These are completely different theories, if the first one is correct then you need to manage the heat first or else you will face the same issue again, I am not familiar with Avalon miners, but almost everyone in this forum says they are robust, which means they should have some sort of heat-protection and not allow the miner to get hot enough to melt the miner's components.
 
So my guess is that the second theory is more likely and this is just a manufacturing defect due to inadequate quality control, which sadly you have to fix since you can't send the miner back (a problem which I face as well due to the shipping cost and other complications).


I believe he only needs the soldering iron, the heatgun has no use in this fix and it probably costs a lot more than the soldering iron.

Anyway, I would advise against him trying to fix it if he has no previous experience in soldering, it may seem like an easy job but it isn't.

Oh boy, a $50 coupon to make up for $3300 loss is nuts, i was not expecting them to send you a full refund, not even a half but most certainly not a $50 coupons.

It seems like they have gone broke or lost a ton of money during the past a few months, but you stay on it, stay persistent don't give up just yet.

Tell them you will go to court for this if they don't refund you some serious amount.

I agree that the article or in fact, most articles from that website are b.s, Ignore the rest of the article, i only referenced it to save myself the trouble of explaining how the hash ribbons indicator works.

Now it is up to you to believe or disbelieve that miners capitulation is a huge factor which effects price directly, this is is not a matter of a single coincidence or a few random events, it is simply humen psychology , just like the fear and greed indicator.

Miners bet on bitcoin price to go into their favour, and since the majority of miners lose money just like how the majority of traders lose money, it is essential to know when all of these people are capitulating because that is when the market is about to make a shift in direction, and of course, when they are optimistic and going all in, it is time to leave.

Having said that, this is yet another indicator which is subject to failure just like any other metrics people use to estimate price. 

احسنت اخي باضافتك لهدا الشرط حتى تتجنب المشاركات العشوائية, واشكرك جزيل الشكر على هده المسابقات التي تقدمها للقسم العربي.

ساختار الرقم 2 ان ممكن.


** اذا امتلائت الارقام وجاء شخص بعدي يمكن ان ياخد رقمي ان سمح الاخ coupable بهدا.

It isn't the only option, there are a few, even some of the large pools allow you to mine on solo-mode, there are a few others multi-coins pools that will allow you to solo mine just about all POW coins, but those pools are either hard to trust or hard to set-up, which makes solo.ckpool.org the best option for solo mining even with all the issues it faced in the past, which I hope that we won't encounter again in the future after the server upgrade.

It looks like the price drop didn't have any effect on difficulty.


Did bitmain deliver some of the pending S19/S19+ orders? hitting a new ATH with BTC price stuck in the 10k levels suggests that some people have got their hands on a large order of the latest gears.

What are the chances that Micree Zhan is actually mining with all the gears which they were supposed to ship? we know Micree Zhan control the manufacturer and warehouses, while Jihan Wu controls the headquarters and all the finance-related stuff, so if Micree has the gears and can't sell them on the official website, what stops him from using them to generate BTC or simply sell them directly to some local Chinese farms?

All 4 sensors are lost, we had a whole topic discussing this issue, this is certainly isn't a temp sensor issue but rather 1 or more heatsinks lost contact to the chips or the chip itself lost contact to the board, since the chip/heatsink hasn't fallen entirely, it will work at times and stop when it gets hot, in many cases people reported success by applying some pressure on all heatsinks in an attempt to stick that heatsink/chip since you can't tell which chip has gone bad, you will have to that to all chips.

Having said that, all of these solutions including trying a custom firmware are not long-term solutions, you need to fix that board or mine with it this way until it dies completely.

It is fairly accurate but not 100% accurate since bitcoin isn't a centralized organization where all miners are pointed to a single server, nobody has the real data of the total network hashrate, so most websites use the speed and the number of blocks found to determine the hashrate, so that makes it off by a bit, also a huge amount of the SHA256 hashrate runs on auto profit-switching, so it could be mining BTC for 20 mins and then jumps to another coin for 10 mins and so on.



The Hash Ribbon indicator has been on of the most accurate indicators through bitcoin history, it's based entirely on hashrate, indeed, you can't use hashrate to predict bitcoin price the next hour or two, but for mid-range timeframes, it does make a ton of sense in terms of predicting trend reveals.

https://cointelegraph.com/news/bitcoin-hash-ribbon-signal-confirms-great-bull-run-says-analyst

This is pretty strange given that (according to my understanding) all 3 hashboards are attached to the control board and PSU, what you would expect is


It seems like the control board can't even see the middle chain, make sure all ribbon cables are firmly attached and that the PSU busbars screws are well tightened.

