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1  Bitcoin / Mining speculation / Re: Total noob in mining on: November 07, 2017, 09:09:34 AM
Greetings earthlings!
recently, I bought few contracts on Genesis mining, but I want to mine more and there are no BTC contracts. So I decided I will go with real mining. I understand the theory, but struggling with picking up the right hardware. Can you suggest the most recent configuration I can use? I have some 2000 dollars. Are ASIC miners the thing? Which?

Thanks in advance!

Bitmain’s Antminer S9 is the best bang for your buck and the most efficient miner available (sometimes).
But it’s not always available. Like right now.
A distant second is the Avalon 741. More expensive per TH/s and significantly less efficient.
I would keep watching Bitmain for the next release of a batch of S9’s. Although the 741 is available now.
Purchasing an S9 from a reseller will cost you too much and tends to be risky.
2  Economy / Service Discussion / Re: H/w Hosting Directory & Reputation on: October 16, 2017, 06:41:45 AM
I have a 10x10 cage and two 42U cabinets in a NYC datacenter for an existing business. We are quickly migrating most of our applications to AWS, so there is a lot of empty space in the colo facility but our monthly cost is fixed.

Would it be worth it for me to get some mining hardware in there to offset the cost of the unused space? Also, would the existing power (multiple 110v PDUs per cabinet) be sufficient?

That really depends on your power cost.  Being in a Tier-II or Tier-III colo in NYC I can't imagine the power is cheap.

OP said his costs were fixed.
It depends how long your contract is for and how much time you want to spend figuring how to mine. Then there is the the question of how risk tolerant you are.
The first thing you should probably do is go to Bitmain’s website. Using the specs for their S9, L3+ and D3 miners, plug the cost, speed and other info into their respective mining calculators to see if you will have the data center space long enough to earn back the cost of the miners. Right now I think the the order of profitability from high to low is D3, L3+, then S9 or T9.  But that is also the order of instability (high to low) as far as profit margin volitility goes. 
Make sense?
To give you an idea right now, 150 Th/s on an S9 SHA 256 miner gets you about $200/day.
1000 Mh/s (2x L3+) gets you about $40 - $60/Day. 
But no matter what miners you choose, count on waiting for a batch to be released, then after you pay, it will be 1-2 months before they ship to you. Markets will change between purchase and delivery and as you are mining. So don’t expect to get as much profit as the calculations say you will.  But as I said time is likely to be your biggest limiting factor.
3  Economy / Service Announcements / Re: Bitcoin Miner Hosting Fall Fire Sale ($60.00 per KW) on: October 05, 2017, 12:25:44 AM
Are you still in business?
4  Bitcoin / Pools / Re: Pool, 120% PPS on: October 03, 2017, 11:42:14 AM
They just recently dropped back down to 105%. It has fluctuated a few times in the last couple of months, even to the point of having 0% bonus.

With little or no notice.
5  Bitcoin / Pools / Re: Pool, 110% PPS on: October 03, 2017, 05:48:34 AM
Could not tell you. I left when it stopped being 120%.
Which happened very quietly.

At Viabtc now. They switch between BTC and BCH depending on profitability.
Past 24 hrs. BCH has been 169% more profitable than BTC.

EDIT: The Pool has found 44 blocks in the past 6 hours.
I used Viabtc for a while.  I am back to  They are at 110% PPS, and they have an auto URL that switches between BCH and BTC.
Viabtc has a massive BCH hashrate when it’s more profitable. is better on BTC.
I have found you have to move around as conditions change. No one pool is the best all the time. At least not from a profitability standpoint.
6  Bitcoin / Pools / Re: Pool, 120% PPS on: September 30, 2017, 01:59:03 PM
Could not tell you. I left when it stopped being 120%.
Which happened very quietly.

At Viabtc now. They switch between BTC and BCH depending on profitability.
Past 24 hrs. BCH has been 169% more profitable than BTC.

EDIT: The Pool has found 44 blocks in the past 6 hours.
7  Bitcoin / Hardware / Re: Ebit e9 miner with 6.8Th/s from Ebang company a new rival for existing producers on: September 24, 2017, 05:32:11 AM
I have the E9+, the 9th version. I have to admit, it wasn't the best investment I could have made. The miner itself was ok, using it was the same as an S9. The problem is the cost and power usage. I tried tweaking the frequency down to get it to achieve better power consumption, but it seems that the miner itself is already pretty tweaked. for the price, it really isn't worth it compared to an S9. Mining is about to become increasingly cutthroat since many people are coming into mining due to the recent price boom.

