How do you know that SSH is enabled on the S19 pro? What I heard is that S19 comes with no SSH, not even ssh daemon, which makes sense because it's unlikely that Bitmain will enable SSH again after all these years of disabling it by default while adding more security to prevent replacing the firmware as well as altering the miner's frequency and voltage.

If you are 100% sure that SSH is enabled, I could contact a few people to try and get you the password, please do let me know how did you reach to this conclusion:

سلامات اخي , الحمد لله انك عديت مرحلة الخطر على خير واتمنى لك الشفاء العاجل, انا اثفق مع الاخ خالد فأنا لم الاحظ اي تقصير من حضرتك, اعتقد انه في هده المرحلة يجب ان تركز على صحتك فالمنتدى يمكن ان ينتظر اما صحة الانسان هي اثمن شي.

اسئل الله لك الشفاء التام.

I don't think so, no where in the kernel log where it mentions anything about overheating, it isn't possible because the miner only starts mining after this stage


Whatever happens before is just testing the temp-sensors to see if they are reporting valid readings, the temps in the kernel log imply that the sensor readings aren't accurate and that's due to a bad PSU or dead Asics on certain hashboards, but without seeing the complete kernel log and all the other details we requested, all we can do is speculate.

As far as I know, CZ didn't ask for blockchain rollback after the hack/s, he talked about how is it possible and what are the pros and cons, and he mentioned "we decided NOT to pursue the re-org approach." Source: https://twitter.com/cz_binance/status/1125996194734399488


The mining wallets are separated from the exchange wallets, your mining rewards aren't tradable until you move them to your spot/future wallets, also given the fact that this is a PPS pool, it simply means the liquidity is already at their disposal, whatever they mine will go to the miner after deducting the 2.5% fees, in some cases they will be paying more than the mine, so all in all, I think this has nothing to do with market rates.

Having said that, the reason why I decided to give Binance pool a go is because I was looking for an alternative to Viabtc, while Viabtc is without a doubt one of the best PPS pools out there, the fact that it's controlled by Bitmain makes me not want to mine there, F2pool surprisingly restrict certain countries from mining, this is th reason why I would love to have a non-China based large PPS pool which sadly doesn't exist.

I need to see the following:

1- Miner status page (screenshot), use this website https://imgur.com/ to upload the image.
2- I need to see a complete kernel log, use the code function as explained by favebook.
3- Readings of the AC voltage.

With the above information, I might be able to help you troubleshoot the miner.

You need to replace the PSU, there isn't much of work arounds you can do fix this, your best option would be running a singel hash boards at pretty low settings until the new psu arrives, although if i were you i would shut it down and wait for the new psu to make sure i don't harm more things.

One thing worth mentioning that lower/higher voltage than what bitmain specifies will kill the new psu as well, make sure your voltage is between 200-240v.

فكرة جيدة ولكنها لن تنجح، بغض النظر عن التكلفة الاولية فأن توليد الكهرباء عبر الطاقة الحركية البشرية غير مجدي.

مثلا عند استعمال الة الدراجة الهوائية او التردميل للركض ستجد انه في حال الجري بسرعة متوسطة فكل ساعة تخبرك الالة انك قمت بحرق حوالي 500 سعرة حرارية هدا يعني 500 وات.. للاسف هده الطاقة المهدورة حوالي 75% تستعمل لجسدك وفقط 25% يدهب لالة التمرين يعني حوالي 125 وات كل ساعة.

بطارية 150 امبير تشتغل ب 12 فولت تقوم بتوليد 1800 وات يعني انت تحتاج للركض لمدة 14 ساعة لتشحن البطارية.

طبعا نحن تجاهلنا الفاقد في الطاقة لتبسيط الحسابات ..وعلى العموم 1800وات كفيلة بتشغيل جهاز antminer s9 دخل الجهاز حوالي دولار ونصف يوميا.

الامر قد يكون مجدي في المستقبل عندها يقل سعر البطاريات وتزيد كفائتها ويصبح توليد الطاقة الكهربائية من الطاقة الحركية ارخص واكثر كفاءة.

It's great that you started a different topic so that we can stop pumping that one.

Although I feel that the main point of discussion has shifted a bit here, I should make clear that I don't think other pools provide more details to their clients than Kano, I simply imply that those pools PROBABLY do have and collect all the data Kano collects.


