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2041  Bitcoin / Hardware / Re: ANTMINER U3 Discussion and Support Thread on: February 20, 2016, 09:24:21 AM
U3s really that bad? I was going to get one or two before I heard about the zombie problem with these miners. Friends say the same thing as well.. suggestion? Huh

If you have automation to help with zombies no for the money they are not  bad miners.   If you don't have automation on fixing... .it becomes a huge pain reseting zombies.

So all depends on your situation and controller you use.  I personally liked my U3's after I got crazy guy's firmware on a R1.
2042  Bitcoin / Mining speculation / Re: £16,000 ($23,209) for profitable Bitcoin Mining farm? on: February 20, 2016, 09:19:14 AM
When do you think the S8's will be released? What are the next gen miners? SP50s and S8's?

there is no info at all about this, nor that it will be called s8, nothing is telling us that they will continue with the next number, in fact the s6 does not exist

based on some other thread it seems that there is the possibility of an increased efficiency of 75%+, 750 watt instead of 1200 for something that is as fast as one s7

The even number have all been big miners with PSU's attached.  I agree I have heard 0 about next gen bitmain they are pretty good at keeping secrets.   But I don't expect a S8.  I think day's of even ones are over.  I am still wondering if we will see a S7+.

Most likely will be a S9 I'm guessing.   And I think they keep 3 hashing board design as I think they made good money off of PSU sales.... was really smart of them on that as far as business decision.
2043  Bitcoin / Mining speculation / Re: Why bitcoin hashrate significantly decreased since 13feb2016 on: February 20, 2016, 09:15:30 AM
Because any gear that isn't running at 0.25W/ghash or less is no longer producing and profit and after the next diff change in the next 24 hours it will certainly be at a loss. There was an estimated 400 petahash of gear that should be shutting down over the next couple months. Looks like about half of it has just turned off. That or network variance. However considering that build out of new gear is still happening and hash rate is going down perhaps variance can't account for a decrease. Either way .. mining with anything but the S7, the latest Avalon and BW.com's 14nm miner thing will effectively cost more than it will mine even with fairly cheap power.

 Depends on your electric cost. My remaining S5s are still profitable - though not by a LOT - at 7cents/KWH.

I'd suspect it's more about Bitmain shipping their next batch of S7s (there's always been a noticeable drop at that point as THEY stop mining with them but it takes a week or two to get them packed up, shipped, and the recievers to get them back in service) with possibly some addition from other folks selling and shipping miners like Avalon.

 Might also be that one or more Chinese ISPs are having some sort of connection issues the past week?


One thing people should keep in mind is when they are profitable but not by a lot... it's normally a good time to sale.   Price of sales will continue to go down and will do a big drop once next gen hit's market.

I was barley profitable on last gen (avalon 4.1's, sp20's, S5's, S5+).  I sold them all and bought coins with them for the temporary future.  Eventually they will go back into mining gear but I made a heck of a lot more by selling then I would have by minin on tiny profit.
2044  Bitcoin / Mining speculation / Re: Diff thread Feb 19 to Mar 3? picks are closed setup time.. prize = 0.2 btc on: February 20, 2016, 09:12:43 AM
Well a nice slow start to the Period. Run rate so far is -6%  Smiley I think there is an important difference this Period in that we entered it with a Full correction to the Difficulty, perhaps even an overcorrection? In the previous two periods we had an under-correction of at least 10% because of when Hash was added during the Periods.


Rich

I dont think so, the drop in hashrate coincide with the Batch 10 shipping out and there was a lot of BTC dropping in Bitmain,s pocket. It might not be the only factor but i would not be surprised if they mined on B10 during the latest holiday and when coming back they did tons of shipping.

I guess until they hit the door we'll see less hashrate.

From looking at group buys it was big and small orders to.  PCFLI finally got his I think  that it's been around a month waiting on for those who bought.  And small customers are getthing batch 10 shipped.

I think it's temporary that they are just moving places, and will be up and running pretty soon.  But bitwsidom has went down:

Bitcoin Difficulty:    163,491,654,909
Estimated Next Difficulty:    176,351,943,784 (+7.87%)
Adjust time:    After 1900 Blocks, About 13.8 days
2045  Bitcoin / Mining speculation / Re: Cheapest BTC miner for learning? on: February 19, 2016, 08:23:38 PM

Get yourself a nice usb powered hub, and a RPI as a controller.  Then by some GekkoScience compacs. They simply  are best BTC mining usb sticks right now.  For learning this route is very good.

