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What's the most common issue you encounter when using Antminer？ ???

No issue unless you got a faulty device.
Although I hate them noise, too noise for a home if you have more than one.
The amount of power they draw is very high too and as a solar energy miner I am trying to avoid Asic miners as possible.

I hope that in the near future we will see a lot of home miners that have higher TH power, maybe over 100TH and also more efficient to run.

If you are new to the miners you can face small issues like inconsistency and instability but trust me that's because you are new to mining, normally you need to place the miner in a well ventilated area for better cooling or you will face these issues.

Make sure the fan spins and also make sure the psu isn't overheating.

heat and noise on the s21 and s19 models

they pull 3300 watts and are loud.

those two things will be certain enough.


next is break down of gear.

break down of gear is at least 10% per year.

if you have a lot of them there is almost always one or two that suck.

One of the most common failures of ASICs is overheating of chips and their failure. Usually, the further the chip is from the front fan for blowing, the higher the temperature. And ASIC power supplies do not like voltage drops in the power grid.

It seems so. Noise and heat dissipation problems should be the most troublesome. Then why don’t you install a blower muffler? It can solve the noise problem and dissipate heat effectively at the same time. You can go and find out.

nope.

 it is more likely down clock a bit. they will not over heat as much and are quieter.

the pot fan setups do help but most of the gear runs way too hard. which makes it to hot and too loud.

Also the pot fan means you need to bypass oem  fans.

So if the pot fans break there is a huge chance you over heat the gear.

If you go the pot fan route you should use an epic controller and set the overheat numbers very low 78 vs 85c

if the pot fans break the gear may be saved due to the lower heat setting.

here is a 1 board t21 so 1/3 the power and hash means it does about 55th

but I super under clocked it to 18 th .

no overheating no noise and it will last for years run this way

https://www.talkimg.com/images/2025/08/16/USiOZf.png

Personally, I have never used an Antminer for Bitcoin mining, but I have ever mined using a GPU installed on my personal computer or desktop. The most common headaches I encountered were power outages and unstable internet connection issues, or even frequent disconnections. I encountered these issues frequently at the time, and even if I were still mining now, I think I would still experience both of these issues. I don't know if the same issues apply abroad, but this is a common occurrence in my country, even though my internet and electricity providers are state-owned enterprises, but it doesn't seem to be as good as it should be.This might not be specific to your question, but I think it would be relevant if I were using an Antminer for Bitcoin mining here.

In addition, rainy weather accompanied by lightning is also a challenge for me when mining, because when that happens, I have to turn off the modem that I have, because several times I have experienced incidents of being struck by lightning on my modem, which at that time made me anxious.

The power 、network is an external problem, and the internal problem is the accessories.

Temperatures can be a real headache. They vary widely from place to place, sometimes hot, sometimes cold. But is too cold always better than too hot? High temperatures can be solved with a heat sink, but what about low temperatures?

Do you cool the equipment with nitrogen? :)
On the working equipment you will not have negative temperatures with air cooling. If the chip is dead, it will no longer heat up.

Do you mean the miner is running in an unheated room that is 30f or 0c

Most miners do not like temps like 30f or 0c

But that is not the miner that is the super cold room they are in.

Much like running a miner in a 45c plus room or a 113f room

Those are simply poor places to run a miner


https://shop.bitmain.com/product/detail?pid=000202504181244499833ha86cWe068B


This claims -20c to 45c. And it will run.

-20c is 7f.    I CAN TELL YOU IT won't do well in a room that cold

45c is 113f.  I can tell you it may work in this temp if that is the hot point for the day.


Don't run  Gear in extreme rooms.

A 35f or 2c room is good

A 90f or 33c room is good.


 Chip temps at 70c for all s19 or s21 models are good.

I have a question: Is there any economical and affordable way to solve the problem of overheating of the mining machine?🤭🤭🤭

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Even with ventilation, the temperature will still rise if it is running continuously. This is similar to playing with your mobile phone in an air-conditioned room; the temperature will still increase after a long period of use.

Are you saying that if you spend a long time with your phone in an air-conditioned room, its temperature will rise?
Ventilation is needed to cool the ASICs with cold air from outside, which is why the temperature of the ASIC chips should remain virtually constant during operation.

No, we don't use nitrogen to cool the system. We use water cooling plates. Not sure which works better.

if you can make a high quality custom water block with a quality radiator and a quality pump it is a good idea.

if you take a three slot s19 miner and pull 2 hash boards out then place two custom waterblocks on the single hash board. The hash board will stay cool assuming the pump is good enough to pull the water into a big enough radiator.

but doing all that is simply not cheap.

so usually compromises are done the waterblocks tend to be a bit smaller then they should be the waterpump is a bit lower quality then it should be the radiator is a bit under sized. and the chips get pushed hard.

or just air cool pul the center board out put a spacer in the center.  <>. look at that  shape to the left it will direct air to help cool the outer two boards.

it ends up that two machines turn into three.

so you buy
 a shell
 a controller
 a psu.

about two hundred maybe three hundred bucks.

is it cheaper then your way cant tell you .

if you have 100 miners it is too much space.

if you have two miners it is worth fucking around with.

The s21 XP model is better though and more effective and efficient but as you stated earlier on it's power consumption, the XP consumes 3645 W of power which is massive as well. It has 270 Terahashes per second. Since it's flaw is the high rate of electricity that it consumes, it's suitable in countries where energy cost are lower and I believe if people from these kind of countries has this improved models, they will mine more than when using the older model of just s21.

Of course, water cooling will be better than standard air cooling, but there are some problems in increasing the cost and the need for engineers. Usually, water cooling is combined with something, such as heating, pool heating, etc., otherwise it will take longer to pay off.

Everyone has different preferences. Due to differences in regional climate and other factors, you can select the model that best suits your needs.

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In fact, the local environment and climate are not bad, and the electricity bill is not high. Air cooling or water cooling can be used. It also depends on local conditions. You can choose the one that suits you according to the situation. It can only be said that directly choosing water cooling is not so troublesome.

I have already written about my colleagues' experience with water cooling from Bitmain. They had enough problems and a very long time to buy the necessary spare parts, which are expensive, and so they began to make this system from materials that can be bought at any store for plumbers. This is more expensive, you need to have additional workers on staff - plumbing engineers.

But isn't the purpose of buying a mining rig to mine? Once mining begins, the rig will run at high speeds for extended periods. Won't this lead to heat dissipation issues? Some mining rigs, especially those with air cooling, are particularly noisy, so purchasing the right accessories is crucial. It's unlikely that a mining rig itself can resolve the issues of high temperatures and noise from prolonged operation; accessories are essential.

Yes, that's the case with my iPhone. If I'm constantly playing games on it, it'll heat up even in an air-conditioned room.

The premise for proper ventilation is that the ambient temperature shouldn't be too high. If the temperature is too high, even without cooling accessories, it's useless.

A very important point: Smartphones are not designed for constant gaming and the iPhone will overheat.
ASICs are designed to work 24/7/365 with proper maintenance, so it is not entirely correct to compare a phone with an ASIC.If you make ventilation in the desert, where the temperature reaches 50-60 degrees, then there will be problems with ventilation :)

My biggest headache is what if I buy an Antminer and it has a defect? That's why I've always been picking GPU over ASIC miners because I know that when I buy from Nvidia or AMD, it's gonna be a high-quality product, while I don't have the same sense for Bitmain. The problem is that if the miner that I bought from China has a defect and I have to return it back, I'll have to pay hundreds of dollars for shipping from my country to China, which isn't worth it for me. Buying from a local market is a bad idea because they sell antminers at double the price.