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Re-read original post, OP stated he didn't care about profit, just raw Bitcoin income.
Electric cost doesn't matter in that case (usually).
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I had good luck with slush's pool ( mining.bitcoin.cz ) when I had the S5s and SP20E going.
Have zero knowlage of kano, was VERY underwhelmed in the time I was on Elgius except for ease of setup.
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There are different P2Pool implimentations, the ones I know specifically about are SHA256 based (any coin using that algorythm like BitCoin) and Scrypt (Litecoin/Doge/etc) - you have to set up a wallet for each coin then set up your P2Pool node to point at each wallet.
You can point it at multiple wallets at the same time, allowing for merge mining - but you have to set one coin up specifically as your "primary" with the others being merge mined.
I think I remember there being an X11-based version as well, but never got serious enough about non-DASH (Darkcoin at the time) coins to look into that option.
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5.2 is low, but not really VERY VERY low. Bloody cheap out of solar though.
Hosting is normally done on a cents/kw/hour type basis, NOT on a "shared profit" basis. You charge some price at a higher point then what you actually pay for electric, they get the profit but pay YOU a flat fee per hour (day/month/whatever) is the normal arrangement on hosting.
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Look up P2Pool, as I'm certain they implimented stratum in it a while ago.
Might need a bit of fiddling on configuration to get it working well with ASIC, but it SHOULD be doable (I had it running for a short while with some Gridseed 80 blades, but was getting too much dust and never figured out a good config to get rid of the dust).
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Speaking from Ionowhere.....
Power Color cards tend to be a bit marginal on cooling, but if you can manage to undervolt the card, or underclock it enough you should be OK.
I have not been real impressed with Lupa power supplies. I highly recommend Seasonic, and I've had good luck so far with the very few EVGA G2 1300s I've had powering a few of my miners the last few months.
Mineral oil is NOT intended for use on computing gear. Not a good choice at all.
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when you say prices are cheaper on this forum, do you mean i would buy them used from people?
The Amazon listings for S5s would also all be used, and Amazon is pretty strong on buyer protection (and a LOT LESS so on seller protection). Their fees do tend to be high, so they tend to have some of the higher prices on stuff, it pays to shop around. Also, keep in mind that the current difficulty flatness is probably a one-time abberation that won't repeat anytime soon, your income will mostly likely drop slowly 'till July, then the reward halfing will drop it in half (give or take difficulty adjustments - I DO expect to see a couple of difficulty DROPS shortly after the halfing though probably NOT enough to make up for the halfing in total, then start increasing again).
If i'm correct, the S5 is pretty stable, and since the diff rose and the halving is coming near, a lot of people get rid of perfectly fine S5's because they will not make any more profit with their current electricity rate.
[/quote}
That's me, my S5s were more stable than my Internet connection, but at my current electric rate they were making all of $1-$2 a WEEK, so I sold them off while they were still worth a substantial fraction of what I bought them for.
Ditto the SP20, but it held it's value better.
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I too suspect Bitmain shipping the current batch has had an effect, as it takes time for them to get shipped outside of China.
Seems like every time they start shipping a new batch the last few months, there's been a dip in the hashrate - just not quite this long of one.
BW might have finished building it's current batch of B-Elevens using up all the chips it bought to do so, and might have decided to not bother making any more chips with their newer chip in the wings in a few months (this is just a guess though).
Avalon sales on the 6 I'm certain are a small blip comparatively, that unit was never competative and I seriously doubt a lot of folks ever bought them.
No, I'm NOT betting that the hashrate has suddenly gone stable - I'm betting it's a short-term abberation.
Bitmain hasn't announced sales on "used" S7 units yet, so I'd bet they're still mining with them - for now.
P.S. the hashrate is starting to head up again. Let's see where it goes the rest of the week.
I heated my entire HOME this winter with my miners - and still had to keep 2 windows open the whole time to avoid overheating (with thermostat-controlled fans, and during the one bad cold snap both windows were only open a VERY little).
Yes, I DID take this into consideration when I was figuring on if my S5s and SP20 ever achieved RoI (they did, but barely, per my calculations - would have done a LOT better if I'd managed to buy them 1-3 months sooner).
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Change pools.
Your current pool is ripping you off.
Most pools use some form of proportional payment method, where you are paid for the work your miners did during a block even if the miner happens to go offline during the timeframe the block is actually solved.
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I assumed he meant that many chips wide, where the current does multiply. The wider a string, the more stable it's going to be as any changes in current demand (which then affect voltage) in one chip will be buffered out by the remaining chips in the node, so you really don't want to run a single-wide string if you don't have to.
If it's "wide" it's not a string, it's a parallel setup. The "golden rule" definitely predates Christianity, and might predate the Jews as well, but is NOT specifically a "religion-based" related way to interact with folks. I've known too many Athiests that follow it (well, most of the time, we're ALL human after all!). I am one of the VERY few failures of the Navy in their attempt to addict all sailors to coffee - I already had a Pepsi habit and didn't LIKE coffee made "the Navy way" (though my Navy Sludge was Master Chief Mess Cook approved after they tought me how to make the stuff). |
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And hopefully a socket that's actually rated for that kind of current, and blades on the fuse that are rated for it also, not like the AM Cube. The AM Blade had socketed fuses on some of 'em, which was handy since fuses blew on those more often than there was good hardware-failure-related reason for it (and the soldered-on ones were difficult to replace). But I wouldn't have run 8-10A through one of those little sockets. My board needs to be good for at least 20A, probably 25A just in case of crazy people. Automotive fuses make perfect sense for a 12V 25A load. Hopefully a 30A-rated board-mount socket won't be too hard to find.
