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7321  Bitcoin / Hardware / Re: ANTMINER S7 is available at bitmaintech.com with 4.86TH/s, 0.25J/GH on: October 26, 2015, 08:29:57 PM

So is that a right choice to buy http://www.frys.com/product/7590536?site=sr:SEARCH:MAIN_RSLT_PG for S7?

I haven't seen S7 personally with my naked eyes, however I am sure 10 x 6 pin PCI-e connections has to do with connectors.


It appears to have ten (10) 6 pin connectors for PCI-e ports.  It also "says" it is 12 + Volts.  As long as it's 12 and not too much less, you will not have to be concerned about hash rate or HW errors.

Thank You dmwardjr,

You made my day. I will wait for my S7 to arrive. If this PSU + S7 works, I will add more hardware in future.

Now, I need to find the way, how much will be daily power consumption.. :-( I have no idea


this is simple if you want $, then multiply your energy cost (+transmission fees)/kwhX1.21X24=daily cost in $$
You will be using 1.21 extra kw/mo per miner.
Hopefully, you are not in CA or NY.
7322  Bitcoin / Hardware / Re: ANTMINER S7 is available at bitmaintech.com with 4.86TH/s, 0.25J/GH on: October 26, 2015, 08:20:22 PM

people are being surprisingly nonchalant about it.
...I woke up at 3am this morning and at first could not figure out why.
then i heard a tiny noise coming from s7 (much less than s5)
;run to it, Internet is down ("internet not working well" situation)
miner is still doing something and fans are on very low, and air is coming out quite hot.
Thankfully, I had a Vornado fan blowing into intake for such situations and to help with cooling, so no critical overheat occurred.
Internet came back within 2-3 min and it was back to hashing.

all i am saying: beware and try to adapt. i can practically guarantee that it WILL happen in large hosting because usually service guarantees just 98% uptime.
If service loses internet, but power is on....

I'm curious...  Did you already have the October 23 Firmware update on this rig?

no, i didn't, as i usually wait a few days-this saved my hide a couple of times when upgrades were bad.
upgrade might help, but it seems that it is a problem that migrated from s5 to s7 and if it was easy to fix, they would have done it long time ago.
7323  Bitcoin / Hardware / Re: ANTMINER S7 is available at bitmaintech.com with 4.86TH/s, 0.25J/GH on: October 26, 2015, 07:58:19 PM
So all this tells me, that I shouldn't try mining with S7 at my home with APW3-12-1600 PSU.

What if I buy this type of PSU http://www.frys.com/product/6806106?site=sr:SEARCH:MAIN_RSLT_PG  

I think lot of other people are doing same. See here https://www.youtube.com/watch?v=uNbaZwqdPAc

He is using http://www.newegg.com/Product/Product.aspx?Item=N82E16817152044 PSU with S5 Miner.

However, I can't find power consumption for S5 whether it's 120 or 240V

S5 and S7 are really nothing alike on power.  I mean just on ports alone were talking 4 PCIe ports compared to 9 + 1 PCIe ports.     I personally would not pick that raidmax if your talking about powering the S7.

If you don't use all 9 power ports you will void warranty, and 1 for controller.   More and more home and hobby miners I think you will see getting 240.

That's my problem.  I can't justify going up to 240, with the uncertainty on the halvening next year, I'm just hoping to break even on this with my lower winter electric rates and we'll see what happens to the price next June/July.  Either efficiency will have to greatly increase, or pool hash will have to drop unless people don't mind losing money mining at higher and higher difficulties.

I rec evga 1300 G2 with two extra PCIE splits, ordered separately. One can be had used for $125-130 or new/new other for ~160-200 before tax.
7324  Bitcoin / Hardware / Re: ANTMINER S7 is available at bitmaintech.com with 4.86TH/s, 0.25J/GH on: October 26, 2015, 07:52:59 PM

Kind reminder:
When mining with S7, be sure that you've connected the internet properly and the internet is working well, otherwise, the boards may get burnt easily Sad

I would not take this seriously. This message is not from Bitmain.
They would have used proper channels, and not post a poorly written post on a forum, with an unknown username, lol!

It is a Bitmain account, Janet's successor as she is off doing other things. I've asked them to add it to the BITMAIN signature.

how can we make sure that "internet is working well"?
"oh, no, your miner boards got burned....you did not make sure that internet worked well".
I understand that he means well, but this is just impractical, seriously.

