان كانت هده خطتهم لابطاء زخم الشراء او للعودة بالسعر للاسفل ليتمكنو من شراء البتكوين بسعر ارخص, في يوم ما, سيخرج هدا المعتوه على الهواء ليخبر الناس عن ميزات البتكوين.

هده النقطة خطيرة فقط في مخيلته لانه هدا الامر غير ممكن لان مؤسس البتكوين لا يمتلك الصلاحيات لتعديل لتغير الكم الاقصى للبتكوين, وهدا هوا العمود الفقري لقوة للعملة والسبب الرئيسي في نمو وازدهار وشهرة التبكوين من الاساس, فلولا وجود ضمانات بعدم تمكن شخص معين من زيادة العدد لما كان اكترت احد للبتكوين لانه عندها ستكون لا تختلف عن اي عملة مصرفية اخرى, لذلك مايقوله هدا الشخص مجرد هراء فقط, اما ناتج عن غباء, سوء فهم, لو لغاية في نفسه, واعتقد ان الاحتمال الاخير هوا الاقرب للصواب.

I heard they will start selling PDUs for these models, probably why they have chosen a non-standard cable for this.

As for the picture above which is floating all over the place on telegram, I think there is something wrong with it, at least the connector name, I think they are confusing it wit the SP13 which is used on the Hydro versions, those are round connectors with visible pins like nails, they come in 4 pins and 7 pins, those are certainly the ones they use on the Hydro version.


Anyway, the miner won't need those 25 amps rated on the PSU, should be fine to run it with their cables, unless you are worried about insurance and stuff like that then you will have some issues explaining to them why were you using such a cable.

It's good that you started a new topic for what seemed to be a bit off-topic in the other thread,  I don't think it was important to quote everything from that thread, it will be difficult for other members to follow the logic of the discussion.

I think it's better to sum up the whole thing in a single question.

When mining bitcoin within the same difficulty epoch, which one of the following is correct and why?

It's worth mentioning that since BCH is a fork of BTC, the merged-minable coins can also do with BCH just like BTC, you can merge mine namecoin or sys with BCH, namecoin with BTC, but not BCH with BTC using the same "hash".


Actually many modern pools already do that, I know Viabtc does it, Binance does it, those two "I have tried", and I am sure most of them will do the same, they call it"smart mining", you would have to use a specific port/URL for that, and they will do the "profit switching" on their pool, for Viabtc you can actually watch the hashrate chart and see different lines each has it's own color and represents what SHA256 coins you mined.

I did not use "smart mining" long enough to judge its profitability in comparison to mining just BTC, I didn't pull the numbers and made the required steps to get to an accurate answer, but I can say with a rough estimate that it had become pretty useless in the past couple of years. When Viabtc first deployed it, it made a lot of sense, a coin jumps in price, your hash goes there, Viabtc gets that coin, exchanges it for you to BTC, and you get more BTC than having mined BTC directly, but now that many people use it, it got saturated, the profiblabity across all SHA256 coins reach to equilibrium very fast, so fast that hardly anyone is benefiting from it.

They look dope, not sure how do they dispense the heat, I see no fans!, also they say it can hold 2*MicorBt miners or 1 Antminer, wouldn't it be wiser to load it with 2 WhatsMiner instead? the cost is a bit high, probably in the 1.5k range with shipping if not more, so dividing the cost by 2 could be a game changer if this is going to be used on a larger scale.

Also what about the liquid, is it included or do you have to your own?

Waw, March is a long way, any pics or links?



Exactly my concern, I can't stand the fact that I am not so excited about the last price increase, yes the farm makes more $$ but then gear prices are also doing the same, the problem with price increases is that miners increase more, in other words, the ROI gets longer both in BTC and $ when the price goes higher, sellers will negotiate less, supply will shrink, you can now buy 1 year ROI miner, later if we hit 30k it will be 1.4 years miner, the expansion becomes more difficult.
 
I am trying to rush ASAP to fill what's left in the farm space, the electricity infrastructure is no joke, it sucks a ton of liquidity, we just bought a 30M cable for like 0.2BTC  , it's a terrible time to be doing any infrastructure work, it's good we did most of it during the bull market but should have done better, hope someone reads this and benefit from it, if you are planning on building a farm, plan ahead, and build all the infrastructure in the bull market, even the things you are not going to use for years.