Only thing you need to be aware that chances of ROI are pretty much none unless you sell it someday and made  money on sale.

Thank you for your reply. All I need to do right now is buy a GekkoScience miner and a usb powered hub. I have a spare RPi lying around so this shouldn't be a problem. These will make a great tool for educational purposes. If I then decide to sell them, I would do so by listing it at a price a little bit higher than what I have bought them in order to ROI. But that would be very unlikely since I will keep them for time sake.  Smiley

I should mention there is no guarantee with ROI.  Sidehack is making a pretty sizable 2nd batch of compacs.  So there are more on market, you might not be able to sell for higher... and you might be able to hard to say.

I know i sold some of mine when he was out and it worked out great as people wanted a product that was between production runs.  Not all will get this lucky.
2046  Bitcoin / Mining speculation / Re: Diff thread Feb 19 to Mar 3? picks are closed setup time.. prize = 0.2 btc on: February 19, 2016, 08:20:49 PM
Read this new's intersting as we  don't hear a lot about inner workings  of KNC mines.  They had a stabbing happen in one.... http://www.coindesk.com/prosecutors-indict-suspect-bitcoin-mine-stabbing/  crazy.

But the intersting part is they consider the workers contractors.  I wonder how many mines do consider people contractors and not a direct employee.

probably just a fight between 2 foreign laborers.. i doubt they were arguing about the bits and who gets them.

i like Elwar's comment on the article.. pretty accurate "I'm seeing a trend now. Headline says "blockchain" when it is good news, "Bitcoin" when it is bad news."

on another note.  would it be so hard to post a link to the new thread before locking the previous one? 
i must not know how to use the forum properly but it took me a bunch of clicks to find this new one.


The trend of saying blockchain vs bitcoin has been going on for a while.   It's been a bit since the last BTC conference I went to but they talk about how a investor hears bitcoin some instant bad thought's.

When trying to get investors a lot use blockchain technology as the buzz word.   It seems to work.  Chances are blockchain will get more and more  popular the more mainstream BTC goes,
2047  Other / Beginners & Help / Re: Best Online Bitcoin Wallet on: February 19, 2016, 08:05:25 PM
i think the best bitcoin wallet might be blockchain.info, its really newbie friendly and you can adjust the fees

Anyone who uses it please turn on 2 factor authentication.  I worry when someone  new reads blockchain.info they sign up without 2fa.  And that scares me for them.

With 2FA password alone does not good..... so use it great tool to keep it a little more secure.
2048  Bitcoin / Mining speculation / Re: Cheapest BTC miner for learning? on: February 19, 2016, 08:03:08 PM
a
The good cheap miners would be an antminer U3 or U2.

The U3 is at around 60GHs so not that big and is around $20-30
The U2 seems to be around 2GHs.

I think the U3 is also only a few hundred grams.

Potential: you could also get an antrouter R1 and smash it to view its components for educational purposes, as a miner it probably isn't good but is small.

EDIT: their price has increased so this may be better:
GekkoScience Compac 8-16 GH/s (23 GH/s max.)

Otherwise, if you want a standalone aio miner use an antminer s1 or s2

Great! Thanks for sharing these miner recommendations. The ones that I liked the most were the Antrouter R1 and the GekkoScience miner. I will give these a shot and educate myself as well with it. For testing purposes, how do I actually mine testnet Bitcoins with it? Is it really possible?  Smiley


Get yourself a nice usb powered hub, and a RPI as a controller.  Then by some GekkoScience compacs. They simply  are best BTC mining usb sticks right now.  For learning this route is very good.

Only thing you need to be aware that chances of ROI are pretty much none unless you sell it someday and made  money on sale.
2049  Bitcoin / Mining support / Re: Please help. Replacing pci express male connectors on Antminer C1. on: February 19, 2016, 07:59:50 PM
Hello.  The antminer C1 has 8 pci express male connectors built into it.  I have been powering it with two EVGA 80 plus bronze 500 watt power supplies.  That uses 4 of the plugs (two for each supply).  All was well for like a year, then the power supply pci express connectors melted into the board's male plugs and I had to RMA the power supplies because the plugs were melted.  Thankfully, they let me rma those.  The male plugs on the board had the power supply plugs melted into them.  Luckily I was able to just go ahead and use the other 4 plugs once I received the new power supplies.