This is my point exactly, a pool has 15% or 20% of the total hashrate, pays in PPS and has survived for years does have all the reasons in the world to monitor every share submitted to them, in fact, they have more incentives to do that than Kano or any other PPLNS mining pools.

From a financial standpoint, if 20% of the hashrate is programmed to not find shares here is the outcome:

PPLNS pools:

Users lose 20% - 20% of mining fees, so if they pay 1% in fees they will lose 19.75% while the pool only loses 20% of its fees which is 0.25%

FPPS pools:

Users lose nothing, Pool loses everything ( expect if the block fees are paid in PPLNS then the users will encounter a small loss which is 20% block fees - 20% of the pool block fees)

I can't possibly imagine that a small FPPS pool like sigmapool with just about 850PH will survive all these years if they had just about 30PH of no-block-finding hashrate, they would survive for a week or two, maybe a month but paying 4% more than they could "potentially" make would have sent them to bankruptcy a long time ago, unless the remaining 820PH always have 4% more luck which is very unlikely.

Looking at large pools like F2pool, antpool, or all the other large PPS pools, they would have been losing MILLIONS of dollars on a daily bases if they allowed blockless hashrate to mine to their pool.

I agree that "Absence of evidence is not evidence of absence" but I can't believe that every other pool except Kano has been losing money to block-less hashrate knowing they don't even need a professional dev to figure that out after all these years, all they need is an accountant with mediocre skills.

Assuming F2pool paid 10,000 BTC throughout 1 year and found out they have only mined 9,000 BTC they would have closed down or hired professionals (assuming they don't have any which is also unlikely) and they would have figured out that say 10% of the hashrate they have been paying for is blockless.

But none of that happened, no pool blocks rentals or custom firmware expect for Kano, I need to see a real unicorn first for me to believe that Kano is smarter than the rest of the world combined and that every pool except for his runs at loss.

Now as far as stats that the user gets to see, and since you are " spoiled when it comes to stats" I suggest you stick to Kano   because I am sure most pools don't provide as many details, you usually get the average data of:


Online for/since
Offline for/since
Current hashrate
1H hashrate
24 hashrate
Accepted %
Rejected %
Hashrate Chart per worker and subaccount


I have yet to see a large pool that will show you the number of shares, the largest share, diff, and all the other that shows in the image above.

Honestly, I would love to get all these data, but it isn't a big deal, as long as I get to see my hashrate and the acceptance rate, that's good enough, I wouldn't mind the extra details but I certainly wouldn't leave a mining pool just because it doesn't provide that.

So I decided to give Binance pool a shot and see how they do, and the experience wasn't the best I had.

First of all the user interface is quite annoying with little statistics, no monitoring application and overall nothing but basic features, but wasn't a much of a problem, until I suddenly noticed some weird stuff going on, the first time it happened a few days ago, total hashrate on the pool dropped about 30% on two different subaccounts, I checked the miners that were showing 0 hashrate on the pool they were mining just fine with shares getting accepted on Binance pool.

I contacted their support through live-chat and then while they were collecting information from me, I refreshed the page and everything was back to normal, a sudden increase from about 350th to 500th on one account and 250th to 350th on another.

The support told me "nobody reported such an incident" so indirectly suggesting that it's a problem on my side and provided me with the "technical team" email for further support, of course, I was lazy to go through all the trouble and just ignored it.

Mind you that the two accounts use different miners that are located in different geographical locations, with both farms having other gears mining to different pools and at the time of the hashrate drop on Binance pool every other miner on every other pool was hashing normally without a problem.

The strange thing is that they weren't showing offline/inactive, they were active at 0th.

Last night, as usual, I was checking the hashrate on the pool and damn the same thing happened again, I quickly went to check if all miners on other pools were reporting proper hashrate, and everything was perfect, check the miners that were reporting active with 0 hashrate on Binance and they were submitting shares to Binance pool without an issue.

The funny thing is that when that happened, even the 24h hashrate would drop to 0 and the rapidly climb back up to it's the normal hashrate.

I am not suggesting that Binance planned to steal my small hashrate and mine with it for an hour or so, I just think something is wrong with their pool, I am also not totally negating the fact that somehow "magically" only certain gears that are pointed to Binance pool were having an issue and the status on the webpage and aweomseminer was wrong, but I'd give that a 0.0001% chance.