Only those with cheap electricity will survive the coming year

Truer words never spoken. Hate on Bitmain, and they often deserve it, but no one else has really come up with a more profitable magic money machine yet. And given how long the S9 has been on the market, I’ll bet they already have a working  replacement. I bet it’s mining away in their HQ right now.
8  Bitcoin / Hardware / Re: Bitmain's Released Antminer S9, World's First 16nm Miner Ready to Order on: September 14, 2017, 09:09:25 AM
does anyone know the release dates bitmain had for the s9s with 14 th?

like when they originally released them and when the first shipping/deployment dates are specifically

I ordered an S9 13.5TH on 7/8/17 that was promised to ship between September 10-20.
UPS says it will be delivered in the US Friday, 9/15.
But don't recall when I saw the 14TH sale.
9  Bitcoin / Hardware / Re: Avalon A7 announced on: September 09, 2017, 05:45:20 AM
A simple google search shows plenty of hosts, but do you have one you recomend.

Sadly no one I recommend without reservations except Bitmain Warranty in Denver.  But in most cases you need to purchase your miner from them in order to get hosting.  If you are seriously looking for someone to host your miner pm me.
10  Bitcoin / Hardware / Re: Avalon A7 announced on: September 08, 2017, 06:35:42 AM
I have two of the 741's on order (maybe, no BTC address either), but actually see 3 orders   (kept refreshing, so maybe 6 total).

Given my high electric rate, if Bitcoin drops to 3750 my breakeven becomes 1 year.
So I probably need to host these somewhere.

Since I have only done GPU's (these are my first ASIC's), should I mine at home first to understand them?

Also:  how much network traffic do these use?  The GPU's are minimal

And yes, assuming 0 increase in difficulty, too late at night to figure out what affect a rise in difficulty would have on the breakeven with a declining BTC value.

To be honest I have only had Antminers for the past two years and never purchased one of these newer Avalons.  But in general the three most common barriers to using btc asics at home are:

   1. Electricity - do you have enough watts and amps to power one, let alone three.  And are the circuits where you need them.
   2. Noise - Don't know about these, but the noise from an S9 is deafening.  Where I live there are no basements and it gets too hot in the garage.  So I have no where to put these things where my family would not kill me.
   3. Heat - you need to be able to exhaust the heat outside and provide relatively cool air to the intake side of the fan(s).  That's not always an easy or cheap environment to create.  It depends on your house.

So if you can handle those three things go for it.  I mined in my office and still do with gpu rigs.  But once the ASICs got to the S5's they were just too power hungry and hot to keep in the office.  I moved to a local data center for 18 months.  Then the electric rates were too high.  This was when btc was stagnant in the $200-$260 range for a long time. So finally I moved them to Washington State.  They have been there for 18 months or so now.  Good cheap power and it usually does not get too hot.
Anyway - my $0.02.
11  Alternate cryptocurrencies / Pools (Altcoins) / Re: █▓▒░-< [ZPOOL.CA][HashTap™][FlexFee™] The miners multipool >-░▒▓█ on: September 05, 2017, 05:23:11 AM
Hello, Im kinda confuse for setting antminer L3+ to zpool
Can someone please setting it for me ?
I was try this :

stratum+tcp:// -u (btc address) -p x

Is that right ?

yes, in theory correctly written, try to connect zpool

Same miner (L3+), want to mine the most profitable SCRYPT coin but the instructions on the main page are confusing.  They don't explicitly say this is a profit switching pool, except between algos.  Instructions on the pool page say;

YOU MUST ALWAYS set your currency in your password field: c=<SYMBOL>-

But will I mine the most profitable Scrypt coin if I don't list a coin in the password field?  Just like @isukabtc has above:

stratum+tcp:// -u (btc address) -p x

Like just use the field for "x" or "123" or set my difficulty?  Or is this NOT a profit switching pool?
I'm thinking it is, just does not exactly say it....that I can find.
12  Bitcoin / Mining speculation / Re: What ASIC to buy (noob) on: September 04, 2017, 05:43:30 AM
I believe the most efficient ASIC miners right now from a profitability standpoint are the Antminers, D3, L3+, S9, T9 in that order.
But only the S9 and T9 mine bitcoin and can be discussed here in the Bitcoin Mining Forum.
The D3 and L3+ mine altcoins and need to be discussed in the Altcoin Mining section of the forum.

