Topic: Bitmain's Released Antminer S9, World's First 16nm Miner Ready to Order - page 107. (Read 531168 times)

The BitMain PSU's are fine but are happier at higher voltages (220-240v is good). If you have a few of them you'll experience a higher MTBF rate than with something like an EVGA 1600, and as far as warranty service is concerned they are hardly worth the time and expense to send back to be fixed, so while the price is cheap, you should price in keeping a spare or two around. Based on the APW3's we've used my feeling is that they are designed for a service life of probably around 12 months.

Miners seem to like to mine at a sweet spot ambient temperature of around 65-75F. We have the fewest problems in this range. Below that static electricity can be a real issue. An S9 will mine happily up to around 90F, but to prolong service life I recommend 70F. During hot weather periods we start to have issue with machines once ambient gets to around 95F and above. Disconnects, wonky controller issues, lost hash boards, etc. It used to be at lower temps you could mess around with overclocking a bit, but with the autotune miners lower temperatures don't really influence efficiency gains beyond that there should be less down time across the board. We don't notice any difference in frequency set between 70 and 90 degrees F. The yield for each miner will vary anyway, sometimes widely. We have 13.5 autotune S9's from the same batch right next to each other on the rack were one will average 12.9 and another will average 13.8 and another 14.2 at the same ambient temperature and humidity conditions. The best way to increase efficiency (by a percent or two) is with Titanium rated PSU's running at 208-240v.

For 220v is it just best to go with the bitmain PSU?

What is a good ambient temp to aim for? Is there efficiency gains below a certain point?

Sorry for the noob questions.

Lol. This one.

Selling financial problems due to New Bitmain Antminer S9 miner 13.5Th.    Price: 0,17 BTC or 1100$ To inquire privately

Send a message to support with your BCH transaction information which shows you sent and they received the BCH to the designated account.

Same happened with me and support responded within a day, gave me a discount and updated my transaction to paid.

Made the BCH payment to Bitmain five days ago but my order page is saying there`s an order due amount in red. Is this normal or is there something else I need to do? This is for January batch.

Gotta pump those numbers up man, join the PH club

Thx

Mine have.

Anyone that have S9 batch 20-30 Nov order shipped?

Thanks Fuzzy!
I must admit I didn't see it at first. I personally didn't care about BCH or see it as a threat at first. I figured, meh... If that's how they wanna waste their time, then whatever. Another alt crap coin, oh well.
So when they put their miners up for sale with a BCH only payment option. I thought...hmmm... Hey something do with all that useless BCH I have from the fork. It's like christmas, getting a bunch of free miners. Damn, I must be the luckiest guy on the earth. I wonder why they fixed the exchange rate at $500 per BCH when it's only trading around $300. Sweet, I must have caught it at just the right time. I am the luckiest guy on earth. They can have their useless alt crap coin, I'll take some free miners please.

I just wish that Avalon could have gotten the new miner out sooner.

Very good summation of the shenanigans behind BitCH coin.
To test out Canaan's Avalons I had already gotten 3x A721's then 3x of the 741's and 1 last pre-BCH-only s9. Very happy with the Avalons so when Bitmain went to saying ya gotta pay with *their* altcoin that just sealed the deal of me saying good-bye to using them.

It really is a shame Bitmain pulled this stunt. Starting with s1's back in April 2014, to-date I have bought 105 Ants from them of all flavors aside from the s5+ and their U series, faithfully upgrading the entire farm and expanding it with each new release. Now, as long as they insist on accepting only BCH screw that.

Their competitors are more than happy to take either BTC or other means of payment plus they have decent gear so win-win for us and Bitmain's competitors I guess...

Farm currently @ >250THs and 45THs of that is Avalons which include several more purchased after Bitmain gave us the  Ja, over 205THs of that is s9's and T9's however I like the Avalon's so much that I will get a several more to replace some s9's which will be taken off-line to hold as spares (at my power limits).

Already recently had my 3rd s9 hash board die within the last 2 months - all from different pre-autotune miners - so took the 2 good boards from latest failure and put in the other 2 miners. They are pleased as punch being back to full 13-14THs but I also now have an empty s9 chassis....

Then again - so happens 2x more A741's arrived last Friday sooo overall farm is a few THs faster than ever

I doubt they will do that. They are creating demand for their coin. It's really the only place you can use it.

It goes like this. There is buzz that an Avalon 8 is coming out with efficiencies that could rival the S9, but maybe early next year.

The BTC price skyrockets, "someone" turns on about 2 Exahash worth of gear and drives the difficulty through the roof and creates a "gotta buy more miners" mentality. So Bitmain lists a batch of miners, but only offer BCH for payment. By the time you figure it out, too late. They sold out in 1 hour. You missed out this batch. Wait until the next one, coz now you are stuck with BCH. BCH price drops 50%, so you gotta get more to buy the same miner. If you're prepared, you buy enough to cover the short fall. If not, too bad try again next week. 1 week later, new batch comes out. Pay with your BCH.

Now for the next batch, you get prepared and buy BCH ahead of time. They are happy to sell BCH back to you for BTC. Thus creating demand. In the meantime everybody that wants a miner is buying BCH and driving the price up. We don't care as much about the exchange rate, just that the price we pay lasts long enough to be able to acquire our shiny new miner. So boom, we get the advance twitter notice and run to buy BCH so we can get more miners.

Lather, rinse, repeat...

The end result is that we helped drive up the price so that now, BCH now looks like a viable alternative. The profitability calculators kick in and tell us that we can make twice as much mining BCH as BTC. 70% of BTC hashrate switches over to BCH. It exposes BTC's "weaknesses"  and BTC becomes unusable coz the mempool backs up and the only way to get a transaction through is pay huge transaction fees. Of course, eventually our hashrate will stabilize and a new lower difficulty will kick in and the mempool will clear out. But the damage is done. The buzz for BCH has been created. How many BCH news stories did you read this morning from the "mainstream" media. I'd be willing to bet it was more than the last 3 months, since the Aug. 1 fork. The beauty for them, if it doesn't work then they try it again next week.

It's no coincidence that they have a new batch of s9's that has been available for 4 days when all previous batches sold out in hours.

So we did it to ourselves by continuing to buy Bitmain and not buying avalon or ebit miners.

Yeah.

ok, I give up now buying from Bitmain, placed 4 orders everytime I click Submit got a message, Connection refused.

Waste of time.

How many S9 are on this batch?? S9 is still available now...

What's the best way to shut these down? just unplug them?

And more payment options will also be available as Bch pump and dump will be over

S9s became very profitable again. Watch Bitmain will raise the price for the next batch.

bitmain site off line now...