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Topic: ANTMINER S7 is available at bitmaintech.com with 4.86TH/s, 0.25J/GH - page 399. (Read 528055 times)

sr. member
Activity: 266
Merit: 250
Infected Mushroom
This stuff at 2BTC/TH, without power supply, is insanity

uhh, I think that everybody in this thread is aware, that mining is more or less hobby for hardcore geeks and nobody is expecting any portion of profit. those buyers will hardly celebrate, if they will even achieve ROI.

if somebody is not aware about this fact and buying this magic noisy heat box for dreamed profit as money printer, he should it reconsider from scratch and visit other sections of this board.

let's hope, that nobody is here so dumb here..

I am pretty sure anybody buying the second round of products are obviously aware of this situation, well, if not, I am surprised they can actually buy bitcoin from an exchange. Tongue

Never the less, I want to get my hands on of these so I'll buy one later on, when I see full reviews and make sure what PSU to use.
legendary
Activity: 1036
Merit: 1001
/dev/null
This stuff at 2BTC/TH, without power supply, is insanity

uhh, I think that everybody in this thread is aware, that mining is more or less hobby for hardcore geeks and nobody is expecting any portion of profit. those buyers will hardly celebrate, if they will even achieve ROI.

if somebody is not aware about this fact and buying this magic noisy heat box for dreamed profit as money printer, he should it reconsider from scratch and visit other sections of this board.

let's hope, that nobody is here so dumb here..
hero member
Activity: 742
Merit: 500
I bought 0.5w/GH hardware for 1BTC/TH over 6 months ago - its basically paid for itself and still holds the same value on the resale market. This stuff at 2BTC/TH, without power supply, is insanity

add the risk of miner failure! and that is over a longer time!

miner broken and you got fucked like a royalty!
full member
Activity: 224
Merit: 100
I can sell 1 coupon for .3 btc. price negotiable pm me!
hero member
Activity: 786
Merit: 1000
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.

This seems like the smart thing to do at the end of the day!  As flashy as this hardware is, it's not looking like it is worth the inevitable risks with difficulty rises, and larger scale farm deployment.  I will sit this out too, and just purchase coin and HODL.  Best of luck to buyers!

I bought 0.5w/GH hardware for 1BTC/TH over 6 months ago - its basically paid for itself and still holds the same value on the resale market. This stuff at 2BTC/TH, without power supply, is insanity

Yes- close to $2900 CDN once we Canadians pay for shipping and import taxes. Unless you are in Quebec or have free electricity with your apartment rental, you can never Break Even.
bitcoinware.net has them on his site for $2,999.95 including XpressPost shipping. His markup has been low in the past. The advantage to buying from him is you can get them faster from him when they're in stock.  
So, going by bitcoinware's pricing, my estimate for we Canucks to buy direct from Bitmain is not far off.

EDIT: I wonder why no Canuck has set up a huge farm near James bay in Quebec. It could likely easily compete with Swedish and Chinese farms. That far north, cooling would be way easier than for the Chinese farms and almost as good as the northern Swedish farms.
legendary
Activity: 3892
Merit: 4331

http://www.newegg.com/Product/Product.aspx?Item=9SIA24G28N5238

this could run the whole thing? would i need additonal cables or anything?

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.
full member
Activity: 161
Merit: 100
that's awesome,
i'm welling to buy 2x S7 now, Great job BITMAIN ..
hero member
Activity: 786
Merit: 1000

http://www.newegg.com/Product/Product.aspx?Item=9SIA24G28N5238

this could run the whole thing? would i need additonal cables or anything?

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.
hero member
Activity: 742
Merit: 500
legendary
Activity: 3892
Merit: 4331

http://www.newegg.com/Product/Product.aspx?Item=9SIA24G28N5238

this could run the whole thing? would i need additonal cables or anything?

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)
hero member
Activity: 786
Merit: 1000
I'd love to get a coupon to buy an S7. Bitmain username is: Alibell854.
hero member
Activity: 742
Merit: 500

http://www.newegg.com/Product/Product.aspx?Item=9SIA24G28N5238

this could run the whole thing? would i need additonal cables or anything?

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!
legendary
Activity: 3892
Merit: 4331

40a on 12v is perfect. the 2 * 6pins is worrying as 200w/6pin might be a bit too much...    this is evga so cables should be top notch...
might be ok for 1 blade, but for the blade an controller combo this is better http://www.newegg.com/Product/Product.aspx?Item=N82E16817438049

hint: research the 1300w type!
http://www.newegg.com/Product/Product.aspx?Item=9SIA24G28N5238

this could run the whole thing? would i need additonal cables or anything?

