Avalon 841, got like 40 of them, they suck to be honest, they are far from stable according to my own experience when i compare them to other gears, however, to be completely fair i got them used not brand new.

With that said, and seeing people complain about the newer models of Avalons, i will probably not buy any of them in the near future. 

You don't need UPS, you need a voltage stabilizer/ regulator, keep in mind these terms get abused by marketing, some label that tiny stuff you plug in the wall as "voltage stabilizer 230v" to trick you into thinking that they will step up the voltage if it goes below that while in fact, all they do is cut the output when voltage drops, that's more like "voltage protector", the stabilizer I am talking about consist of real transformer that is capable of actually providing a 220v output regardless of the input (of course within its' promised range).

NT (Chinese) and Lioa (Vietnamese) make some good voltage stabilizers at a very good price, I have tried both but I prefer Lioa, they have different types and prices, the main difference would be the size in KW and the lower bound voltage, as it ranges from 50v to 150v, the ones that can bring 50v up to 220V will cost a lot more, just be careful with sizing these stabilizers, if it says 20KW you only get to draw that much if the difference between the input voltage and the out voltage is almost nothing, the lower the input voltage gets the less of an output capacity you get, below is a simple chart made by Lioa explaining that



Source: http://lioa.com.vn/en/san-pham/ap-ap-1-pha/automatic-voltage-stabilizer-1-phase-0

An example, if your input voltage is 90v, you lose half the capacity, also keep in mind most of these products state the capacity in KVA which isn't exactly the same as a KW, you should always use a power factor of 0.85 to be somehow safe.

So a 20KVA stabilizer gives you a max capacity of 17KW, say your lowest input voltage is 150V, then you lose another 25% so that leaves you with no more than 12.75kw.

NotFuzzyWarm could probably chime in with more "electrical knowledge" since mine is pretty limited.

See the irony, we are now happy with 23k btc and 2.7T difficulty  .


Anyway, the pace has slowed, even more, we should adjust to the next epoch in 2 hours at most, we will go back to Feb - March levels, sadly the price at that time 2x the current price.

                       

اعتقد ان تسمية منصات الاقتراض او الاقراض بمنصات يعتبر غير عادل نسبيا, ان قارنا منصة باينانس ب منصة سيلسيوس سنجد ان الفرق شاسع, باينانس مثلا قائمة اساسا على التداول بينما سيلسيوس فهيا قائمة على الاقراض, فلا نستغرب تصريحات محامين الشركة بقولهم "مستخدمي سيليوس تخلو عن حقهم القانوني في اموالهم بمجرد ارسالها الىنا" وقد تضايق الكثير من الناس من هده الجملة بينما وفي الواقع انا هده الجملة صحيحة بنسبة 100% لانه عند استخدامك لهده المصنة ان تقوم "باقراض" اموالك "لشخص ما" في مقابل الحصول على نسبة عالية من "الارباح" ولايوجد اي ضمانات من ذلك الشخص.

طبعا الجميع يعلم انه من الغباء استخدام منصات التداول لتخزين العملات, بالرغم من انا منصات التداول أمن من منصات التداول بمراحل, مما يعني ان وضع اموالك في منصات الاقراض يعتبر غباء مركب من وجهة نظري, من المؤسف ان كل دروس الماضي لم تفيد هاؤولاء الاشخاص, ولكن يبدو ان هده غريزة بشرية, لانه من الصعب على الانسان التعلم من اخطاء غيره ويجب ان يخطاء بنفسه لكي يتعلم.

Delete the first point because it's not related to this board and your topic might be moved to altcoin because of that.

You also forgot to mention the most common issue, which is incomplete chip count on one of the hash boards, that gets your miner into a restart loop to infinity.

Good efforts, keep it up.