I tried the freezer thing on a few boards, there is a good chance the board might come back to life.




the tool doesn't really tell you which chip is bad, same for the other tools some are a lot better than zeus tool like "Asicrepair", all the tool does is give continues voltage to the hashboard so you can measure the pins, the firmware will only give that pulse for a few seconds and then stops, so you won't have enough time to measure the board, these tools make the job easier, but you will still need to read the manual and measure all required pins.

These tools will also give you a rough guess, a similar one to the one in the kernel log, your log says


So it's suggesting the issue is at chip no 14, could be 14 or the chip before/after it, could also be another chip for all that matters.

Hive OS is not that good, Braiins > I don't have enough experience with the firmware to judge, vnish (asic.to/awesome miner) I have a long experience with, but anyways, they should all do the trick of tuning the board to hopefully bring it back to life, the chances are slim but worth trying.

This is most likely a hardware issue, nothing much you can do about it, here are two things to try

1- Flash custom firmware like Vnish (use Awseomeiner or Asic.to distributions) chose a low power profile and let it tune for a couple of hours that might fix the issues
2- Unplug chain 2 which causes the problem, put it in a plastic bag, drop it in the freezer for a day, and plug it back.

if all fail, you will need to inspect the hash board and see if there are any solder balls accumulating underneath the heatsinks (shorting the chips), aside from that, you are going to need a tested and a lot of experience to fix it, I have personally threw away a dozen of these boards because I don't have what it takes to fix them and I have no time nor desire to learn how to fix them.

If it works for you at 6 cents, should work even better a 7.8 cents, , anyway, it works for me too, wish we can get above 10 cents sometime in the near future.

meanwhile, it seems like we are approaching flat, maybe even a small negative

alas, all of these mining manufacturers do the same stupid stuff every single day, MicroBT does something similar with their PSUs, they have a dozen of models, some output 12V some 14V, and in every voltage rating you got a handful of models, many are not cross-compatible, you ask the manufacturer at PSU model I am going to get? they will give you the same stupid answer that Bitmain gives "it's a surprise, you need to open the box first".

So after buying a dozen gears of the same model, you will end up with a dozen different PSUs that aren't cross-compatible, and it's a nightmare when it comes to spare parts.

I think I agree with Dave, it's all about the cost for all of these cheap manufacturers, if Bitmain finds another way to make a cheaper CB, they will add a 5th model to the same miner.

Only the black and red? did you not test all 4 wires against each other?

Does the miner power on with just 1 fan regardless of whether it's the top or bottom fan? also what is the result of switching the fan to the other port on the control board, does it change anything, or as long as 'any' single fan is plugged in 'any' port the miner works fine?

Anyway, the kernel log you posted confirms that you have a bad fan (or two), the simplest and cheapest thing would be 2 new fans, if the problem persists -- you have a bad control board.

Probably the former, nearly 400 blocks since you posted this one and the pace seems to have stabilized, right now the numbers are



Maybe Core has finally shut down the  >37,000 gears they run for Celsius, they talked about this in the beginning f the month, maybe it just happened, along with some other miners shut down, all I can say is "difficulty is crazy".

It's likely the fan is shorting the control board, you need to check the fan wires to make sure none of them is touching one another, could also be the plugs themselves, they could have melted inside and now are shorted, it will be near impossible and not worth the time to inspect those plugs, just get a replacement fan to make sure the issue is fan itself and not the control board.

Since I am 100% sure you can't merge mine BTC with BCH, if CK or any other pool which I use managed to magically break the law of physics, I personally forgive them with all my heart for using my hashrate to "merge" mine BCH. Anyway, anyone can claim anything, it's easy to do so, but these claims require strong evidence, even if you were right about it, nobody is going to believe you, in fact, you can't blame anyone who laughs at you when you claim something against a popular belief, so why not stop here and come back when you have a proof to support your claims so can laugh back at everyone else? just something to put forward for consideration.

