S9s will start under 45f every time.

I am betting you are using the APW3 Bitmain power supply. When it is too cold it will not turn on, you will see the fan spinning but there will be no 12v output.

Ive turned s9s on that were as cold as 20f with no issues, there is no protection circuitry in them for such a thing.

If you ever have plans to expand beyond that I would be very interested. You are only a few hours away from me but unfortunately right now im sitting on 250kw worth of miners that need a home so it wouldn't work out unless you expand.

I have also helped with the design/build/layout of multiple datacenters and have managed a total of 5 crypto based datacenters if you ever need consulting.

I just cant seem to wrap my head around why people care what the default pool settings are? Who is buying these and not immediately changing it?


Oh wait...its a Dragonmint so it only works with those 2 anyway. Makes the defaults seem that much more trivial. Its not like you have much of a choice where to point these things.

Yet another person talking out their ass about Bitmain when they have no proof of anything. Bitmain makes BILLIONS selling hardware, developing some secret custom hardware just to mine some shitty altcoins is so beyong a waste of time for them I cant believe you would even mention it.

The problem is because of those piece of crap Vega cards. They dont play well with anything else and they mine everything but XMR like shit. You should sell those as quick as possible and buy some better cards.

So it seems the efficiency is just barely on par with Bitmains 2 year old s9 tech. After all that bragging about it being the most efficient miner in the world, Halong is looking even more silly now.

This is the wrong section to ask about GPU related stuff, try below in the altcoin section.


Also, you will need to work with crypto and turn it into fiat yourself. You can rent your rig to nicehash or miningrigrentals but they will still pay out in crypto.

Bump for great justice!

Its amazing how little people understand the mining game.

Comparing daily profits between ETH and XMR is 100% meaningless unless you are converting your mining rewards on the fly.

If you are converting your mining profits on the fly you are an idiot. You dont make your money at the time you mine the coin, you make it when you sell it after the price has gone up.

It sounds like most of you should sell off your rigs before you cost yourselves any more profit.

You know...sometimes they just catch fire. It was a well known problem on 54 chip s7s.

SO SEVEN 4" tubes all being pushed through a single 6" opening? The problem should be obvious, you dont have nearly enough flow to remove the heat. You are creating backpressure and the miners cannot exhaust properly, hence the miners overheating.

Heat the heatsink with a heat gun, and use some kind of foreceps to grab and roll the heatsink off of the chip with a slight rocking motion. Always make sure to take the smaller bottom heatsink off first.

Then you can use a razor to scrape the epoxy off.


^^^Thats how I was taught by Bitmain at one of their training sessions.

Calling bitmain a terrorist organization demeans anyone who has ever been the victim of real terrorism. You should be ashamed of yourself.

You even lump in the coinbase controversy and try to blame bitmain for it? This has to be the dumbest shit I have read on this site in a long time, and that is impressive because there are a lot of uneducated people spouting random conspiracy theories every day around here.


NEWS FLASH - BITMAIN IS A HARDWARE COMPANY THAT CONTINUES TO MAKE HARDWARE.

Of course they are making ASICs whenever they can, that is their business model.

Of course they mine on them before releasing them to the public. Whenever you create a new product you need to test it. You test a miner by MINING WITH IT.

ASICs are a natural progression of this space. This is not new, nor is it a surprise.



You butthurt people and your victim mentality try to blame bitmain for everything under the sun. Everyone thinks crypto is supposed to be a get rich quick scheme because of last years unsustainable rise. Now that the market has corrected everyone is looking for someone to blame rather than own up to their own ignorance when it comes to the economics of this space.

You do your research on a variety of coins and pick one to mine that you think has a bright future. If you are using profit calculators to chase minute by minute profits you will end up losing out badly in the long run.

Chasing profitability day to day like that is how you determine if someone is experienced/educated in this space. People that chase daily profits just have no clue about how to do this long term.

The R4 was a failed experiment and further proves there is not a strong enough market for home miners to keep them in production.

To make a decent profit in the space now you need to run more miners than a normal home electrical system is setup to handle. The only reason to run an R4 is so you can pat yourself on the back and brag to your friends you mine bitcoin.

I mean an r4 makes like what $50 a month at residential power prices?

ASICs do not cause centralization in todays market. As a matter of fact, the bitmain ETH machines price point and performance mean that more regular people can get into mining without having to build a $3000 GPU rig with a 2 year payback period.

Thats what we have been fighting with for the last 2 weeks since they dropped the bomb on us. There is no logic to what they are claiming the reclassification is and we cannot get anyone to give us a true solid answer on it. Ill update as I find more information out.

US Customs has decided to reclassify bitcoin hardware. They recently sent me a six figure retroactive bill saying the good had been mis-classified under the old Automated Data Processing number.

I wouldnt be surprised if you are just being hit with the new duty schedule. They actually told us the new classification is similar to what vaping products are classified as, its pretty ridiculous.

I built my entire datacenter off of secondary market PDUs because its just not feasable at their MSRP.

I use 3 phase power so my setup will be different from single phase as far as breakers and layout is concerned.

That is 100% normal. It protects the components from each other and various shocks like dropping the PSU. Its a good thing. If you need more clarification just google "white goop in PSU" You will find thousands of people asking the same question.