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.
legendary
Activity: 2128
Merit: 1005
ASIC Wannabe
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.

This seems like the smart thing to do at the end of the day!  As flashy as this hardware is, it's not looking like it is worth the inevitable risks with difficulty rises, and larger scale farm deployment.  I will sit this out too, and just purchase coin and HODL.  Best of luck to buyers!

I bought 0.5w/GH hardware for 1BTC/TH over 6 months ago - its basically paid for itself and still holds the same value on the resale market. This stuff at 2BTC/TH, without power supply, is insanity
hero member
Activity: 786
Merit: 1000

40a on 12v is perfect. the 2 * 6pins is worrying as 200w/6pin might be a bit too much...    this is evga so cables should be top notch...
might be ok for 1 blade, but for the blade an controller combo this is better http://www.newegg.com/Product/Product.aspx?Item=N82E16817438049

hint: research the 1300w type!

 I have 3 EVGA 600B I plan to use if i can ever afford to get an S7. EVGA cables are very good. You turn the CPU's calbes into a third 6 pin cable by getting one of these:

http://www.aerocooler.com/product_info.php?products_id=2140&uid=46a70fhni1ohbr3i2seqt94290

I use these on my existing 600Bs with no issues.
sr. member
Activity: 429
Merit: 250

40a on 12v is perfect. the 2 * 6pins is worrying as 200w/6pin might be a bit too much...    this is evga so cables should be top notch...
might be ok for 1 blade, but for the blade an controller combo this is better http://www.newegg.com/Product/Product.aspx?Item=N82E16817438049

hint: research the 1300w type!
http://www.newegg.com/Product/Product.aspx?Item=9SIA24G28N5238

this could run the whole thing? would i need additonal cables or anything?
hero member
Activity: 742
Merit: 500
30a on 12v is not enough!
35a i would call a minimum and still risky!

i prefer the 1300w model!
legendary
Activity: 1498
Merit: 1030
Quote

"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?

 You need to look more at the capsity of the 12V line than the raw wattage.
 The PS needs at LEAST 30A for the hash boards alone ON ONE RAIL, preferably 35A for any safety margin, and AT LEAST 3 PCI-E connectors, not "split" unless 16AWG wiring is used.
 Then add 5A if one PS is running both a hash board AND the controller board AND one more PCI-E connector (Fans will eat at least 4A alone).
 
 The design of the hash boards makes it appear you MIGHT be able to get away with 2 per hash board, but DEFINITELY NOT SPLIT PCI-E if so unless 16AWG or better is used.


 The S5 had that SAME warning about turn on order, just need to be sure the controller is on the last PS you turn on if you use multiple PS.

 With only 2 PCI-E connectors I doubt that Corsair will work at ALL.
 Probably a split-rail design with less than 30A on either rail.
 Additionally, I doubt the wiring is heavy enough.

Quote


 You want at least a Gold PS, not a Bronze. It's a noticeable efficiency loss that WILL cost you significant money.
 The 40A rail is good.
 The connectors look like a split pair, but I couldn't get the picture with the "better" view of the cabling to load. IF they are NOT split, it should work.

legendary
Activity: 4256
Merit: 8551
'The right to privacy matters'
My first one has been corrected to paid so I ordered my second.  Waiting for it to get noticed and mark paid.



https://blockchain.info/tx/fac7b1292485281268717188a2b558e0cba18ac5affbf036af890a8e4ac971e1

I paid 0.0002 as a fee but with all the buyers today it was marked medium vs high priority.


now here is progress   last year 4 s-5's  pulled 2400-2500 watts and did 4600gh

this year 2 s-7's will pull 2400-2500 watts and do 9700gh.

I have a spot for one of these s-7's at 2.4 cents per kwatt


I had 2 coupons donated to me so thank you each. 
hero member
Activity: 742
Merit: 500

40a on 12v is perfect. the 2 * 6pins is worrying as 200w/6pin might be a bit too much...    this is evga so cables should be top notch...
might be ok for 1 blade, but for the blade an controller combo this is better http://www.newegg.com/Product/Product.aspx?Item=N82E16817438049

hint: research the 1300w type!
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