It's not, the term "best share" is misunderstood and this is probably how you came up with this "solution" which I have to sadly inform you that it is wrong.

Your miner's first submitted share can be diff-1, or in plain English the closest to hitting a block without solving it, and then it mines for twice the "projected" time and still never finds a block, on the other hand,  your miner can mine for a year with the best share not being remotely close to a quarter of the difficulty at any given time, and then out of nowhere - it hits 2 blocks in a row!!. There is absolutely no linear relationship between your actual luck and the best share you submit, in fact, there is no relationship between your luck in hitting the first block and your luck in the second block.

Remember that POW has no record or memory of your previous shares, whether it's 1 or diff-1 it doesn't matter, it's like rolling a dice, every single roll is completely independent of both the past and future once.

What is the best Watts per TH you achieved for this type of cooling with a single board? also, it would be best if you ask the "mystery maker" about the max temp their chips can handle, 80 is pretty good for the regular BM1387B/ BM1387 chips but it could be a bit high for the new chips, so better safe than sorry, especially that you are planning on selling these gears, so it's not just about you losing a few boards, but also getting yourself in troubles with your clients.

Good luck with this great project phill, let me know if you need my help at any point.

Yes, it does.


Phill, this is pretty normal, I ran a custom firmware on a few gears and some of them needed over 10 hours, some even need a whole day to actually stop rebooting, the reason why this happens is the fact that the step-down settings are set at minimum to ensure that you are getting the best of each chip, so even if 50 chips are lowered to the frequency they like and you are left with 1 chip that needs to go lower, say chip 5

chip no 5 > frequency 450 > run for 5 mins > collect results > bad > lower frequency to current frequency -1
chip no 5 > frequency 449 > run for 5 mins > collect results > bad > lower frequency to current frequency -1

sometimes a chip may only run well at say 350, so that's nearly a 100 steps-down if each reporting cycle needs 5 mins that's 400 mins or nearly 7 hours, and then eventually that bad chip might actually not like the voltage at all, and then voltage needs to be changed and the auto-tune starts all over again, so you should allow more time, let them tune for 24 hours, if they fail, then go with the lower settings.

You can only know your luck status AFTER you hit a block, anything that happens before that means absolutely nothing, if the current diff is 1000 and your share is 999 it doesn't mean your luck is 99%, remember that every share your miner/s submit is completely independent and has nothing "not the smallest thing" to do with the share it's going to submit next, this makes estimating the time that a relatively small miner needs to hit a block hardly accurate, don't bother with these numbers unless for fun.

I tried and mine also doesn't show anything on solochance, read back a few pages I found


So doesn't seem like a new issue, something is up with solochance.com, Morguk the owner of solochance.com, so he is aware of this issue, he will probably fix it soon.

meanwhile, you could simply manually enter your hash rate in TH to see what your chances are and if you want to do the whole calculation manually, you could scroll back a few pages and you will find my comment explaining how these estimations actually work, it's plain simple, but solochance.com does it in a simple GUI friendly way.

"وَمَا أُوتِيتُم مِّنَ الْعِلْمِ إِلَّا قَلِيلًا", الانسان يتعلم حتى الموت اخي, وكلنا وقعنا في في اخطاء, في الواقع وبما انك فتحت نقاش في هدا الموضوع لزم التوضيح بأن النسب المذكورة في تعليقي السابق لا تزال مغلوطة نوعا ما, او بالاحرى لا تصل الى المعاير المعمول بها في الكتب والارشادات.

اولا يجب بدايتا الاخد بتقيم الباور سبلاي, الجميع يعرف ان يوجد انواع مختلفة من حيت الاستهلاك, تصنف بتصنفيات Gold, bronze وغيرها, لنفهم هده المصطلحات




عند شرائك لباور سبلاي, يجب ان تعرف ماهي درجته ( الكفاءة) , ولنأخد مثلا  80 Plus ونفهم مادا يعني, تجاهل الجدول الايسر لانه لكهرباء 110 فولت, وركز على الجزء الايمن, ماذا تعني هده النسب؟ تعني الاستهلاك الفعلي للباور سبلاي, مثلا لو كان الباور سبلاي 1000 وات, وكانت النسبة 82% , يعني انه يوجد فاقد في الطاقة بنسبة 100-82 اي 18%

يعني عند استهلاك 1000 وات من الباور سبلاي, يقوم هوا بسحب 1180 وات من مصدر الطاقة, اي انه يوجد 180 وات فاقد في التحويل من مأخد الكهرباء الى مخرج الباور سبلاي, احيانا ترا ان شخصان على اليتويتوب يعملون ريفيو على نفس الكرت, بنفس الاعدادات وتجد احدهم يقول ان السحب من المأخد الكهربائي مثلا 120 وات, والاخر يقول 130 وات, والناس لا يعرفون من يصدقو وفي الواقع كلاهما صادق.