Almost everyone does the math right, it's really pretty simple, takes a few seconds to calculate, and once you know parameters it just doesn't get easier, it's 5th-grade math at best, but what EVERYONE doesn't have is a crystal ball, if difficulty doubles half way it means only the first half of your bitcoin matches the current figures, the other half will be 2x more difficult which makes the overall calculation off by 50%.

Also, none of the parameters used in the equation is constant, not even the power rate we pay today is guaranteed to be the same next month, so you have an ever-changing difficulty figure, a variable power cost, other unknown costs, all of these models are hardly accurate, you can save today's numbers and look at them a year later, you will laugh at how inaccurate they were.

An example, many people who bought the 17 series when they first landed thought they would recover their investment in 6 months, it has been almost 3 years now, most of them are yet to see ROI (including myself), if you told anyone the same shit back then, they would think you are crazy, if you tell someone today that paying 0.25 BTC for S19 is going to look terrible next year, they will laugh at you.

So long story short, nobody knows how much it will really cost anybody (not even themselves) to mine bitcoin.

I agree, in fact, not even on different sites might be needed, I think oil/gas prices will come crashing in a few months, you can't have a bad economy and high oil/gas prices, where will the demand come from? if there is enough demand to keep driving power prices up then there will be enough money to keep moving assets' value higher, given that Russia has only reduced its production by 25% it seems like the high prices are mainly due to the western sanctions which force them to buy Russian oil at a higher price from the 3rd party like India, but eventually, demand will slow down and prices should fall which gives more room for many miners to keep on mining for a good while.

25- mikeywith

Thanks for the free raffle.

That is what the free basic Braiins firmware do, even some of the stock firmware allow you to adjust the frequency and voltage, you can get fan simulators to bypass the fan check.

However, that is not what custom firmware does, as I said, it does a lot more, you can do your own research i won't be listing all the features for you here.

More like 6 days if you are talking about 100% luck, but that is some serious hashrate to be honest, to rent 200PH for a whole day you are going to need just about a whole bitcoin, not sure who did that, you need to have a lot of money and a few huge balls to take such a gamble.

You said


Which is why I thought you and a few other people left the company, sorry my bad.

So in that case, can folks in this community like scottp1111 contact you directly and provide you with their gears information so you can try and help them in any way you can? I am asking this question because of what you mentioned about the bad manamgnet and the need for clients to get in touch with the tech person who is working on their gear, I also want to help this community to the best of my ablitity which is why I go out of my way and ask you if you can "speed things up" for them, now that applies to old gears stuck at ASIC Master or gears that are yet to be sent.

I will understand if your answer would be "NO" and that they have to take the default slow route.

Let me get this straight,are do you no longer work with (Asic Master LLC Repair DEPT 3231 S HALSTED ST. Unit 273 CHICAGO IL 60608 USA), or are you planning to leave? your answer will then open the door for a few questions which hopefully you will have the time to answer.

@scottp1111, sorry to hear to your story, but this has been so common I find it hard to be/act surprised.

The problem with all the repair companies is the lack of staff, and what made things even worse was the 17 series Bitmain made, people bought them new and then a few months later half of them at least needed repair, the failure rate was overwhelming.

I think we will not see such thing in the near future, as most of those gears are hardly making any profits and people moved to better gears that have very low failure rates.

A lot has changed in the past 300-400 blocks, the current numbers are:

         


We know a good part (if not most) of this is due to power issues caused by the heatwaves in Texas, but this isn't sustainable, I think of this like the rainy season in China back then when miners had to shut down for a while when water levels go below a certain level, but it's only a matter of time to bring them back up, the only difference is that the Chinese back then moved their miners to different locations, as for now and with the size of the operations in Texas, they will not have a choice but to wait for the weather to cool down.

My opinion on the tiny bit that seems to have sparked the "attack between a few reputable members" which is "The proof of Royse's conversations with Lucy", in my humble opinion such proof has little to no value, at least, it shouldn't be the backbone of any conclusion someone arrives at.  Royse could easily fake a few conversations dating back to any date they chose, even the blockchain transactions could have been set up, there is no way in hell to know for sure if there was another person with the name of Lucy who is/was not actually Royse777.

