Not sure if this is done intentionally by Bitmain or just by chance, most custom firmware will stop the electricity flow in the chips when there is no connection to the pool because it does save power, which makes sense right? no mining going on, the miner shouldn't be consuming that much energy, however, the custom firmware in that aspect could be worse, first, you don't want your miner to get too hot, then too cold and then too hot in case your connection is going through a rough time.

The second point is that if the weather is wet, and your miner isn't generating any heat, yet, the fans are still spinning, water will condense around the miner and it will be  KaBOOM, so there isn't really a right or wrong way, both firmware custom and stock should give you an option as to what should happen when your miner isn't connected to the pool, and then depending on everybody's needs, they can choose what works for them.

I never liked the fan control of the stock firmware even on the older models, although it's not half as bad as it is with the S19 pro, they "could" fix that in future firmware releases but that could and will likely take forever, I see nothing wrong with setting static RPMs on your fans, it's what I have been doing for years and it works great, you will need to adjust it every couple of months (summer vs winter) and that's all about it.

شكرا لك اخ اوميقا على مواصلتك في تحديث المعلومات بخصوص هدا الموضوع واسف لانشغالي عنه بعض الشي, بناء على اقتراحك سوف اقوم باغلاق الموضوع.

Key word is "slow", hopping for difficulty to keep going down forever is wishful thinking, by default, it only goes up in the long run despite what the price does, based on that fact it would be great if difficulty goes up slowly and doesn't jump up by 50 or 100% in a few months.

They might as well just ask you to get lost and say you do not own any miners, thus, operating without being under a "legal umbrella" outside of your country is a huge risk, think about all the bad things that happened to those greedy folks who sent their miners thousands of miles away for cheap hosting, while many hosts were straight out scammers, some others were "smart" scammers, they would let your gear mine for say a month, and then tell you "The PSU was broken, you need to send a replacement or we can buy it for you locally to save you shipping time and cost", what choice do you have? pay them for the PSU, a few weeks later, the control board is dead, rinse and repeat.

It's completely impossible to conduct such business without

1- Being at the site physically

or

2- Trusting the other person 100%

Maintaining a large mining farm takes some serious manpower, do not listen to those who tell you it's just "plug n play" and you can just sit at home and earn BTC, there will always be issues that you need to attend to, the more miners you have the more likely you face issues, so are the Chinese going to send workers over to some other country? how about the Visa and all the legal documents? does Iran or Khazatitan or whatever potential country have enough people who know to maintain large mining farms? are they trustworthy? if not - back to square zero.

Mining in China was like heaven on earth, the Chinese will never find a better place, they had access to cheap gear, almost zero transportation cost, you just reverse the truck in one of the warehouses in Shenzen, load it up and drive for a few minutes or hours to your farm, as easy as it gets, how does that compare to transporting it to the port, getting all the customs clearing shit done in China, paying a large amount of money for shipping and insurance, going through the same custom clearing, import duties shit and then sending the gears to the farm!

In China, you could hire 50-100 experienced people to set up the farm in no time at a very low cost, elsewhere, you will pay a lot more to hire less experienced people to do that, or of course, you can send your own people from China which will come at another cost.

Another issue is the repair services, large miners in China were offered on-site repair services by Bitmain and other major mining gear manufacturers, your gear stops mining? call Bitmain and they will send someone to fix it at the site, what do you do when you have 1000 gears that need fixing in El Salvador?

All the above issues can be solved if enough money is thrown at them, but mining profitability is somehow tiny compared to the cost, every expense matters, all of these factors and more will slow down the reallocation of those gears.

There is custom firmware by the name "Luxor Tech" which I believe belongs to Luxor, so this makes 4 of them.

---

OP, I use AwesomeMiner and it's great, I have checked Mineitor and it looks as Awesome as AwesomeMiner.

Yes, it's just a tiny delay if

1- Your internet connection is fast in the first place
2- The VPN server is pretty close
3- The pool server is close to the VPN server you connect to
4- It's a paid VPN with a decent server

Of course, if you use a free service that is fully loaded with other users and is located on the other side of the globe then you are asking for trouble, but most VPN services now have servers all over the world, it's pretty easy to find a decent VPN server nearby.