الكرت التي يحتاج 100 وات سيستهلك 118 وات باستخدام باور سبلاي 80 + بينما يستهلك 108 وات على باور سبلاي بتقدير بلاتينيوم, الفرق يصبح اوضح عندما تكون تسعمل 6-8 كروت وتسحب 1000 وات من الباور سبلاي, طبعا الكفاءة تختلف ايضا باختلاف التحميل, عندما تستعمل 50% من طاقة الباور سبلاي تحصل على افضل كفاءة ( راجع الجدول).


الان نأخد جانب المنظم الكهربائي, او حتى اختيار سمك كيبل الكهرباء او المفاتيح الفرعية mcb البعض يقوم بحسبة استهلاك الاجهزة مثلا 20 يقوم بشراء مفتاح 20 امبير وهد غير صحيح, يجب ان ندع مجال مالايقل عن 20%, انا افضل 25% نظرا لان الارقام الموجودة على المفاتيح او الاسلاك او المنظمات لاتكون دائما دقيقة.

يعني 25% + الفاقد من الباور سبلاي, لو كان مثلا 80 plus يكون 18% يعني الاجمالي 43%

يعني نقوم بضرب الاستهلاك في 1.43 , لو كان الاستهلاك 1 كيلو وات, يجب ان يكون المنظم الكهربائي او المفاتيح او الاسلاك تستحمل مالا يقل عن 1.43 كيلو وات, طبعا هدا باعتبار انك تستعمل 100% من الباور سبلاي, لو كنت تستعمل مثلا 80% منه اي تستعمل مثلا 800 وات من باور 1000 وات, تقوم بضرب 800*1.43.

اتمنى ان يكون الشرح بسيط ومفهوم, ولاي استفسار انا حاضر.

الاخ يحى اعطاك اجابة اكتر من ممتازة, بأستتناء اني لا اثفق معه في ان انقطاع التيار الكهربائي ينقص من عمر الكرت, اما بأستتناء هدا فكل شي قاله انا اوافق عليه بشدة, كما شرح لك الاخ يحى ان وحدة التغدية او المحول او الباور سبلاي او Power supply (هم نفس القطعة ولكن المسميات تختلف) هي من يتأتر بمشاكل التيار الكهربائي, ولكن هناك جانب مشرق وهوا ان معظم الباورات الخاصة بكروت الشاشة  تدعم تيار من 100 - 240 فولت, على عكس باورات ال ASIC , مما يعني ان تذتذب التيار لن يكون له تأثير قوي على الباور سبلاي, ولكن الخوف كما اسلفت هوا في عودة التيار الكهربائي اما قوي او ضعيف جدا, لحسن الحظ انه يوجد طرق للمساعدة في الحماية وهي

1- شراء حماية ضد الفولت العالي او المنخفض مثل هده https://www.amazon.com/Voltage-Protector-Brownout-Refrigerator-Appliance/dp/B00JBMSHBC/ref=sr_1_5?crid=3FW17J5YDXWOA&dchild=1&keywords=voltage+protector&qid=1591884670&sprefix=voltage+pr%2Caps%2C462&sr=8-5

طبعا الرابط فقط للتوضيح لان هده الحماية تعمل على 110 فولت فقط, ولكن يمكن ان تجد مثلها في محلات القطع الكهربئاية في بلدك وثمنها ليس غالي, يمكن ايضا شرائها اون لاين في حال عدم توفرها, فقط تأكد انها اولا تعدم نفس الفولت الموجود في بلدك على الاخل 220-240 , وايضا امبير كافي لتشغيل الباور سبلاي, لحساب الامبير تقوم قسمة قوة الباور سبلاي على 220 , مثلا لو كان الباور سبلا 800 وات, يعني 800 قسمة 220 بالامبير 3.6 امبير, بالاحتياط الحماية يجب ان تكون 5 امبير او اكثر.


2- الاطفاء اليدوي للجهاز عند انقطاع الكهرباء, باستعمال القاطع او الزر الموجود على الباور سبلاي on/off, وبعد عودة التيار, انتظر لفترة 2-3 دقائق وبعدها قم بتشغيله.