Yea that is a bit unnerving considering no ISP is 100% guaranteed and even my home router needs to be bounced once in a blue moon.

people are being surprisingly nonchalant about it.
...I woke up at 3am this morning and at first could not figure out why.
then i heard a tiny noise coming from s7 (much less than s5)
;run to it, Internet is down ("internet not working well" situation)
miner is still doing something and fans are on very low, and air is coming out quite hot.
Thankfully, I had a Vornado fan blowing into intake for such situations and to help with cooling, so no critical overheat occurred.
Internet came back within 2-3 min and it was back to hashing.

all i am saying: beware and try to adapt. i can practically guarantee that it WILL happen in large hosting because usually service guarantees just 98% uptime.
If service loses internet, but power is on....
7325  Bitcoin / Hardware / Re: ANTMINER S7 is available at bitmaintech.com with 4.86TH/s, 0.25J/GH on: October 26, 2015, 07:10:24 PM

Kind reminder:
When mining with S7, be sure that you've connected the internet properly and the internet is working well, otherwise, the boards may get burnt easily Sad

I would not take this seriously. This message is not from Bitmain.
They would have used proper channels, and not post a poorly written post on a forum, with an unknown username, lol!

It is a Bitmain account, Janet's successor as she is off doing other things. I've asked them to add it to the BITMAIN signature.

how can we make sure that "internet is working well"?
"oh, no, your miner boards got burned....you did not make sure that internet worked well".
I understand that he means well, but this is just impractical, seriously.
7326  Bitcoin / Hardware / Re: ANTMINER S7 is available at bitmaintech.com with 4.86TH/s, 0.25J/GH on: October 26, 2015, 07:03:29 PM
Received an email, and UPS Tracking number
ordered on Oct 16th batch 3

will be delivered on Oct 28th according to UPS




I am wondering as to why batch 2 is like a foster child, always last to pay attention to.

They can ship the miner until 10 of November... then it will be delayed, not before... My Batch1 was send last day  Roll Eyes

1. first of all, you got a wrong day, as +10 from oct 25 is Nov 4, NOT Nov 10.


that's true...  Embarrassed

I was thinking the batch 3 could delivered up to oct 30 (+ 10 days)...  (batch 1 could up to sep 30)  Grin

ah, OK
7327  Economy / Speculation / Re: Roger Ver interview with a prediction: Up to 250K/BTC. on: October 26, 2015, 04:25:56 PM
250k per BTC, yeaaaaah......well......I cannot accept this idea, it just seems to crazy to me.

Maybe $2.5k, in the next couple of years.

2.5k per coin.... really?

https://ip.bitcointalk.org/?u=http%3A%2F%2Fi.imgur.com%2FQNzA9wo.png&t=557&c=T2LpQg0_COuE5Q

Look at how much things can change. 1 dollar seemed impossible in 2009, then 10, then 100, then 1000.. it all kept happening. It is meant to happen that we start obliterating past ATH's through time No one is ready for the real price of Bitcoin yet.

well, in the alternative universe Gil Amelio never invited Steve Jobs to return, his CTO adopted Windows NT (as she wanted to do) and Apple went close to bankruptcy before it was bought by HP for $1.5 bil in the "alternative" 1997.  
7328  Bitcoin / Mining speculation / Re: rumors of 3.5Th antminer S7 "lite" on: October 26, 2015, 04:11:11 PM
Honestly I believe it as it would push a lot of chips and units and it is something the home miners want, would love to see this and the avalon release (and possibly the bw miner), going to be a great generation!

I like the comparison.

the lost generation: s1-s5, Sp10-30, av up to 4.1, asicminer (RIP), cointerra (RIP), knc (withdrew from selling)
the greatest generation-S7, bw?, av6 plus gekkoscience's sticks/pods
the silent generation-SP50?
baby boomers-will come after the halving, will be vast in numbers if price cooperates and employ improved 14/16nm for up to 0.05-0.07J/Gh. Network>1exahash.

bitfury is omnipresent, but invisible. I would call it "dark matter" or "dark energy"  Grin
7329  Bitcoin / Hardware / Re: ANTMINER S7 is available at bitmaintech.com with 4.86TH/s, 0.25J/GH on: October 26, 2015, 03:35:13 PM
Received an email, and UPS Tracking number
ordered on Oct 16th batch 3

will be delivered on Oct 28th according to UPS




I am wondering as to why batch 2 is like a foster child, always last to pay attention to.

