Topic: ANTMINER S7 is available at bitmaintech.com with 4.86TH/s, 0.25J/GH - page 194. (Read 528055 times)

I just ordered an paid for a Batch 3 from the antpool site.  We'll see what happens.

Looked like batch 7 was going back in and out of sale again.

Try this too:  [email protected]   

Do they make this PSU anymore?  Efficiency?  How much/where to buy? 

Did you attach any fans to those PSU?  From what I recall I don't think those PSU have fans of their own.

 as well as the stillborn triplets
https://bitcointalksearch.org/topic/m.12963707

Twins connected  with twin PSU


Click to enlarge

I kept on clicking and got a couple of them.

gone again

I see it differently.
I have at the moment 31 x S7 + some water cooled S5 for  heating .  150TH/s  mining at this month daily 1.10 BTC  (Antpool PPS )

I have 3x 50A  220V   It is always full. Some of the miners have been at a friend's house - today 4 x S7 Max 12 euro day , in a month less as 400 euro.
My home electricity consumption is not more than 3500 euro in a month.
So total 4000 euro or less for electricity.

If the BTC  price is 300 euro , then if I can sell all mined BTC and  I got 9900 euro or more per month.

In this case, I have recouped the purchase of three S7  miners per month-  2000 euro (or less) per miner with shipping and 20% VAT

But I sold last my BTC, when 1BTC=350 .

With mining you can earn more than with the purchase of BTC and holding them.

But you must sell when the price is high .. And you must have a reserve to pay for the electricity when the BTC  price is low for several months.

 as well as the stillborn triplets
https://bitcointalksearch.org/topic/m.12963707

Twins connected  with twin PSU


Click to enlarge

you can do that too (S7 Twins)
https://bitcointalksearch.org/topic/m.12982754

You can not send back the entire miner. Bitmain warranty does not work that way.

2. All sales are final. No refunds will be given. Defective machines can be repaired for free under the Bitmain warranty policy. After the warranty period, machines can be repaired for the cost of parts and labor
4. Customer must return the defective parts at own expense after opening a support ticket and troubleshooting with Bitmain's instructions.

https://www.bitmaintech.com/productDetail.htm?pid=000201511170341298180m44675v0613

I was lucky with my 3x S7 repaired blades but unlucky with 2 xS5+ blades which is last sent back from china.

After a few hours

If u gonna mine more BTC then you had to paid for 31xs7 then its ok.
And instead of paying for electricity when price is low you could just buy more BTC
Do your own math:
1. BTC you had  to paid (If you paid USD then BTC you could buy instead of miner) for that 31 S7 with shiping&tax. There is no need to count psu etc. + How much BTC you could buy instead of paying for electricity x any BTC price you want. Versus
2. How much BTC you will mine x same price as in 1.

If 2 = more euro then you did right choice (for making more money)
i know many ppl dont care and have enough money and just want to mine becouse its addictive (i was miner too)

But at the end just for money making calculations:  if your mined BTC - electricity + BTC for your miner after you sold it = more BTC than you paid for the miner = WIN. If its less then it was better to just buy BTC and hold.

Its diferent if ppl using miners for heating like few posts above. Its almost always WIN ;p

got my batch 5 today, all setup & running well... just wanna share & i think most would've noticed the slots on the sides of the miners.

slotted 2 x batch 5 with my batch 3, just like a lego block. makes it more sturdy. like the housing.

all of them hash as advertised, stock. all pcie's connected from 4000W psu. not gonna touch anything till the 90 days warranty passes.

temps are at mid 50's. very low HW error. 0.0001%

the hashrate does jump around quite a bit but avg's out to the advertised hashrate.

1 of the batch 5 has a woong woong woong fan sound if fan is above 60% .. tried to loosen & tighten front n back fans, no fix.

another batch 5 controller has no green LED light but it works fine so i'm not gonna make a fuss or touch anything. the LED next to the red LED near to LAN port.

other than that, pretty happy. no warm cables (16 AWG custom made) or so.

can't wait to see more ideas when the 90days warranty passes. i'm sure lots of guys here are trying something & doing innovative stuff yeah ?

FW is stock sep 15. i think i saw some guys updated the OCT FW. any difference ?

waiting on the data cable to save a controller board. hooking up 2 in 1 when cables arrive.

regarding ROI .. yes it's tough & NOT impossible at this stage but later, yes but depending on individuals .... i;m gonna mine the the chips, board, etc melts away so i think i'm gonna hit ROI & prolly a lil' profit.

buy BTC or miner almost the same imo, we all want BTC go up !

about the Antminer S7   
i would like to know if there is an option via software to silence the buzzer ?
if not is there a way to access the buzzer and silence it via hardware ?
please also tell me what situations make it buzz.

got my batch 5 today, all setup & running well... just wanna share & i think most would've noticed the slots on the sides of the miners.

slotted 2 x batch 5 with my batch 3, just like a lego block. makes it more sturdy. like the housing.

all of them hash as advertised, stock. all pcie's connected from 4000W psu. not gonna touch anything till the 90 days warranty passes.

temps are at mid 50's. very low HW error. 0.0001%

the hashrate does jump around quite a bit but avg's out to the advertised hashrate.

1 of the batch 5 has a woong woong woong fan sound if fan is above 60% .. tried to loosen & tighten front n back fans, no fix.

another batch 5 controller has no green LED light but it works fine so i'm not gonna make a fuss or touch anything. the LED next to the red LED near to LAN port.

other than that, pretty happy. no warm cables (16 AWG custom made) or so.

can't wait to see more ideas when the 90days warranty passes. i'm sure lots of guys here are trying something & doing innovative stuff yeah ?

FW is stock sep 15. i think i saw some guys updated the OCT FW. any difference ?

waiting on the data cable to save a controller board. hooking up 2 in 1 when cables arrive.

regarding ROI .. yes it's tough & NOT impossible at this stage but later, yes but depending on individuals .... i;m gonna mine the the chips, board, etc melts away so i think i'm gonna hit ROI & prolly a lil' profit.

buy BTC or miner almost the same imo, we all want BTC go up !

I would give them a call before you do anything...1-844-248-6246