3- الحال المثالي والاكثر كلفة هوا شراء متبت او منظم للجهد و voltage regulator / voltage stabilizer مثل الموجود في هده الصور https://www.google.com/search?q=voltage+stabilizer&sxsrf=ALeKk02mUFdJ3ys4na5SWJoAvReeb7373w:1591884965695&source=lnms&tbm=isch&sa=X&ved=2ahUKEwjo1JzP-fnpAhUQC-wKHRBYC2QQ_AUoAXoECBAQAw&biw=1366&bih=663

ميزة منظم الجهد ان يضمن لك ان الباور سبلاي دائما تصله كهرباء تابتة, يعني كأنك تشتغل جهازك في سويسرا او اليابان  , طبعا تحتاج لان يكون المنظم اكبر من التي يستهلكها الباور سبلاي بنسبة لا تقل عن 25% يعني 800 وات باور سبلاي يحتاج على الاقل منظم 1000 وات , لكي يكون المنظم مرتاح عند التشغيل.

اشتري كرت واحد فقط للتجربة ولتتعلم كيف تعمل overclock وكيف تدخل الاعدادات وكيف تختار حوض التعدين و و و, وعندما تصبح على دراية بهده الاشياء يمكنك التطوير.


هدا يعتمد تماما على تكلفة الكرت فهيا تختلف من مكان لاخر وبلد لاخر, لذلك لايوجد نوع افضل من نوع لكل شخص وكل مكان, يمكنك استخدام whattomine.com لتأخد فكرة عن دخل كل كرت, وثم تقوم بحسابك تكلفتهم بناء على المتاح لديك, وتقرر ايهم الافضل اقتصاديا.


التعدين بكروت الشاشة لم يعد يأتي بمدخول كبير كالسابق ولكن طالما ان هناك ناس تعدن اليوم يعني انه مزال هناك للربح, المشكلة هي في توقيتك اخي الكريم, فسبب فايروس كارونا والمظاهارات في امريكيا تشهد معظم  مكونات الكومبيوتر شح شديد في العرض وغلاء في السعر, الافضل ان تنتظر فترة شهر او شهرين حتى تعود الحياة الى وضعها الطبيعي ويكون كل شي متاح بسعره المنطقي.

The middle board usually runs a lot hotter than the two on the sides because the fan's motor kind of blocks the airflow so you might want to place the new board in the middle to give a better cooling for the other two boards, also I think the 90 degrees temp is not too bad given that they sit in a noise reduction box.

Good luck.

هل يوجد قسم اعلانات في قسم العملات البديلة؟ كل ماراه هوا القسم الرئيسي وقسم النقاشات, واعتقد انهم يجب ان يبقو كما هوا عليه


لا ارى اي داعي لهدا, يمكن استخدام القسم الرئيسي لمثل هده الاغراض.


ربما, تبدو فكرة جيدة بالنسبة لي.


لا اعتقد ان المشرف يخطط لارشفة قسم العملات البديلة كله, وببساطة من وجهة نظري هدا فعل خاطء على اي حال, بالرغم من عدم اهتامي بذلك القسم الا انه لايمكننا ان نفرض وجهات نظرنا على غيرنا, قسم العملات البديلة الانجليزي يعتبر من اكثر الاقسام نشاطا بالرغم من ان الاغلبية لا يحبونه, حتى وان كان ملاذ لعملات النصب والسبام ليس من العدل ولا المنطق ان نستغنى عنه.

I don't think the pool is not allowing the address to mine on it, he probably has a problem with his miner/internet and not the address he uses, how can a pool tell the difference between a legacy address which belongs BCH/BTC, it can't because there is no difference between the addresses.

136CrBTFqaLShQVTzhH2MRUauRrrzP7JbG is a valid P2PKH/Pay To Pubkey Hash bitcoin address, even if that address was generated from a BCH wallet, it can still receive a BTC block reward provided he has the private key for it, someone please correct me if I am mistaken.  

I will keep the biggest mistake to myself since that was really really really the stupidest thing one can do, it was 3-4 years ago and probably nobody can fall for it now, so there is really no need to talk about it now because it's embarrassing, but when the right time comes, I will tell the story.

My second biggest mistake:

"A picture is worth a thousand words"



Antminer S9k, I lost track of how many boards I lost, we did some cleaning and found these and I am about to take them to a "special" garbage dump myself because the truck driver refused to take them since they are made of steel-like materials he said.  

The number of the hash boards in the picture alone is about 40 (majority is S9k, maybe 2-3 S9j) that's about 13 S9ks, I brought those in an attempt to "revive' them, but never had the mood nor the time for that, plus it was never worth it to begin with, we still have about 50-60 toasted boards at the farm, so at the best-case scenario there is probably 30 bricked S9ks + shipping that is about $10,000 wasted on nothing, most of those gears didn't run long enough to ROI the shipping cost.

Why do I call this a mistake and not bad luck? because I was reading on telegram mining groups from "random" people talking about how bad the S9ks were, and I simply ignored them thinking Bitmain can't make such terrible gears with such a failure rate, I hope this serves as a lesson not just in regards to the S9ks but to the fact that when people share their experience - you should NOT ignore it.