They can ship the miner until 10 of November... then it will be delayed, not before... My Batch1 was send last day  Roll Eyes

1. first of all, you got a wrong day, as +10 from oct 25 is Nov 4, NOT Nov 10.
7330  Bitcoin / Hardware / Re: ANTMINER S7 is available at bitmaintech.com with 4.86TH/s, 0.25J/GH on: October 26, 2015, 02:33:58 PM
Received an email, and UPS Tracking number
ordered on Oct 16th batch 3

will be delivered on Oct 28th according to UPS




I am wondering as to why batch 2 is like a foster child, always last to pay attention to.

Maybe too many higher performing miners.. They are using Batch 2 to flush out miners performing under spec...

good explanation, but people paid slightly less for less speed, not for getting it much later  Angry
if they don't have enough, basically almost any miner could be sent as b2 because it is 4.66+/-5%, so +5% bracket is 4.89
7331  Bitcoin / Hardware / Re: ANTMINER S7 is available at bitmaintech.com with 4.86TH/s, 0.25J/GH on: October 26, 2015, 02:28:33 PM
Received an email, and UPS Tracking number
ordered on Oct 16th batch 3

will be delivered on Oct 28th according to UPS




I am wondering as to why batch 2 is like a foster child, always last to pay attention to.
7332  Bitcoin / Hardware / Re: Spondolies SP50 on: October 26, 2015, 04:14:21 AM
The biggest downside of the s50 is the controller.  If it dies 110th hash dies.

So it forces you to have a spare controller.

Now if the controller is like the s-7 it could piggyback three units.

I don't have a nda with them and don't have any extra details but it looks like a three piece minimum to have a good roi.

 That is about 50 kwatts of power .  That means a commercial setup as almost no home owner has that much power.

unless you have to purchase a "recommended" 5-10K service contract with it (that would replace the controller within 24hr).

OT: it is hilarious at one place I know quite well. They always buy expensive equipment without a service contract, then the piece breaks and they have to rush the contract (which is now much more expensive) to get service. I guess, this kind of stuff gets the economy going, LOL.
7333  Bitcoin / Mining speculation / Re: rumors of 3.5Th antminer S7 "lite" on: October 26, 2015, 04:05:23 AM
Do we have any sources on this rumor.  I have people that also would like this to be confirmed or denied.


-D

https://bitcointalk.org/index.php?topic=934581.msg12769055#msg12769055

Honestly, nobody knows how accurate this is, hence it is 'rumors" in "speculation" rubric, NOT in hardware.

7334  Economy / Speculation / Re: Roger Ver interview with a prediction: Up to 250K/BTC. on: October 26, 2015, 01:42:49 AM
R. Ver will sell most of his coins surely once Bitcoin is reaching the $5000-$10000 levels, and enjoy the rest of his life in Japan or wherever he plans to go to. Bitcoin at $250K is pure madness.

5 tril, yeah maybe a bit much during next few decades.
If price will simply follow halving and increase in proportion to that, then my calculations show $250K in ~39 years or 2054.
Of course, the price does not have to follow halving exactly and in proportion, but it was fun to calculate.
7335  Economy / Speculation / Re: Roger Ver interview with a prediction: Up to 250K/BTC. on: October 26, 2015, 01:01:41 AM
So that would give Mr Ver the equivalent of $75 billion in buying power. I think the rest of the world may question the distribution issue a bit before it reached that stage.

It probably won't because M Ver will divest long beforehand.
Besides, does the world care that some mexican guy has 77 bil currently? Not in the slightest.
Risto had a good divestiture plan: basically selling 10% at each doubling above your average buy price.
7336  Bitcoin / Hardware / Re: Unofficial Spondoolies SP20 thread on: October 25, 2015, 10:42:44 PM
Does somebody change thermal paste on chips ?
How work after do it ?
 Wink

mixed results at best.

if you read this thread and others you can find info on it.

the biggest heatsink issue is 2 screws not 4  

the repasting of the chips does not help much.

