That's interesting, but look at the price of that shitcoin it seems like it hasn't gained much value during that period, nicehash payouts were crazy high around 18th to 20th of last April, it only went up about 25% from its price week prior to 18th, but even assuming for the sake of it that it did do a 100% jump, this doesn't really give miners the ability to pay 8 times higher the profit they would get mining bitcoin then.



I am not ruling out the rule this coin could have played in that period, I just don't think it's the primary cause, because, if its price had gone up 10 or 20 times, that would make sense but it has not, and based on that I still believe it was someone laundering his money as fast as they could.

It's also worth mentioning that the volume of btcv was just about average during that period, it does not indicate any unusual selling/buying, I would like to hear more on how you arrived at that conclusion just in case there is something I missed.


lol, so he just had to change the code and that's it? no hard fork nothing happened? probably just his node and the mining pool's node maintain this coin anyway.

اخ خالد اعتقد ان الاخ اوميقا يقصد العنوان المكونة حتى التي لم يتم استعمالها وليس العنواين التي "يمكن" تكوينه او انشائها في المستقبل, طبعا لان ذلك يحتاج ل seed الخاص بك, ,ولان تقريبا كل HD wallet تقوم ب generate لعنوان جديد بمجرد الارسال من العنوان الذي سبقه, سيكون هناك دائما عنوان معروف ولم يتم استعماله.

 موضوع رائع مشكور على الجهد

Are you saying this to comfort yourself?  , sorry to spoil the moment, nicehash did not pay you, it was that dude over-paying for your hashrate, he paid you handsomely, nicehash escrowed the deal and TOOK their fees from you, Nicehack still owes you 18%, I hope they will repay it soon, the nicehash community should demand it, because if not they might just discard the repayment program altogether.

لقد قمت بتحديث الموضوع واضافة تعليقك هدا فيه شكرا لك على التنبيه, على العموم اعتقد انهم يمسكون العصا من الوسط, لم يضيعو زبائنهم ولم يزعلو الحكومة, الحد الاقصى للمعاملات كبير جدا 10,000 يورو يوميا و 15,000 لكل حساب, سيقوم المستخدمين بانشاء حسابات جديدة ومتابعة الشراء, لا ادري ان كان الوضع سيستمر هكدا او سيقومو بفرض KYC قبل حتى محاولة الشراء, نتمنى ان يبقا الوضع كما هوا عليه.

@fillippone, you brought up a very interesting point, one of the main reasons why miners would mine empty blocks is what you mentioned about the "transactions of the last/previous block", validating the transactions of the previous block can take some time probably 10-20 seconds, large blocks may take over 20 seconds to validate, miners pay a ton of money during those 20 seconds, and if they happen to solve the puzzle before they were done with validating the transactions they would broadcast an empty block to avoid invalidation, however, since every hash is independent from every other hash, they lose nothing by including transactions ONCE they have verified them, but if they happen to solve the block BEFORE that, i don't see why would anyone refer to them as selfish miners, of course ignoring spy mining I see no economical benefit of purposely mining an empty block.

I don't think empty blocks are exactly bad, and assuming the average validation time is 15 seconds, it's safe to assume that empty blocks have a probability of 1-exp(-1/600) - 1-exp(-15/600) = 2.3% or every 43 blocks / 3 times a day, as long as we are not way above that, I think we are good.

Thanks for your input, I did contact zeusbtc's main branch china, and they told me quite a different story, not saying yours is wrong, but I think this one actually makes a lot more sense.

To summarize that article, they simply imply that if all temp sensors of all hash boards can't report their temp then it's a PSU problem ( not a very common issue), if however less than 3 boards 'normally 1' hash board shows the temp sensor error, then the problem is one of the chips/heatsinks and not actually the temp sensors.

The reason why I am 99% positive about the chip theory is due to the fact that the chances of FOUR sensors going down at once are very very very unlikely, those sensors don't produce much heat if any, they are located across different areas, I am not saying they will not fail, but highly unlikely for one of them to fail, let alone FOUR of them.

