AntMiner S5+ Batch 1 × 1
2375 USD ( 8.973 BTC )
Speed: 7.722TH/S
ANTMINER S7 BATCH 1
Speed: 4.86TH/S
Weight: 4 kg
Price: 1823 USD ( 7.984 BTC )
.989btc difference for 2.862TH/S seems a big premium for efficiency
0.61 BTC/THS more for that premium. Pretty steep indeed. I've decided I'm gonna have to wait for reviews and hope the price is adjusted lower. At the current price, there will be a few hundred people buying these fast in the first few days. My gut tells me that sales will most likely drop off dramatically to a trickle. They will have to lower the price to get the sales moving again. YOU WOULD BE correct if they did not mine. They have a self interest in limiting hash power. As does any of the top mining companies do. My guess is they shut these sales down quickly and assess what knc,, bitfury, 21inc, btcChinapool do to expand. You have to understand if they sell 50ph of these they mine against them and bitfury knc ,miner ,21inc ,btcChinapool all expand.,, My guess is they sell 1000 units top or 4-5ph to us smaller miners they could do to us what they did with the S5's and if no new market competition is released not sell any more for many months so getting the batch 1 may give you a long window of opportunity to mine with them before there is a batch 2 or 3 to public so far looks like nothing new substantial to market to compete with them I am making that play fingers crossed. My second reason is they arrive to my home about 8-10 days before my summer power rates drop to my winter rates. I can mine from oct 1 to june 1 in house if I choose to at 10 cents vs 18 cents. as a 10 cents miner when I buy big I have to buy cutting edge gear. so we are among the 100-200 most risk takers in the mining field in the whole darned world (or the most reckless ones). count 100-150 more and we'll have a 300 club ( This is... Spartaaaa.....with the image of S7) |
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the login page is fixed now-I ordered one.
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Well it looks like home mining is finally dead from Bitmain, with such a high entry price and the noise from this unit it would be unreal. Hopefully they make an S7 mini that hashes around half the speed in the old form factor for 600w and half the price.
Yeah, if they had both models (regular and mini) it seems like they would move a ton of chips. Data center scale farms would be happy. Home miners would be happy. It's a missed opportunity, but maybe not too late. they will do it if S7 (maxi) would not sell very well. I see a potential mistake here: enthusiasts don't mind some premium, but care about overall unit price. large farmers don't care about higher th/unit, but care about reliability, which might be a risk at high density. people were discussing 600W, 2.4 th-that looked optimal and this one might not be, but I'll wait to pass the judgement on a potential mistake until we learn about noise, heat, etc. |
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He's referring to the login page, though; https://passport.bitmain.com/login?service=https%3A%2F%2Fwww.bitmaintech.com%2Fuser%2Faccount.htm That does seem a bit screwy - main.css only loads intermittently. yeah that one does not look right |
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Is bitmain login page under some kind of attack?
login page now looks distorted and i get browser security warning that someone is trying to steal my id and password-anybody got the same?
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I find this conclusion to sound accurate and actually quite funny. You will never get your bitcoin back if you buy one of these at this price. It isn't even close. This is for suckers or those with stolen electricity.
not true since: 1. you don't know what bitcoin price would be. 2. you don't know what bitmain's price would be going forward. 3. you don't know what aftermarket price would be in early October or November the combination of these three parameters makes it much less certain than you think. BTW, people were buying S5+ |
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it has 6 jacks 4 cables have a single plug and 2 cables have 2x plugs so you get 8 to plug into the s-7 it can just do the job. but it has less cables then bitmaintech wants you to use. They are afraid of people using cheap PSU's/cords and make sure to warn 3 all over. I suspect they pack a paper with each S7 warning of all the different things and an email. If you know what your doing and quality PSU 2 should be able to do it.... but if any issues if you tell bitmain you used 2 chances are they pull warranty. I'm not saying to do it but I have a feeling some will use two and just not mention that to bitmain if they need RMA. Sidehack also had a good idea. If you use a proper splitter (not a cheap to small of wire one) bitmain did not say no on that... but they could consider it improper powering as it's vague. So someone might ask on proper guage splitters what bitmains official stance is. I used good splitters on evga single cords (NOT those that are already split!) on S3 and it was working like a charm. S7-we will know in a month or so. |
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I'll go for late Sunday, Aug 30 in US (which is Monday, Aug 31 in China).