Great to see that you are still working on the project and adding more mining gears to your support list, keep up the good work and try to focus on MicroBT gears because if Bitmain doesn't "wake up" soon, MicroBT might take over and dominate the mining gear industry for years to come.

If you need to translate to Arabic I might be able to help depending on the amount/type of words you need to translate, so no promises, but I will do by my best, also know that a few languages like Arabic, Urdu, Persian and Hebrew need RTL script direction, so that will need a bit more work than simply translating words from English.

You should accept the offer, the retailer can't send you a worse hashboard than the one you have unless if it doesn't work at all, the problem with your hashboard is very hard to fix, it isn't a matter of replacing a wire or a fan, you will need to locate the bad chip/s, remove them and then re-solder them on the board.

That might seem like an easy thing to do but it isn't, if you are lucky, putting some pressure on each of the heatsinks will be enough to take the bad chip off the hashboard (the bad chips on all the 17 series aren't exactly burned, they just have terrible connectivity due to cheap/bad solder paste) but that only solves half of the problem, the other half would be re-soldering that chip/heatsink back, and that is nowhere near easy and require a good level of skill and a set of tools.

In many cases, the heatsink/chip is indeed loose but not loose enough to fall under pressure, so you will need a fixture tool like this one just to know what chip/chips which need removing, and that tool isn't cheap by any means, knowing the bad chip/heat sink isn't the end, it's only the beginning, you will need a heat gun to remove it, a bit too much of heating and you could damage the board itself or make another good chip/heatsink lose contact to the board and thus create even more problems.

As long as the chip/heatsink hasn't completely fallen, then it all depends on your luck, it could run for a week then drop for a day then come back, it could do just fine for a few months, it could fall next week and never work again, so getting a replacement is the BEST option you have.

اخي كل تساؤولاتك موجودة في المنتدى وفي هدا القسم بالتحديد.

هدا الموضوع متعلق بموقع Nicehash https://bitcointalk.org/index.php?topic=5256532.msg54643779#msg54643779

وهدا الموضوع يناقش الفرق بين Solo mining / Pool Mining https://bitcointalk.org/index.php?topic=5200983.0

وهناك ايضا موضوع اخر يناقش طرق الدفع المختلفة لل Pool mining https://bitcointalk.org/index.php?topic=5260949.0

عند قرائتك للمواضيع الثلاثة ستتحصل على اجابة لاغلب التساؤلات التي لديك, وفي حال كان هناك جزء غير واضح تفضل بالسؤال وسأقوم باجباتك بعون الله.

I am interested, please post more details like quantity, are they 4gb/8gb, single fan/dual fan? also how many of them are used and how many are brand new, also if you have the other parts like PSUs, Mobos and ssds I will be interested in buying them as well.

Thanks.

It shouldn't be just "questionable" at this point, it should be "certain".

I have totally lost faith in Bitmain since last year, since the day they started using terrible thermal paste/solder and low-quality PSUs, I encountered a huge loss and 90% of the miners I bought from Bitmain except for S9/S9i/S9j have either lost a board or two, got a toasted PSU, arrived with fallen heatsinks, they are complete trash and everyone who doesn't plan on losing money on purpose should AVOID Bitmain for now and probably months/years to come.


I wouldn't take this route, I suggest you stay consistent in your communications with them, send them as many Emails as needed, be patient and polite and request a FULL refund at first, and then slowly settle down for less, negotiating with Bitmain is like negotiating with a hawker, it's nothing like the other professional multi-billion enterprises, so you need to use a different way of communicating and if you are persistent and consistent you will at least manage to get some refund in the end.

The math is rather simple, you need a few elements.

1- How much the rental collects > found here, you just need to sum it
2- The average rental price > https://www.nicehash.com/pricing

You should look for https SHA256 or SHA256AsicBoost   (side note for ailikun SHA256AsicBoost is usually cheaper)

Current prices are

0.0074 Minumum.
0.0097 - 0.0131 Fixed.

To ensure a stable hashrate for x period you would have to go with Fixed order/s to avoid interruptions, so that puts you somewhere around 0.01 BTC per PH per day.

the current total the rental has is 0.075 BTC so that gives you 7.5PH for 24 hours.

That is just a rough estimation, it can be off by quite a bit depending on how the rental goes, and how prices change.

To estimate your chances of hitting a block you would go to http://solochance.com/ , with 7.5PH you have 1 in 126 chance in a whole day,  or 1 in 18,165 for every block.