To strengthen this point further, based on the article sent to me by zeusbtc, they suspect that the bad chip is usually the first chip, so we tested a T17 board which was giving us the 4 sensors error by putting some pressure on the heatsinks of the 1st chip pushing them down really hard, i learned this method from a video on youtube on fixing S9s boards where he pushes his finger against the heat sink to see if it reports voltage, just kind of making sure the chip is actually in contact the board and the heatsink is in contact with the chip, as naive as it may sound to you, the board DID work and all temps are being read perfectly.

I, of course, don't expect this to last forever, it's a matter of time before the heatsink becomes loose again and we go back to square zero, but at least we are now pretty close to determining the exact problem of this common problem, and once I have physical access to that boards, I will remove that heat sink and put it back, but for now, all of this is done remotely with the help of a friend.

Anyone who has the same problem, please try the remedy, also keep in mind that it may not always be the 1st chip, but if you have a multimeter that reads diode's resistance you can easily identify the bad chip by measuring the heatsink against RST as shown here.

Antimer s11 has a few differences in design,  but removing hash boards is pretty much self-explanatory, refer to this guide
https://support.bitmain.com/hc/en-us/articles/360016346453-How-to-disassemble-the-hashboards-from-DR5-D5-

It is a different miner but almost identical, just follow the steps.

This minus the bolded part seems right, think of it this way, miners don't really just solve a "random block", they solve the next block randomly, every miner "assuming they are synced with others" have the last block's hash N and working towards N+1 in your example 628,001, the "solution" to that block is "random" but they are indeed are working on the same block height, however, once someone finds it they STOP mining that block and move forward to the next block N+1+1, but they don't WAIT 10 minutes, as soon as they find the solution they will propagate the block and start working again.

You should understand that there is no 10 min rule in the bitcoin code, nobody is stopping miners from finding 1000 blocks in 1000 seconds except statistics and probability, you can't tell for certain that miners won't solve that many blocks in such a short period of time, and if they do it, nobody will stop them, it's just a matter of CAN they do it, which is statistically difficult.

An update on the situation.

With the help of a friend, I was able to identify the part number of the sensors used on the S17 which is T45187JP9KY , apparently, there is nothing about that on google, so we had to check another miner to confirm, we found on the S9k the sensor part number is T45188J, so this gives us the idea that the sensors used on Bitmain boards must be (T451) which may be referred to as TMP451AIDQFR or simply "T451 Temperature Sensor".

Current Issues:

The temp sensors on the T17 are nowhere to be found ( this is all my friend doing the job so far as I don't have access to the hash boards at the moment), this leads me to think that they might be next to chips but UNDER the heatsinks, they are pretty small and they can pretty much fit in there, so if anyone has a T17 hash board and a good magnifier and is willing to contribute, kindly help us find those sensors, the info you needs is

- They must be 4
- They can't be located next to each other
- They likely have a label that starts with (T451....)

شخصيا افضل موقع https://imgbb.com/ على https://imgur.com/ لانه اسرع بالنسبة لي ربما لان السيرفر اقرب لموقعي وقد يكون الوقع متخلف بالنسبة للاشخاص الاخرين ولكن اعتقد انه يستحق التجربة فانا احيانا اقوم برفع صورة بجودة عالية وحجم كبير ونظرا لسرعة الانترنت هنا قد يأخد بعض الوقت اما مع imgbb الفرق شاسع.

You are going to get in trouble with the way you post, please follow this guide.

1- Always use CODE function when pasting a kernel log.
2-Do NOT quote my whole post.

Anyway, I am now almost sure that you have a bad PSU, what is the voltage of your house/farm? is it 220v ?

What you should try now is disconnect 2 boards and keep on 1 board only, don't just disconnect the ribbon data cable, unplug the boards from the power supply, try the 3 boards this way,

1-remove board 1 and 2 keep board 3
2-remove board 1 and 3 keep board 2
3-remove board 2 and 3 keep board 1

Do this with power-saving mode and the pool details I gave you, let me know how it goes, and please allow at least 30 mins before every trial, the miner needs a long enough time to start.

The problem is decribed here


This is most likely a PSU related issue, unless of course, the 3 hash board are dead, which is unlikely, however, let's not jump into conclusions so fast, your pool settings don't seem right to me, use the following details in the second pool

URL:


Worker:


Password:


if this fails, try resetting the miner and install the latest firmware.