The pool does have some good features like a watch-link where you get a URL to monitor your hashrate without having to log-in, you can also directly transfer funds from your Pool wallet to Spot/Future wallets to trade it for other coins or stack it or do many of the things you can do on Binance exchange, but the disadvantages overweight the advantages of this pool and It was a short-lived experience which I will probably never have with them again.

Without a doubt, the amount of air you need to force into the farm doesn't have to be equivalent, remember that the miners themselves are pulling air inside assuming the cold side of the farm isn't 100% sealed, but this doesn't mean you can get away with a few holes in the cold side wall, you need intake fans.

We do 9 in and 10 out,  so 80,000m3/h for exhaust and 72,000 m3/h for intake, I believe you could do 1:1 ratio assuming you have vents on the hot side of the farm but not in the cold side.

I believe the middle underscore _ means the wall/separator whereby the miner will go through it, just like the average set-up most of us use to isolate the miner's intake from the heat.


He sure does, with only 5 meters in width there isn't enough room for the heat to sit in before crossing back to the cold section, and thus the exhaust will need a lot of work, I would use only shutters and fans and no walls.

The hot air wall would look something like

shutters - fan - shutters - fan - shutters - fan - shutters  - fan
fan - shutters  - fan - shutters - fan - shutters  - fan -shutters

This will result in a very good air extraction and if you haven't build the wall yet, it might even cost you less, all you need is galvanized steel pole tied vertically and horizontally creating squares/rectangles to hold the fans and the vents/shutters.

I am sure it can't be 9 meters high, so it's 9m for width, 5m for long and 4.5m for height, Kuwait has an extremely hot climate, above 40c/104f is pretty average around noon, that is a ton of heat he needs to get rid off.

I would stay away from evaporative cooling because the humidity it generates is more harmful than the heat on those miners, I can't give you a detailed advice, but for a 300kva/240kw worth of mining gears we currently have 19 8000m3/h aka 4708cfm fans, 10 for exhaust and 9 for intake, they are moving a ton of air and the miners are doing just fine even in extremely hot days, all gears are set to manual fixed speed of 100% (5000-6000rpms), and of course, no overclocking, in fact a few them are underclocked during the summer.

You could use that as a reference, but none of the above was based on scientific facts, it was simply trial and error which eventually worked fine.

That's a great point, as far as I know, germanium costs way more than Silicon, way harder to keep cold and but can achieve much higher frequency, but the fact that in most applications Silicon is the preferred semiconductor shows that up to now and perhaps in the near future there is no changing in that.


If 50k is going to be the end of it, then current gears can take care of that, perhaps another more 2-3 generations and then we hit the maximum, also I believe that the higher bitcoin price goes the less incentives to make more efficient gears, if BTC hit 100k even old S1s become profitable again, and once the profit margin is so huge, efficiency matters less.

in other words say antminer S25 does 200TH at 3000W, at 5 cents per kWh you will be paying $3.6 a day when 200TH make $20 a day, what reasons would you have to buy S27 that does 200TH at 2800W? 2.8kw is $3.36 a day that's 24 cents difference, by the time we get to S25, getting those 200w will cost way too much to be justifiable.

Should the price go down or remain constant, we will see mining manufacturers push to squeeze the last bit of their 7nm and 5nm.

نعم اخي يتوقعون ان الصعوبة ستنقص وهدا نظرا لسرعة ايجاد البلوكز المأخودة من السطر التاني Current Pace بناء على الارقام في الصورة يجب ان يكون هناك عدد 131 بلوك تم ايجاهدم في هده الدورة, الا انه تم ايجاد عددد 129 بلوك فقط, يعني اننا متاخرين بعدد 2 بلوك, وهدا يعني انه حاليا يوجد نقص في المعدنين عن المعدل الطبيعي المفترض لهده الدورة, طبعا نظرا لان الفارق بسيط وهده الدورة لاتزال في بدايتها يمكن ان يكون التأخر في ايجاد عدد 2 بلوك مبني على الحظ لا غير لذلك الارقام في بداية الذورة تكون بعيدة عن الواقع وكلما اقتربنا من النهاية زادت دقة هده الارقام.

اتمنى اني وفقت في الشرح.