Well, the same thing has happened again.  The power supply plugs melted into the board plugs so now all 8 plugs on the Antminer are ruined and need replaced.  Is this easy to replace the male pci express plugs built onto the C1 boards?  Do I need specialty plugs of some sort, or can somebody tell me how to do this and where i get the replacement plugs?  Pleeeeassseee?  I'm not sure if they use typical pci express plugs.  It looks like i need to unsolder the 6 pins from the opposite sides that connect it to the board, but there are three L shaped metal connectors that plug from the board into the bottom of the pci express male plugs.  I seen some replacement plugs on Frozen CPU so far, but they are just all plastic, with no metal or even holes where you'd attach them to the board.

Hopefully they let me RMA the power supplies again.  But I will definitely need to replace the male pci express plugs on the board as well.

I'd highly appreciate any assistance and advice that the community can provide me.

 Huh Huh Huh Cry Cry Cry

If a psu kills your miner once... don't   go  back to using it again.    If you do it again a 3rd time I suspect we see same thing.

But post pictures so we can see how bad it is. Likely someone with some soldering skills would be able to fix it. But again we need more pictures/details to tell much.
2050  Bitcoin / Hardware / Re: ANTMINER S7 is available at bitmaintech.com with 4.86TH/s, 0.25J/GH on: February 19, 2016, 07:56:00 PM
I don't see point buying S7, when after halving they are not profitable, if you don't have very cheap electricity.

by very cheap you mean less then 3c a kwh.. :/

the price on batch 11 is insane.. it will cost more then you will get out of it, even if you are lucky and there are no more 20% diff increases..



But still people are buying these new S7s so I guess Bitmain will continue on flooding us and the difficulty increase will continue.

Cmon guys.  Do you really think its S7s or even Avalons increasing the hashrate?

We know Bitfury had that working "demo" chip quite a while ago now.  My bet is the first batch just got deployed in the past few weeks.  BW has their chip also, but I'm thinking its not them as they are probably a little more behind.

What really happened here is someone got their new 14/16nm chip up and running in a big way, and just hasn't publicly stated such.

I would not ruleout S7's at all.At this point I figure  bitmain has got the lowest price they will on producing them.  I also figure they have very  good electricity prices at internal mines.  So add  those together they still can  profit off S7's I think.

I think S7 is at least a portion....how much we will likely never know.
2051  Bitcoin / Hardware / Re: ANTMINER U3 Discussion and Support Thread on: February 19, 2016, 07:52:37 PM
But at least with the gekko sticks they are fun to tinker with!  They all respond the same, too, which isn't something you can say about the U3.

After getting a R1 with cray guy's firmwareI enjoyed my U3's they worked very solid with that setup.  Now talk about windows I ran for a few weeks or so.... horrible experience. So it  can very greatly.

I suggest everyone getting something  with automation on fixing zombies or you will be babysitting your U3's.
2052  Bitcoin / Hardware / Re: Solar array starting to look good. on: February 19, 2016, 07:49:59 PM
I think we all agree look amazing.  Do you mind sharing cost of getting up  and running on solar?

Also how  long do you have to run till the solar gear has paid for it's self
2053  Bitcoin / Mining speculation / Re: Diff thread Feb 19 to Mar 3? picks are closed setup time.. prize = 0.2 btc on: February 19, 2016, 07:46:33 PM
Read this new's intersting as we  don't hear a lot about inner workings  of KNC mines.  They had a stabbing happen in one.... http://www.coindesk.com/prosecutors-indict-suspect-bitcoin-mine-stabbing/  crazy.

But the intersting part is they consider the workers contractors.  I wonder how many mines do consider people contractors and not a direct employee.
2054  Bitcoin / Mining speculation / Re: New miner advice on: February 19, 2016, 06:12:34 PM
My solar panels are generating 475kw/hr give or take,
The 475kw is my excess after powering my home and charging batteries

There's something wrong with the units you are reporting.  I sincerely doubt you have a solar farm producing 475 kilowatt-hours of power unless you've invested about $500,000 into an array farm and have it running on several acres of land.  I think you mean you have 475 watts worth of panels, that is much more reasonable (and not enough power for even a single S7.).  Maybe you mean you sell and average of 475KW back to the grid per month, also reasonable.  But I am confident you do not generate 475,000 watts of excess power per hour.

I think he got the digit in wrong place is my guess.  Which is kinda scary went talking about investments and to be so far off.  It is something you should know by heart.