True, I tried downloading it again and it gets stuck in the middle of the way, I will PM taserz and ask him to check the file, meanwhile you can get it from this link https://drive.google.com/file/d/1WeDRY_Xffeqot3Hlpx0rb2ZmCkMqP8h4/view?usp=sharing.

I don't think anyone except for bitmain runs any Antminer 19 series, they have not yet been delivered, as far as I know, we still have a few months to go before we start knowing about the common issues of these new gears, in fact we have only recently started to encounter all these issues with the 17s series, let alone the 19s, but I am willing to bet that they will not be much better as far as robustness is concerned.

Just a reminder, my set-up is far from perfect, however, after all these years I have come to realize that heat isn't really the main reason these gears get toasted or become useless, they either become obsolete due to profitability or fail due to bad "luck" or quality if I may call it. if you look at my topic which nc50lc quoted, I have two farms (currently building a new one), one had a very poor airflow, miners did run pretty hot almost all summer long, but the effect of that on the lifespan of those miners was almost NOTHING.

Add to that stories I have heard from various miners, some people who had a mediocre cooling reported less failure rate compared to those running their miners in high-quality data centers, I know many people who "go by the book" will criticize me for saying this, and they have the upper hand because their point is "scientific-based", I am telling you this because I believe you shouldn't go to the extreme about airflow.

Now the numbers:

Phill thinks that S17 move about 500cfm of air, assuming you have 5 of them, you will need to bring in 2500cfm and exhaust a little more than that, later on, if you think the airflow is not sufficient, you can add more fans.

I started a thread regarding the temp sensors, i have combined all the information available to me so far, will be adding more info, feel free to join and help.

What batteries? I assume you have electricity in the farm!, simply plug in the pc and it will be on forever, make sure you modify the motherboard settings to power on automatically if power cuts and come back.


Maybe start a different topic for that?

موضوع اقل مايقال عنه مضيعة للوقت, فهوا لايحتوي على اي معنى ولا اي سر كما يدعي, لم يضع مصدر للكلام التي اقتبسه, حتى كلمة POW لم يتم كتابتها بطريقة صحيحة, لايوجد شي يستحق ان تتعب نفسك لتفهمه لانه لايوجد شي اصلا بل هي اشبه بطلاسم سحر, هده الناس يجب ان توضع في السجون نظرا لاستخفافها بعقول القراء. 

في حال تمكنت من شراء بتكوين يمكنك من خلالها تحويل اي قيمة لاي عملة اخرى, لذلك نصحتك بأن تجد بائع محلي تشتري منه بتكوين او usdt


هل يوجد اي عقوبات اقتصادية على بلدك؟ ايضا هل اتصلت بالبنك وسئلتهم عن سبب رفضهم تحويل المبالغ للمنصات؟ يوجد مواقع اخرى مثل  coinmama تتيح لك الشراء بالبطاقة المصرفية ولكن المشكلة ان معظهم هده المواقع تطلب KYC, شخصيا لم اقم بتجربتها من قبل.

كلامهم منطقي, ان كانت المشكلة في منصة واحدة لكنا جزمنا ان المشكلة من المنصة ولكن يبدو ان المشكلة من البنك الذي اعطاك البطاقة, اما ان يكون توقع الاخ خالد هوا الصحيح, اما ان تكون البطاقة فعلا صالحة للشراء online ولكن البنك الذي اصدر البطاقة يرفض تحويل الاموال لشركات الكريبتو بناء على اوامر من البنك المركزي او الجهات المخولة, على العموم شراء بتكوين بالفيزا و الماستر كارد مكلف نوعا ما, محدود ومعقد ايضا, لماذا لا تشتري عن طريق الكاش من اشخاص في بلدك؟ فهده الطرق التي يتبعها معظم العرب.

الحل الاخر هوا عن طريق باي بال, يمكنك تحويل رصيد باي بال الى شخص ما في المنتدى وهو بدوره يحول لك بتكوين, المشكلة هي مسئلة الثقة لانك عضو جديد يمكن ان يكون هدا الموضوع صعب.