This isn't a matter of what I or you think, anyone can try it and see the results to themselves.


It does matter, every share counts, and I rather get 0% stale shares, but if mine is 0.5% or 1% does that mean I should shut down my gears and move on with my life? it does seem like that is what you are suggesting, as a pool operator you have the code in place that takes care of this, if the work is submitted too late, you reject it, it's as simple as that.

Your concern is high latency, not the use of VPN, miner "A" could be mining to your pool with no VPN but with very high latency, on the other hand, miner "B" on a VPN may have very low latency to your pool compared to miner "A", to you, it does not matter, a share is either accepted or not, not sure what part of that you don't understand.


That makes two of us, I would be very pissed if I mined for almost a year and got zero rewards while wasting power bills and burning a few hash boards along the way.

Probably a combination of both, but "there's more to this than meets the eye", I spoke to one Chinese miner the other day, one of the biggest obstacles they seem to be having is "regulations", the Chinese have the money and the manpower but they don't like to operate outside of their region especially when they are not backed by the government.

Just imagine you own 20k gears in your hometown and you now have to take them elsewhere, think of how difficult it's going to be to manage it, you will need a ton of money, someone in a different country you can trust, a country where you can mine without having to worry about being forced to move out right after you set up everything, and of course, the power cost, it's a ton of work, to be honest.

It's easy to google countries with cheap power rates but moving there is not, even the so-called crypto-mining-friendly countries will not be as friendly when thousands of gears move there, more regulations will hit every country that has a large share of mining, mining will be a lot more difficult next year than it's now, the Chinese know that and they are being very skeptical, so when I see someone say "oh it's only 3GW worth of power, any small country can host those gears - it will happen next month", I can't help but laugh.

Some of them have already found a new home and it's only a matter of time before they go past space and power issues, but most gears are still in China, it will take a long time for these gears to settle somewhere else, and many old gears will simply not come back online.

That's true, but if 10ms gets you 0.001% stale shares and 100ms gets you 0.01% it's still within a good range of acceptance, the difference won't be even noticeable in the earnings.

The point here is that using VPN is not necessarily going to take you from 50ms to 300ms, depending on so many factors as mentioned above the added latency could be too small to be considered, in one of the small farms I have a very poor connection because the farm is located a bit far from the city, I use Ubiquiti p2p bridge to provide internet connectivity, the source itself is rather slow and have high latency because I can only use one shitty ISP, and despite all this mess, my accepted hashrate on the pool is well above 99% most of the time.

In other words, I have more latency than most other people even those who use VPN, so if someone has a fast and solid connection to a good VPN server they will probably do better than me.

If your miner can't do well at 34 degrees then something is wrong with your cooling method, also, the stock firmware handles the temps just fine to a certain degree, while it does not put the miner into sleep mode it simply reboots it, so despite not being the perfect solution one would hope for - it at least ensures that the miner won't catch fire.

Your post was not deleted, it was moved to the altcoin mining section where it belongs since that question was related to antminer L3 which is not a bitcoin mining gear, this topic is still there because it seems like you are asking a different question regarding a bitcoin miner. if you mention anything about altcoins this post will likely be moved as well.

Since he most likely not going to be solo mining with his own node, this is rather not important at all, the pool has that covered, if shares are submitted in time, they are accepted.

The reason why I said he needs to try on his own is the fact it all boils down to how fast the connection between his router and the VPN server is, and between the VPN server and the pool server, if the total time it takes for the packet to make a two-way trip is within a reasonable time window, then most of his shares would be accepted, I remember -CK mentioned <200ms is okay (can't find the post tho).

The problem here is that most people would use the ICMP protocol (ping) which is available in their OS and they will ping pool website, which will give you false results that could be far from accurate, what you need to use something like the Stratum-Ping tool which is available for free on Github, that will give you a lot more accurate results.