Not sure I've ever seen an automotive blade-type fuse mount for a circuit board, but they DO make sense and should be cheap if they exist, and the fuses themselves are quite common in many ratings (specifically including 20 and 30 amp). The older cartridge-style fuses come in plenty of amperage and are reliable, but they do tend to be harder to find and more expensive nowadays. |
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Most of the coins are likely being sold to pay for mining expenses at these levels unless there is evidence that most miners are real speculators and they are off-setting their expenses so they can take a mine & hold strategy?
Holding and trading are better ways to make bitcoin than just selling; a good trader can make money from his miners even if the miner has negative roi assuming the market is good. holding isn't a good idea at the moment, because btc seems to be holding at the price of 400 at the moment. But yes , most miners do sell their bitcoin as it is the best and safest option besides trading or holding. But you'd make MORE if you didn't mine, in that case. I tend to hold when I think the price is low, and sell when I think it's high - hasn't gotten low enough the last few months for me to buy, and it's getting close enough to the halfing that I'm almost ready to reset my "buy/hold/sell" thresholds. |
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The buck to drive it is another potential bone of contention. Cuz' it's drawing just under 40A (38.8A) @ a Vcore of ~.580V PER CHIP. Imagine the current draw of a string of 3 or 4 chips.
Current would be the SAME for a "string" of any number of chips (not counting I2R losses in the power distribution traces and such) - just have to run the voltage higher. So a buck for 4 chips in a string would still be just under 40A but would be supplying about 2.32 volts |
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Honestly, is their really money to be made with mining. I mean being a home miner not a big firm with enough money?
Right now, no. But there have been times in the past and probably will be a time in the near future that home miners will be able to mine for a profit again - if your electric is cheap enough. |
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As of right now, a working Titan has the best efficiency (I am not counting the Sfards SF100 unit, as those are very rare and apparently Sfards has abandoned trying to sell the things any more) - but Titans have a long history of having one or more of the die on their chips die, they are almost as "overpower the PCI connector" in their board-level design as their Neptune design (which has been documented to START A FIRE on at least one occasion and has been talked about having done so on other occasions due to how overloaded it's PCI connector and corresponding power traces on the PCB are), and just generally was not a good RELIABLE design.
Next is a tossup between an A2-based unit and an Alcheminer (efficiency on both is pretty much equal, close enough that individual unit variation matters in ranking them) - the A2s variants are a lot more common. A2s have a long reliable history, Alcheminers have a shorter history but seem to be good on reliability as well.
Innosilicon announced tapeout on their next-gen A4 Scrypt miner chip several months ago, based on their posts miners based on THAT chip could literally show up any day
(along with their A3 SHA256 next-gen chip).
The Alcheminer folks have announced they're working on a next-gen Scrypt chip as well, but seem to have less financing available and aren't as far along with it.
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So from now on, the bitcoin ASIC mining will not be compete with the technologies, but with the cheap electricity.
That's been a major factor for YEARS now. Why do you think most "big farms" have been located in low-cost electric areas? |
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GPU mining for profit of any Scrypt coin (specifically including Litecoin) has been impossible for 2+ years now, unless you have FREE electricity - and even then your GPU will probably DIE before you manage to achieve enough mined Litecoin to repay the cost of the GPU.
The fastest GPUs never managed to even get up to 1 MHash/sec - while eating 200+ watts for the ones that even got into the BALLPARK of that rate - while my A2 Mega Terminator units achieve 110 MHash/sec on ballpark 1200 watts power usage.
Even the old Gridseed 80 "Blade" units managed over 5Mhash/sec on ballpark 100 watts power usage (mine were mostly manageing 5.4 at about 90 watts with brick power supplies), and those are NON-PROFITABLE today unless you have VERY VERY cheap electric.
non-SHA non-Scrypt coins can sometimes be mined for a profit with a GPU, and if your electric is cheap enough you might even manage RoI on a GPU-based rig in a year or two, but forget Scypt mining with a GPU.
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If it takes two years of mining just to break even your ASIC purchase => yeah, well... why are you mining? Just to break even or mine at a loss at a high hashrate? And then you can't resell it because by that time it is crap/obsolete.
The 14/16nm generation of ASIC should have a usefull life probably exceeding 3 years and more likely 5-6 years. This is the generation that will finally catch up to overall Semiconductor State of the Art, no more "1 year or less between generations" in catchup mode. I anticipate this will be a MAJOR game changer to ASIC mining. BTW - folks manage to sell Antminer S1 units EVEN TODAY - and those are quite a bit more than 2 years old. Granted, they can't get back what they bought them for - but they should have long since achieved RoI on them..... |
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CureCoin does more for curing Cancer than Bitcoin does...
...(which isn't a lot in either case, but at least CureCoin TRIES to do so to a degree).
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When I have a significant amount of profit, for the near term it will probably go into more of whatever hardware is actually generating a profit for me.
9-)
I strongly suspect the big mines aren't as profitable as many folks assume - they've been hit by diff increases like everyone else, they just tended to get hardware cheaper so they could RoI it somewhat sooner.
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