As of right now Bitmain does not appear to have any of these for sale.  I recommend you wait until they announce a batch for sale, then purchase directly from them.
ASIC miners are expensive and you might as well get a warranty if you are going to spend that much money. 
Additionally, there are very few reputable re-sellers of ASIC mining equipment.  And most will not sell you a miner unless you pay them more than they can make by mining with it themselves.  That means you will pay more for the miner than you will be able to recover from mining.

There is no easy money here I guarantee.
13  Bitcoin / Mining speculation / Re: Antminers S1, S2, S3, S3+,S4,S4+, S5, S5+, S7, S7-LN, S9, R4 and L3+ on: September 02, 2017, 06:32:56 AM
Those L3+'s will produce more value per day than the S9's.  At least they have been since they came out.  One L3+ will produce the USD equivalent of about 3x S9's per day.  This ratio fluctuates somewhat everyday and that level of profitability may not exist forever.  But you should take advantage of it while it does.

So I would do what Mr. Phil suggested,  just above me.  Mine LTC or Digibyte or whatever is the most profitable Scrypt coin with those L3's.
Then convert whatever you are mining into btc on one of the exchanges.

Take a look at to help you decide the best coins to mine.  Select only Scrypt.  Turn off SHA256 and the other algorithms.

Or - the most simple option is to point your miners to Nicehash.  They will mine the more profitable coins for you and then pay you in btc.  
Go to to figure out the closest servers to you.

I have 2x L3+'s and they mine on Nicehash almost exclusively.  Especially, when I don't have time to keep up with what scrypt coin is the most profitable every day.
14  Bitcoin / Hardware / Re: Store Recommendation: on: September 02, 2017, 06:11:33 AM
Besides buying direct from the manufacturer, you can count on one hand the reputable Antminer re-sellers in the world.
It's not worth the risk or the inflated cost.
15  Bitcoin / Hardware / Re: How do I buy from bitmain? on: September 02, 2017, 06:07:10 AM
You are not going to get a current production miner for less than what Bitmain charges direct.  If that is what you are looking for.  There is no wholesale price for miners unless you are buying 500+ direct from Bitmain.

I have probably purchased 30-40 miners from them over the years.  You just have to have btc ready so when Bitmain starts selling you can jump on and purchase within the first hour.

I would not trust any secondary vendor, except Bitmain Warranty.  Nor do you want to pay their inflated prices on Amazon, eBay, Alibaba, etc.  At least not for an S9.  Bitmain's prices for the L3+ and D3 are much lower in relation to how long they will take to pay for themselves as compared to the S9.  So I can see paying more for them with a secondary vendor.

Build some GPU rigs in the interim while you are waiting for the next batch.
16  Bitcoin / Hardware / Re: Ebit e9 miner with 6.8Th/s from Ebang company a new rival for existing producers on: August 16, 2017, 03:57:09 AM
"All these Chinese manufacturers are really a pain in the ass to deal with"
Unless you speak Mandarin..which I do...(Which often just pisses them off since they can't play dumb and brush you off so easy)
I'm so fed up with Bitmain..
About time they had some serious competition..their monopoly on effective miners is killing mining and getting to be a serious threat..
Not to mention their habit of shipping so many dregs & dogs.