I would think really good pads are better.

but frankly underclock the gear to 1250gh solves over heating pretty much every time

^^^this and dusting it off with compressed air-I noticed when it run even at the same speed for a while(~1220gh), chip temp slowly rise (over months).
I was able to decrease some chip temp by 5C with everything else being equal, and it is super-cheap too (a can is $5 or something like this)
7337  Economy / Speculation / Re: Roger Ver interview with a prediction: Up to 250K/BTC. on: October 25, 2015, 05:20:18 PM
i have seen many people predicting 1 btc to be worth $1,000,000 at some point, which is beyond insane. but now a well respected and quite an important bitcoiner says $250k per coin, makes me think he is simply not thinking in a realistic manner.

well, people ganged up on Harry Blodgett in 1998 when he said that AMZN will go to $400 eventually (when AMZN was $120 split adjusted) and he even lost the job during first internet crash because of his optimism. AMZN went to be $3600 now (split adjusted from Oct 1998).

People have notorious difficulty pricing in the long term trends.  
7338  Bitcoin / Hardware / Re: ANTMINER S7 is available at bitmaintech.com with 4.86TH/s, 0.25J/GH on: October 25, 2015, 05:08:07 PM
Sounds like they may be releasing it to compete with the Avalon6 that is suppose to come in at 3.5 Th and $310/Th.  Specs can be found here:
https://en.bitcoin.it/wiki/Avalon6

3.65@1100w at the wall?

I'll take the S7's 4.86@1185w measured at my wall

If we do the math at 1100 watts divided by 3500 GH/s [It did say +/- 10%], that comes to 0.314 watts per GH/s verses the 0.25 watts per GH/s of the S7.

I plugged in the numbers at $0.1/kwh and the numbers are almost identical between Batch3 and this one (289 vs 283days to profitability), so it is a coin toss, but BMT might jump ahead in profitability with batch 4 (if it is 3.5TH, 900W and $1000 before shipping)

I personally believe more "true" S7's we become available soon.  They have no problem at all selling them.  The S7 is a prime piece of hardware!  They might also create another one with lower hash rate.  However, I believe the S7 is here to stay for a while.  It may very well go into 20 batches at a minimum.


Agreed, and even the BW offering, WERE it available, is not super compelling given the likely timeframe for delivery.  The pre-order is $80k and that's a little rich when dealing with an unknown company.  I had high hopes for the SP50 when announced, but no further information to us 'home' miners.

With all due respect to those in the thread who are either still waiting on miners, or having problems, these are excellent machines, and I wish we had purchased enough to replace all units in our farms on day one instead of waiting on delayed shipments and now uncertain if more true S7's will become available for sale.

well, apparently, we had a word from a hosting fella who just put an order for 3ph worth of competitor's machines, which is a nice chunk of change.
however, i am sure that BMT will have a nice comeback, but they WILL have to cut the premium on prices somewhat hence the 3.5Th/~$1000 prediction.
Maybe they will make MOQ of two then. It would suit me just fine.

Hmmm....at "3ph worth of competitor's machines", he must have ordered SP50s? If i understand the market correctly, I don't think anything else would be available to him.

no, see the reference at the top of your quote.
7339  Bitcoin / Hardware / Re: PSU's on: October 25, 2015, 04:24:18 PM
Whats the best "deal" on a PSU for a single S3? Just looking for a cheap PSU that'll be able to sustain a single S3 for awhile while I make a hobby out of BTC mining with free electricity.

I have one (last) Corsair CX500M PSU for sale. It is like new (used for a month or two).  It is a cheap, but sufficient miner and could run S3 just fine.
https://bitcointalk.org/index.php?topic=1184814.0
If interested and have BTC, PM me.
7340  Bitcoin / Hardware / Re: How to Reduce Heat and Noise? on: October 25, 2015, 04:16:26 PM
1. You can build some noise barrier.

2. Downclock S7 to freg 550  , put fan  to 37% to get 3000 rpm.
   S5 fan to 30% to get 2700 rpm

or
3.
Click to enlarge



below only works on 1-2 miners:

1. I put S7 on a shelf rack (bottom shelf), then put couch pillows on three sides and on top shelf in an igloo fashion.
2. around exhaust, I put large poster cardboards (since I have them) to create a sort of labyrinth (like an incomplete skewed "T") so exhaust bounces off a couple of times before exiting. i had to experiment with boards to find the optimal angles.
3. This resulted in just 60-61 dB at 1m distance even on automatic fans (4320/4200rpm)

cheers
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