This seems like a control board went bad, I am afraid there isn't much that can be done about it.

If it has an Ip-report button you should try it, also if there is a way to Sdflash it that might fix it, meanwhile look for a spare control board, you can buy a used one for cheap.

That is another lie, a while ago i linked an article which was likely translated from a Chinese one, that talked about Chinese miners complain about the exact same problem we all have 'heatsinks/chips falling apart', apparently the mining whales in China have some private WeChat groups, and that's where Jihan Wu hangs around, Jihan Wu begged the Chinese miners to give bitmain another chance with the S19 after admitting the 17 series had some major quality issues, those reports came from CHINA from CHINESE miners, so saying "new miners rarely have such problems in china is a straight out lie" unless he thinks that 30% or higher failure rate is considered "rare".

This, of course, does not negate the fact that the Chinese miners get a special pass, Jihan Wu never apologized or begged us, he probably never bothers about the forum, or other non-Chinese groups on telegram and Facebook, but when the Chinese miners complain he listens, heck he even offered to send them staff on site to have the faulty 17 series fixed at NO cost.

Antminer T17e has a locate function which can be activated from the web browser like so



For S9k and S9se, if you don't want to use any 3rd party firmware/tool you could simply add any character to your pool setting to make the pool or worker details invalid, your miner will flash the red led indefinitely and that should be enough time for you to locate the machine, if you don't own a lot of miners and all of them are within your line of sight, a simple reboot will do, you will notice a different led combination on the miner that is booting up vs the once that are mining.

This guy knows a lot more than those bots who usually reply to most of us, but the logic behind his explanation is plain stupid, saying "The advantage is that easy is easy to disassemble" is like saying "We made this car with a strong engine but we hang it using a zip-tie so you can remove it whenever you need", so if that guy is not lying, he is simply stupid, simply because how often do you need to disassemble those chips?  almost NEVER, how often do you need them to stick and not drop? ALWAYS!

The only advantage I can think of is that low-temperature solder paste cost way less than high-temperature solder paste, making thousands of gears, it means soldering millions of chips, 100,000 miners with 30 chips each, using a cheaper paste saves you hypnotically 1.1 cents per chip or 1$ per miner, that's a $100,000, you make 200,000 miners, you save twice as much, this assumes $1 cost reduction per miner which of course is just a random number that could potentially be a lot higher.

If there is really any advantage (related to the subject) aside from cost reduction for low-temp paste vs high-temp paste, I would like to know about it.

I suggest that you label each new/used equipment if you really want to get rid of them, $150 for an rx580 8gb is within range if it's brand new and way overpriced if it's used, and the same applies to the other parts, and since you are selling many of them, most readers will think that they all are used in mining and not worth the price asked, just my 2 sats.

عند عودة التيار الكهربائي بعد انقطاع من المصدر قد ياتي بفولتية عالية جدا..طبعا الوضع يختلف من دولة لدولة بناء على البنية التحتية للكهرباء..اعتقد انه معظم الدول العربية لا تمتلك بنية تحية جيدة للطاقة.. مثلا في بلدي احيانا عند رجوع الكهرباء بعض المعدات الكهربائية تعطل..متأكد انا الكثير منا قد سمع بمثل هده المشاكل.

المحولات اقصد بها الباور سبلاي..لا اعرف ان كانت الترجمة العربية خاطئة.. اجهزة التعدين تشتغل على DC في العادة 12-20 فولت..ولكن المصدر يكون AC 110-240 فولت على حسب الباور سبلاي.

يعني لاسمح الله حدث مشكلة في الكهرباء الضحية سيكون الباور سبلاي وليس الماينر نفسه.. وصلت الفكرة؟

This makes sense, it was my initial thought until I successfully managed to telnet to port 3333 on your pool, at that point I thought it could be something else, but well - things are what they are, censorship is everywhere and we can't do much about it.



Ok then that's cool, should the demand on the server grow and you need to upgrade or you can't afford to keep the server or even decide to not want to, do let the community know, we will most certainly help out even outside of ckpool funds.

I would like to thank you for the efforts you put in fighting mining sensorchip and providing a way for people who live far from the U.S to mine on cksolo, keep up the good work.

I confirm this, i was trying to help user banche to connect to cksolo pool without luck, after osolo messaged me about the forwarding/relay service we did test it for banche and it worked very well, the pool connects and hashrate does show on cksolo pool status, this will be a very useful service to those wishing to use the pool but can't due to technical or political reasons.

I would also suggest that a part from the donation funds get used to support the us relay server if the other contributors and phill agrees to that.

Using this service it means you somehow have to trust o solo miner and i can vouch for him to be very well trusted.