I am not defending anyone here, but this question is just wrong, it's technically not possible to merge mine BTC and BCH, even if this question was pointed to Antpool or any other pool, my answer would remain the same, BCH does not support merged mining, it can't be "merged" as a secondary blockchain in the main BTC blockchain, other coins like NMC, SYS and EMC are merge-capable, and any pool that mines those merged coins can't hide it, the block header of those coins will be recorded in the BTC block itself, publically available for anyone to see.

Now some people who know the above technical fact will automatically think you are asking if "CK is stealing hashrate to mine other coins" which is probably why you got some harsh comments, however, if he was to steal say half of the hashrate pointed to his pool he could just mine BTC on another pool, do we know for certain that CK or any other solo pool isn't stealing your hashrate? there is technically no guaranteed solution to tackle this issue, it's either you trust the pool operator or you don't.

This leads us to why I told you (or the other guy) who started a solo mining pool that it likely won't work, when mining to a solo pool you need to trust the operator 100%, or else, you are going to be risking both your hashrate and the block you find, so nobody in their right mind would leave trusted pool that paid a dozen of blocks before and join a new pool which we don't even know if it's technically able to find blocks, let alone the trust issue itself.

No, it takes more than that, you need to inspect the page and change some parameters to un-hide the voltage and frequency settings, everything is explained in great detail in my topic which Bitmaxz posted the link to above, but just in case you missed the post, here is the link > https://bitcointalk.org/index.php?topic=5247179.0

Alas, this is where you both are getting confused, there is no such thing as "reset", you are not competing against any other miners, you are competing against the difficulty and your only weapon is the number of hashes, your luck doesn't reset with every block, it resets with every hash, every hash has the same exact chance of hitting a block regardless of the status of the network, other miners when was the last block found, who found it, or anything else.

Saying that you are competing against other miners suggests that if other miners pull out and stop hashing, your chances of hitting a block will increase, which is false, even if everyone else stops mining and you are left alone, your chances will change by 0%, if your initial chances were to hit a block in 10 days, it will still be the same.

In the first half of your post, it seems like you cleared the confusion, at least got the correct logic for the most part, but the quoted part is where things got messed up, it's a popular belief for many people to fall into, this is the inverse way of thinking that just because 9 minutes have passed since the last block, the chances to hit a block in the following 1 minute is higher, no, it doesn't work this way, every single share submitted to the network has exactly the same chance of hitting a block.

You need to ditch the idea that tells you that miners are mining the same exact same block, and you can only start mining a block when one is done, you need to understand that every hash is trying to mine its own block if it manages to do so, it simply tells the other miners "hey guys, I am going to name my block 1011, so please if any of you manages to find a block, use a different name "1012", don't let this give you the illusion that everyone is now mining block "1012" , NO! NO!, everyone is mining their own random block, and IF they hit one, they will name it "1012".

So long story short, there is no "RESET" here, every share CAN find a block at any given time, and the chances of your hashes hitting a block are 100% independent from every other hash anyone else has.


Now as to why using 144 blocks a day is perfectly valid, it's because the difficulty was set to ENSURE that IF the hashrate was stay constant (i.e the number of hashes for the period of 2 weeks) remains the same, the total shares combined will only find 144 blocks every 24 hours or 2016 in 2 weeks, or 1 every 10 mins, all valid representation of the code which simply calculate the total timespan between the last 2016 blocks against the target timespan which is 2 weeks in seconds.

To understand the last part more, you need to think of all miners as one miner (but please don't let this confuse you with the previous part), all miners combined have x amount of hashes to try, in theory, those x hashes combined will find a block every 10 mins.

If things are not crystal clear by now, I am sorry, I don't think I can make this any clearer, hopefully, someone else who knows how to explain things better can chime in.

Hard to say which one makes the best, it's not just the manufacturer, they differ from one model to another, the S9s that bitmain made were tanks, S17s was trash, and the S19 series is A LOT better than the 17 series, with some people complaining about bad PSU quality, whatsminer/microbt is knowing to make robust gears in general, in my personal experience and the people I know, whatsminer beats everything else (speaking of the newer gen miners) because both Avalon and Bitmain made some exceptional tanks back in the day.

Sadly, nothing is perfect, Whatsminers require more space (can't be spaced too close to one another), and they are generally less efficient and/or more expensive, and not much firmware options unlike Bitmain.