الكثير من المعدنين يتخدون قرارات تخص هدا المجال بناء على التكهن بصعوبة البتكوين في المرحلة الحالية والمرحلة المقبلة ( 2016 بلوك الحالين والقادمين), وافضل موقع لهده الارقام بدون منازع هوا

https://diff.cryptothis.com/

يعرض الموقع بيانات مختلفة وعديدة

Latest Block: اخر بلوك تم ايجاده   
Current Pace: السرعة الحالية في ايجاد البلوك بالنسبة لهده الدورة
Previous Difficulty: الصعوبة السابقة                               
Current Difficulty: الصعوبة الحالية                            
Next Difficulty: الصعوبة المتوقعة
Next Difficulty Change: نسبة الزيادة المتوقعة   
Previous Retarget: اخر تعديل ونسبته
Next Retarget earliest: اقرب وقت متوقع للتغير   
Next Retarget latest:ابعد وقت متوقع للتغير
Projected Epoch Length: الزمن المتوقع لحصول تغير في الصعوبة.

   
حاليا صعوبة البتكوين في اعلى مستوياتها مند البداية ودخل التعدين (بالبتكوين) في اسواء حالته, ومع ذلك نظرا لاترفاع السعر في الفترة الاخيرة فأن الدخل بالدولار لازال جيد اعتمادا على تكلفة الطاقة لديك وطبعا نوع الاجهزة التي تمتلكها.

We just hit a new all-time high, how are you doing guys doing with these numbers?



https://btc.com/stats/diff

Looking at the difficulty chart especially the one to on the right (Log Scale) which is a better representation of large amounts of data points, you can clearly see the trend angle has started to flatten from mid-2019, what do you think is causing this? I believe there are mainly two reasons.

1- Technology improvements slow down the further we go, and we have gone so far since the first ASIC miner, it makes sense that mining gears efficiency starts to increase one bit at a time and no more 3x, 2x or even 1x more efficient gears.

2- Price hasn't kept up with difficulty, it has been 2.5 years since we made a new ATH in price, while we keep making new ATHs in difficulty even in bear markets.

My take on this hasn't changed, the days of crazy high jumps in difficulty are over, probably most gears that can be turned on are already mining and not much room is left, unless we see a considerable increment in price or a new invention in the electricity industry, nothing major is going to happen.

Ok so assuming what Kano claims is correct, does this mean every other pool that allows rental hashrate (almost all of them) lack the skills or don't have a KDB to keep records of all of the information needed to protect themselves? the pools that will suffer the most from this issue would be PPS pools, they have way more reasons to do that than Kano, yet, almost nobody does that but him, which means whatever he thinks he figured out was wrong unless Kano is smarter and have better resources than all those multi-billion $ pools, but even then you would at least expect these pools to close down when they end up paying for shares that were programmed to not find blocks.

You need to use APW9+ and not APW9, in other words any power supply that works on T17+ will work on S17e, T17e, S17+ and vice versa obviously, but T17, S17 and S17 pro use APW9 which won't work on your miner.

APW9 > S17, T17, S17pro

APW9+ > S17e, T17e, S17+, T17+

Great work phill, why does it say "failed" when the miner is hashing and everything seems to be normal? what criteria does the firmware use to evaluate what is a good tune vs bad tune?

Also, I am very interested in seeing how are you doing with power consumption comparison, assuming your goal is not a better temperature and you aim only for efficiency, would you still recommend the firmware?

الترجمة الالية هي بالتأكيد ضد قوانين المنتدى خصوصا عند الترجمة من الانجلزية لاحد اللغات الاخرى, طبعا لا اعتقد انه في حالتك هدا تعتبر مخالفة للقانون لانه من الواضح انك لما تستعمل الترجمة الالية لكل المقال وكان هناك جهد واضح من حضرتك, لذلك كلامي لم يكن يستند على القانوين بل فقط المتعارف عليه في القسم العربي حيت انه لدينا موضوع كامل خاص بترجمة المفردات الثقنية لنخافظ على نسق معين وواضح من الترجمة https://bitcointalk.org/index.php?topic=5097571.0.

اتمنى ان تقبل نقدي بصدر رحب فالغاية والغرض فقط للاستفادة العامة وليس الامر شخصي, مشكور على مجهوداتك