Bitmain says it will be on sale Sep 30 9pm (UTC+8) At noon US central UTC is 5pm, so UTC+8=11pm US central or 9pm pacific. They say 9pm, which makes sense. Can anybody confirm? 0.1 btc sent to you please send btc address for 0.1 btc award. i pronoumced you the winner of the Sexy S7 Saint thanks, it was very entertaining please send to 1MeudTtbCbvyp1svX2BZi3SeZ1gPAuJUay I just sent to you 0.1 btc cor thanks, pal interesting raffle |
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Yes. It could be very loud.
please elaborate  imho, you don't need to be rocket scientist to imagine, how noisy it will be. based on description in OP, it is using 12038 fan, well let's google: http://www.fantech-electron.com/enu/product/view/dc-fan-12038.htmso, based on web, it will be at least 40dB per fan and there will be 2 of them + fans from PSU (you will need one very big, or 2 just big) + noise from airflow (because miner itself is some tube, one side will suck the air and second one will blow it) let's assume, that they will use the most powerful 12V fan with 2900rpm. let's calculate: https://www.noisemeters.com/apps/db-calculator.asp2x 51.3dB for fans 2x 30dB for PSU so ~55dB. 55dB is NOTHING if true. S5 was 70-72dB BTW, you are a little off with 2900rpm, I think S7 comes with 4200rpm fans |
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i think it's perfect! 2*6pin/blade, 1*controller and 1*6pin free that u can shove in one of the blades it's complicated...it might, but not 100% before someone tests it PLUS you would need to use PCIe splitters (not included) on at least two out of four singles.
The geometry will be discussed here endlessly in the next month.
he can use 2 of 6pin per blade. this are 16awg! it can power 250w/6pin easy! 1300 watts seems a bit light to me when you consdier that many say you should calculate at 90% wattage availability. So 1300* .90 = 1170 watts. Also, the advantage of using 3 smaller PSUs is you can use three different circuits as many of us don't have the capacity to run a large PSU on one circuit. evga 1300 has no problem running 2 S5, which is basically the same as one S7 as far as wattage is concerned. |
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i think it's perfect! 2*6pin/blade, 1*controller and 1*6pin free that u can shove in one of the blades it's complicated...it might, but not 100% before someone tests it PLUS you would need to use PCIe splitters (not included) on at least two out of four singles.
The geometry will be discussed here endlessly in the next month.
he can use 2 of 6pin per blade. this are 16awg! it can power 250w/6pin easy! that's the gist of the matter...people will see: three connectors required and will hesitate to use just two (and maybe rightfully so), however using splitters on a SINGLE evga red cord(s) and then engaging all three connectors on each blade is a compromise. Splitters are like $5-7 (just NEVER use the cheap 20 awg ones) |
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it's complicated...it might, but not 100% before someone tests it PLUS you would need to use PCIe splitters (not included) on at least two out of four singles. The geometry will be discussed here endlessly in the next month. |
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Anybody of S5+ buyers who will not use a S7 coupon or have extra-pm me if you can spare (for a price, if needed).
thanks
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so consesus is 3 PSUs at least 500W would suffice?
500W PSUs almost never have 3 PCIe connectors and bitmain also asks for a separate PSU for controller IF multiple PSUs are used (you supposed to first turn on hashing boards PSUs, then controller PSU). You could just plug the controller to the last PSU you turn on. Powering the last blade + controller at the same time will not cause any issues. you are probably right, but here is what they said verbatim: "If you use different PSU for hash boards and control board, please make sure to power the hash boards first and the control board only after the hash boards have been powered." In any case Corsair 500 has only one already split PCie cord. Will it work? |
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so consesus is 3 PSUs at least 500W would suffice?
500W PSUs almost never have 3 PCIe connectors and bitmain also asks for a separate PSU for controller IF multiple PSUs are used (you supposed to first turn on hashing boards PSUs, then controller PSU). |
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yeah it is about 250 days to roi at 10 cents a kwatt. make it a bit worse due to diff increases and say 300 days. so if you have 10 cent power breakeven on July 1 2016 just as we halve |
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Bought 4, so excited!  you're welcome, mr money bags  |
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I have same problem on two separate orders placed earlier today. Both are confirmed on blockchain yet order is expired on bitmaintech. don't worry about it, they will reconcile tomorrow (at least that's what they did before). if not, then send the transaction ID to info@ |
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And the buy button just went live, despite the large expense, I wonder how long until they sell out of batch #1?
Good luck to everyone buying these ! Looks like some great gear, but this time around, instead of buying a fancy new miner, I did the following and will HODL.  Lets see which will be the better investment 9 months down the road. Would you be able to hold on with people reporting on this "screaming" sexy gear? By just calculating the odds, I am with you, but my 'animal brain' tells me-get some. After all, I can play with it, then send it on its way to hosting or sell. |
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Anybody have a coupon that they don't need?
I probably would order with coupon, but without it is a tough call.
PM me, please.
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