If you don't like number crunching figruing best time to mine, best time to sell.  You really will not enjoy mining it is a lot of speculation and I love it, but for some they like buying coins and going that route. Which is a not a bad option.
2055  Other / Beginners & Help / Re: Best Online Bitcoin Wallet on: February 19, 2016, 04:25:14 PM
A lot use blockchain as a hot wallet it is very popular (I'm guessing most popular).   You can do things to secure it more I suggest looking at my hand's on with Yubikey and blockchain. https://bitcointalk.org/index.php?topic=1353231.0

And no matter what make sure you treat it as a hot wallet.  As it is that so it should effect how you use it.
2056  Bitcoin / Mining speculation / Re: Mining project with S7 and solar panels on: February 19, 2016, 04:21:32 PM
I am planing to start mining with a close friend of mine soon. We are planing to start with 2 antminer S7 and enough solar panels to cover the energy cost. The location we are planing to start our project is in west coast of Turkey where we have a suitable place. It is also nice spot as solar panels are providing good performance. Although we still have some questions regarding timing. I wanted to have some opinions from profesinal miners on this forum. Should we wait for halving before starting this project? Numbers look promising but is there something we are missing? Any advice will be appreciated.

okay here in the usa various states have programs about selling excess power back to the power company.

so the array I am involved with is a 60kwatt array. Forum member  buysolar is a solar contractor he is building on his property.

it is a 60 kwatt array.  We do not use batteries.  We use 20kwatts from the array and sell 40kwatts to the power company.

At the end of the month the power bill = $0

and we mine with free power on a monthly basis.

of course the upfront cost for the array and for the mining gear is a different story.

I'm curious, how much physical space does a 60 kwatt array take up? how much surface area would you need? and what does that number of panels cost?

If you have a ton of space... you can do some really cool things.  I know this will not make sense financially but Disney made a solar array in shape of Mickey's head -https://www.reddit.com/r/pics/comments/46i2gv/this_is_what_disney_worlds_solar_farm_looks_like/ .   

Thought it was kinda neat did not think about any of these having a artistic view to it.
2057  Bitcoin / Mining support / Re: Overheated S4 Antminer, what to do? on: February 19, 2016, 04:17:13 PM
Also OP before running again if your getting this hot to cause damage.... work on cooling.  I would not run again if you know it is hot to the point it will damage miner's. 

I think you need to do this for the 9 others.  As if problem is still there you chances will have it happen again.   But I hope it was just PSU.   Might open it up and see if visible damage due to heat on anything.
2058  Bitcoin / Hardware / Re: New Miner X5 on BitFury 16nm chips on: February 19, 2016, 04:12:49 PM
Say, that sounds an awful lot like something I'm working on.

Make it happen  Sidehack.. you got plenty of us that want it.

To support your efforts.



I think you missed some of the posts.  He is doing it - Community Miner Design Discussion   https://bitcointalk.org/index.php?topic=1368507.0

Kilo was great and let him post about it.  So it is a more open dev, which is always fun to watch.
2059  Bitcoin / Hardware / Re: B-Eleven sha-256 ASIC miner on: February 19, 2016, 04:11:01 PM
whats gonna be nice if it all falls in line  we will finally have 4 big makers of miners to pick form, prices should come down a lot, we should have our pick of what size we want to buy or can afford etc and still make out good, if it all works out like they claim time will tell.

Avalon
Bitmian
bitfury
BW aka LK.


if it all happens and they all keep selling to the public after it happens, i see a very bright and nice time for all .

 Not sure why you're including Avalon in that list, they stated when they released the 6 that they had NO PLANS to go to the 14/16nm node (which at best puts them several months and more likely a YEAR out from now before they could possibly have their own 14/16nm chip).

 You SHOULD include Innosilicon, though.

Innosilicon has been quite for a long time though.  They took on a big task going after 2 chips at once.  They mentioned A3 and A4 dev all at once.

I would have focused on A3 if I was them and got it as it would have much higher sales.  Then worn on the A4 on scrypt.  I do wonder if they hit some snags as they were very open a while back, and have went pretty silent.
2060  Bitcoin / Mining speculation / Re: Diff thread Feb 19 to Mar 3? picks are closed setup time.. prize = 0.2 btc on: February 19, 2016, 04:07:13 PM
Always love rollovers I think it ads to the fun.  I think we will see bitmain S7's that shippped out hitting network soonish.

One thing I hope goes up is value.  With all the difficulty jumps BTC value could use it to. Were starting at around 420 per coin during this difficulty period.

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