So that leaves us with only one option and that's what Royse claims, it's either you take Royse's for it or you don't, if you think Royse was Lucy all along and then a few "screenshots" would change your mind -- I think there is something seriously wrong with your judgment.

Personally, I believe Royse is a genuine person, maybe she got a bit greedy and saw a "huge opportunity" which she didn't want to lose, which led her to ignore all the obvious red flags which then resulted in a loss for everyone who was involved, one might say that her judgment is not to be trusted and that would make sense, but again, I don't think she had any intention to cause damage.

I asked this question a few times before but he usually gets aggressive and avoid answering, I do respect Kano's decision not allowing custom firmware that either 1- violate Cgminer license 2- has no proof of finding blocks to mine to his pool, that's a great moral to have enforced, but he is cherry-picking all the stuff he wants, if he was genuine he would ban every other Bitmain miner except S9 and older models, did Bitmain provide the source code for the S19j pro firmware? does Kano has any proof of it finding any blocks, so why let Bitmain slide but not the others?



Any links to the story?

11 months to fix a miner is really unacceptable, the gear value has probably dropped by half at best, more like 60-70%, but I hope they arrive functioning so you can at least sell them for some price and recover the repair fees and maybe a bit of extra money on top.

Thank you for the updates.


Thanks for introducing yourself, would be good if you can share some of the average prices the company charges to fix some gears, at least the popular ones, of course, if those are not confidential info.

ماهي العملة التي تريد تعدينها؟ حوض التعدين الذي اشرت اليه لي يعتبر صغير نسبيا, وايضا ليس معروف يعني انه محفوف بالعديد من المخاطر التي يطول شرحها وربما تحتاج لموضوع مستقل لكي لا نخرج من صلب الموضوع, شخصيا لن اقوم بالتعدين عليه الا ان كان هناك سبب منطقي مثل وجود عرض بتخفيض الرسوم وحتى بوجود مثل هده العروض يجب ان اتأكد من طريقة الدفع ان كانت PPS or PPLNS وكل هده التفاصيل غير موجودة في الموقع لذلك من الافضل الاتبعاد عنه.

يوجد الكثير من الشكاوى بخصوص مزود الطاقة "الباور سبلاي" الخاص بسلسلة ال 19 من شركة بتماين, على الاغلب الحل الوحيد هوا شراء باور سبلاي جديد.

اما بخصوص الجهد, هده الاجهزة تحتاج على الاقل الى 200 فولت و 245-250 كحد اقصى, تغديتها خارج هدا النطاق سوف يسبب في تلفها, ايضا تقلب الفولتية يسبب لها المشاكل, يعني حتى لو كان التقلب ضمن النطاق المذكور لن يكون هناك اي ضمانة بان الباور سبلاي لن يعطل نظرا لان محول التيار المستمر DC يعتمد على التيار المار في كويل التيار المتردد AC الذي يأتي من المأخد, وعندك تغير فولت الدخول سوف هناك ارهاق لمحول الخروج, لذلك يجب عليك شراء منظم جهد وتركيبه قبل مأخد الباور سبلاي.

Ya, that sounds really ridiculous, even if you were to very accurately calculate the average worldwide cost for mining BTC, it does not mean the price can't go below that, for many reasons but i will just list two.

1- Newly mined coins make only a fraction of the available supply, if it costs miners 15k it doesn't mean other people who own bitcoin won't sell it for 10k!
2- When the mining cost exceeds a certain level, some miners will drop and thus reducing the global average cost, say it's 15k now, if we fall to 10k in price, enough miners will shut down to make it profitable for the remaining, there will always be someone who mines bitcoin as long as it's the price is above 0, even if price dropped to a fraction of a cent, one guy would be mining it with his old Nokia.

The only number that any asset can't go below would be 0, with the exception of things like oil contracts.