Well I agree, at least when I have a problem.  And I don't speak Mandarin!  But when I don't have issues I'm happy it's so hard to get a miner.  It's a huge barrier to entry for your average Joe.  At least in the US.  If there were new ones available all the time on Amazon the difficulty would be even higher than it is now.  Which I know seems unimaginable.  But after years of btc being a thing, it's still hard for most people to easily get their magic money machine.  And most of the time I'm fine with that.
17  Bitcoin / Hardware / Re: Large Order at BitMAIN (Guys need your help) on: August 04, 2017, 05:54:25 AM

•I have preordered Antminer D3, Payment method by bank
•Should the bank account be in my name? Or does not it matter that the account is in the name of the beneficiary?

it is better to transfer funds from your name, but if you provide payment paper than you are ok, I've done it several times without any issues, I was just uploading payment paper every time to their support just to be sure everything is fine

But what does this message mean, in Bitmain Order Detail?
(IMPORTANT!: if the beneficiary name is incorrect,our bank cannot assign the funds to our account)
it means you should double check transaction, beneficiary name means bitmain's name, bitmain technologies limited

Yes, Bitmain's name has to show on the transfer exactly as they instructed.  Transfers are not like personal checks, where anything close will work for depositing.
Yet another reason why it's worth the time to set up on an exchange and transact in btc.  Or ltc, or dash.  Anything but fiat.  It's a sure way to screw up your order.
18  Economy / Computer hardware / Re: [WTS] Antminer L3+ on: July 20, 2017, 08:06:16 PM
Yeah.  Do the math.  It's a good price.  Bitmain could sell theirs for more.  The ROI on the L3+ is a lot better than the S9.
19  Bitcoin / Bitcoin Discussion / Re: The Barry Silbert segwit2x agreement with >80% miner support. on: July 14, 2017, 03:26:15 PM
gmaxwell's reply to that article:

Gregory Maxwell

Blockstream does not have any patents, patent applications, provisional patent applications, or anything similar, related to segwit. As is the case for other major protocol features, the Bitcoin developers worked carefully to not create patent complications. Segwit was a large-scale collaboration across the community, which included people who work for Blockstream among its many contributors.

Moreover, because the public disclosure of segwit was more than a year ago, we could not apply for patents now.

In the prior thread where this absurdity was alleged on Reddit I debunked it forcefully. Considering that Rick directly repeated the tortured misinterpretation of our patent pledge from that thread (a pledge which took an approach that was lauded by multiple online groups), I find it hard to believe that he missed these corrections, doubly so in that he provides an incomplete response to them as though he were anticipating a reply, when really he’d already seen the rebuttal and should have known that there was nothing to these claims.

As an executive of Blockstream and one of the contributors to segwit, my straightforward public responses 1) that we do not, have not, will not, and can not apply for patents on segwit, 2) that if had we done so we would have been ethically obligated to disclose it, and 3) that even if we had done so our pledge would have made it available to everyone not engaging in patent aggression (just as the plain language of our pledge states): If others depended upon these responses, it would create a reliance which would preclude enforcement by Blockstream or our successors in interest even if the statements were somehow all untrue–or so the lawyers tell me.

In short, Rick Falkvinge’s allegations are entirely without merit and are supported by nothing more than pure speculation which had already been debunked.
Politicians say that sort of thing all the time. At a later date they get caught, makes excuses, lie, etc. When there is a conflict of interest, individual credibility are shot. Beside, we all know what politicians' pledges are like. Make loads of them to win an election and do something else when in power. Greg, is basically behaving like a politician. A decentralise Bitcoin does not need centralise organisation such as Blockstream and their partners getting involved in development. One must ask, what do these companies want in return?

The article "Blockstream having patents in Segwit makes all the weird pieces of the last three years fall perfectly into place" may be an editorial and without merit.  But I would give Mr. Maxwell's rebuttal the same one star review.  He may be an "executive" of Blockstream (which given his Core duties is a conflict of interest), but that does not mean he knows whether patents have been applied for or not.  His response boils down to "trust me."  
And you see, it's that very loose element of the human condition and lack there of, that inspired Satoshi to invent bitcoin.
So, no.  I at least won't trust any of you.  History has shown that to be bad for my financial health.
20  Bitcoin / Bitcoin Discussion / Re: The Barry Silbert segwit2x agreement with >80% miner support. on: July 14, 2017, 09:21:51 AM
It's this crap that makes all pro SegWit folks suspect in my mind...
I wouldn't say "all", but a good chunk. The fanboys and stakeholders are usually pretty easy to separate from the logical believers.

I lump all righteously pro SegWit posters together because I can't discern their true motives.
The movement has lost all credibility in my view because of their censorship, scare tactics and strategic media campaigning.  All of their arguments conveniently leave out the part about how Blockstream will fail if it's not implemented.
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