اولا لاداعي للاعتدار اخي هيوج فأنا اتفهم تماما ماهي وجهة نظرك خصوصا كونت ارسلت نصيب الاسد من نقاط الجدارة, ولكن ما احاول لفت انتباهك له هوا ان تنظر للموضوع من زاوية اخرى, اين دهبت تلك النقاط؟ تم اعطائها لمنشورات تستحق الجدارة, اين ذهبت تلك المنشورات؟ لاتزال هنا!

لا اريد ان افرض وجهة نظري ومعايري الخاصة في تقيم "النجاح" في القسم العربي, ولكن من وجهة نظري مقياس النجاح الاهم هوا اضافة محتوى مفيد للغير سواء من هده الاجيال او الاجيال القادمة, ومن هدا المعيار انا سعيد جدا جدا جدا بمستوى القسم العربي, لا يوجد اي موقع عربي اخر يحتوي على 10% من محتوى هدا القسم, هدا القسم ينافس اقسام اخرى كبيرة من حيث الجودة ولدينا اقل معدلات لل spam حتى الغشاشين الذين يستخدمون حسابات متعددة لجني الامول يضيفون محتوى ثقني رائع, بالله عليك اين تجد مثل هاؤولاء الاعضاء في الاقسام الاخرى؟

اثفق معك في ان العدد, المحتوى المرئي وعدة معاير اخرى تقيمنا فيها يعتبر سيء ولكن الاساس هوا المتحوى المعلوماتي المتعلق بثقنية البلوك تشين عامة والبتكوين خاصة, ماهي عناصره؟ التشفير؟ المحافظ؟ التعدين؟ الامان؟ البيع والشراء؟ تقريبا لدينا اشخاص يفهمون ويكتبون مواضيع متعلقة بكل شي يتعلق بالكريبتو, انا اطلع على الاقسام المحلية الاخرى ومعظمها مليئة بالسبام لدرجة تجعلك تفتخر بالقسم العربي بغض النظر عن قلة الاعضاء.

اتمنى ان تتقبل تعليقاتي بصدر رحب وانا متأكد انك ستفعل هدا فأنا لا اكن لك الا الاحترام والمودة, وغرضي من سرد هده الحقائق هوا ان اسلط الضوء على الجانب المشرق الذي قد لايراه البعض.

He knew he hit a block by looking at highest share on the pool status, his share wasn't broadcasted to the network fast enough due to ( what ck explained), so this means the stats on the pool are fine, if you ever get a block worthy share, you will know it, but then whether you do get the rewards or not - will depend on the pool performance and luck, and i assume we did solve the performance issues by upgrading to a much better server, as for luck, well sadly you can't do anything about it.


They sadly don't.

What I like about this topic is that we go into very deep details, I am sure most miners miss out on these critical points, sadly I haven't been thought this lesson by anyway and I had to learn it the hard way, one thing I learned is that you must always try to own the same gears, by "same gears" I don't mean the exact same model but at least models that use the same control board, PSU and fans.

Eventually, you will either lose a hashboard or a PSU, if you have 10 different mining gears, then you must buy 10 different spare PSUs, 10 fans, 10 control boards, etc, this does not make any sense economically, compare that to someone who has 50 gears of the same kind, in the worst-case scenario, they don't even need to get any spares, eventually when 3 boards are dead you end up with 2/4 fans, 1 PSU and 1 control board, so by limiting the number of different miners you can always be prepared for when the spare parts go out of stock.

What do you mean by actual $$? what does that $$ go for anyway? it goes to rent hashrate, so if someone would contribute DIRECTLY with hashrate it actually saves you money as a rental group because you don't have to pay him fees as you pay to nicehash.


Wrong, I don't know where the confusion is coming from, but this is like saying if you pay 0.01BTC for the rental you can only get 0.01BTC if a block is found, it's really isn't as complicated as you think, let's put this in a simple example.

Person A > pays 0.01 BTC to rent 500th for 24 hours
Person B > points 500th to the same worker for 24 hours

B would make $40 a day by mining to a PPS pool, but if he or person A hit a block he goes home with half a block, I hope that is clear?

Anyway, right now, nicehash pays about 15-20% more for miners, which means getting 300TH from that member is way better for the team than buying it from nicehash because then if you pay for 300TH you will only get about 250TH worth of hashrate, so if I was managing a rental I would rather get people to join using their hashrate than paying BTC.

Why not? if you guys manage to hit a block you can check his hashrate/shares and then pay him accordingly, all you have to do is get him to mine to the same wallet using a different worker, actually his idea sounds interesting to me, whoever doesn't have BTC in hand can contribute some hashrate, it will be a bit more difficult to manage once and if a block is hit, but as long as everything is planned for ahead of time then there should be no problems.