But the easiest way would be to try a few pools, I am positive that you can get lucky enough and find pools that are easily reachable by the VPN server you use and you end up mining with no issue, it will just take a few tests and some time but it's doable.




your data does not "bounce around the globe" when using a VPN, it just adds one more destination + the encryption time, if you use a proper VPN server that isn't fully loaded by other users, and the distance between you and that server isn't too far, you will barely notice the added latency and so won't the mining pool.



If mining is illegal in your country, you should not be doing it, using a VPN doesn't magically give you protection against the rules.

I have mentioned many times that we are unlikely to double the difficulty anytime soon and since last year my protection has been that difficulty will go up slowly unlike the common thought, but have I ever thought about going back to 14T? not even in my wildest dreams, if anyone told me this was going to happen a few months back I would have thought they were full of it.

Maybe if you stop reading out of context things will make sense to you, everyone knows that VPN will slow down your connection (except for very rare cases when your ISP might be throttling a certain type of connection and VPN will actually be faster).

With that in mind, the use of VPN does not necessarily increase stale shares because even after the longer router those packets need to take, the total delay/latency could still be within a reasonable range and thus it might not affect your earnings.

You will need to use a router that has VPN functionality, there are many models out there, it all depends on your budget just make sure you DYOR before buying any, also as mentioned above using VPN will in most cases cause an increase in latency, whether that will bad enough to actually increase your stale shares or not is not something one can confirm without actually testing, it will depend on so many factors that are difficult to predict.

I am not aware of any "trusted" custom firmware made for the T15, those gears are unicorns and I suppose no dev would waste their time on it, so whatever you find is probably a hack of the stock firmware or a waste of time.



What does that mean? what are you trying to achieve?

I agree, it does seem like it has been poorly explained judging by the number of people who talked about it in the last adjustment, since this is a new event to most people including myself the >25% drop was very famous, I saw many folks talk about how were are going to pass the maximum change allowed, which does prove your point that most articles falsely (and hopefully not intentionally) explain it as a max drop as if it's 25%, I think it would be a lot better if they get rid of the 25% or 1/4 wording and just stick to 75% and %300 because

1- most people prefer to work with multiplication than division
2- most people care about the drop rather than the difficulty/target figure itself.

I suppose the fellow miners would prefer to hear they are getting say 50% more rewards than say the difficulty is going to drop to 7T, the latter is somehow very difficult to reflect on your mining earnings.

لا اعتقد ان بوت 3 كوما يقوم بهدا الشي بل هوا بوت للتداول,  اما بخصوص وجود بوتات تقوم بتحويل الاموال من عنوان لاخر فهده موجودة بكل تأكيد, ولكن ماهو الغرض الذي تحتاجه لها؟ من وجهة نظري في حال انك احتجت لاستخدام مثل هده الخاصية يجب عليك ان تمتلك كود البوت بنفسك وتضعه في سيرفر تمكله انت ولا فأنك ستعرض اموالك للسرقة بكل سهولة.

Could you provide more details? how did they die, is it a PSU or dead hash boards? how long did they run for? I know you had great luck with the S17 pro which is against the odds, judging by large sample reviews it's pretty obvious the M21s and the M20 is a lot more robust than all the 17 series of bitmain including the Pro version, this also reflects in the price of these gears, despite being a lot more effienct and newer, the S17 Pro is always either the same price or cheaper than MicroBT gears which also leads to the same conclusion.

With that being said, the reviews between M20s vs M21s are not so clear, but judging the price it seems like the M21 is a lot more reliable.

M20s = $33 per TH
M21s = $34 per TH

keep in mind the M20 is 46w/th vs 60w/th for the M21s, which means the M20s is a lot cheaper than the M21s, this suggests that at least in theory the M20 is more reliable, on a side note, they both use the same PSU.

That's a good point, we all know there are a few people around here who can't stand the sight of comments talking about anything else that is not bitcoin even if it directly affects bitcoin, I am all about bitcoin and I don't like most of those other coins but if it's going to affect BTC in one way or the other, it's always worth mentioning.

The L7 will keep many folks away from mining BTC, which will help in keeping the difficulty low for us, do I care what happens to LTC? hell NO!, is that good for BTC miners? hell ya.



As long as our gears are making coins, who cares about us?