If it's not SHA256 based (Bitcoin, Namecoin, etc) or Scrypt based (Litecoin, Doge, etc), and if there is a GPU miner for it at all, it's GPU mineable - which means pretty much everything else out there BUT SHA256 and Scrypt based coins.


 I personally like the concept behind CureCoin, but dunno if it's actually profitable at this point - but if you're gonna fold anyway, might as well make a LITTLE income from it to counter the costs. 8-)

 Which makes me wish there was an RC5coin.....


 DASH depends on your electric rate, it CAN still be profitable - but most mining is highly dependent on how much you pay for electric to figure if it's profitable or not.

BitFury MIGHT be ahead, but I don't think they're actually ahead of everyone - or only by a month or two at best for them.

 Innosilicon has been playing things pretty close since their last announcements in November - which "advance talk" was uncommon for them, given they didn't say word one about the A2 more than a week or so before they actively started selling those units (I'm pretty sure they were fairly mum about the A1 before that chip was actively available too).

 In THEORY KnC was months ahead of BitFury, but the silence on their "Solar" stuff for the last quite-a-few months has been resounding.

 Bitmain - probably behind but they like to milk "current stuff" as long as they can before they introduce a new generation.
 When they start doing sales on "used S7s" you know their 14nm gear is hitting or about to hit full production (ref the last S5 sales vs the initial S7 sales timeframe).

 Dunno what's going on with SFARDS, but their SF100 unit is already pretty far behind the curve on it's SHA256 side - as usual for their "dual miner" chips half of it is obsolete in a hurry the other half is still competative for a while wasting a large part of the cost of the chip.

 Lotta "wires crossed" issues, but you did eventually offer me a refund for the dead PS that was a bit more than I was expecting, so it ended up good in the end.

 YOU are the one that doesn't get it.

 Yes, the machines will produce less over time - but there is a limit on that, and they will NOT be "undercut" severely by NEW TECHNOLOGY making them obsolete and outdated and inefficient in less than a year.

 Also, a lot of current hashrate will dry up and go away from current miners when the 14/16nm generation renders them unprofitable. Not ALL, but a large majority - which will slow hashrate growth some.


 As it happens, a lot of miners HAVE in fact been operating for years at this point - not Antminer S5 or S7 units that haven't existed long enough to generate any track record at a 2 year of existance point, but quite a few of the older A1 based gear is still running after years among other examples.



 Also, why do you keep harping on the straw man argument about "turn 2.1 million into 6000 bitcoin"? Go back and re-read what was said.

 

You need powered risers to run those cards.

 Forget a standard case, you'll have to build some sort of custom frame setup.

 I'm pretty sure you need a fair bit more power supply to run 4 of those cards AND the rest of the computer, IIRC those vid cards alone will eat about 200-250 watts EACH.

 No clue who "FPS" is. I strongly recommend staying with a REPUTABLE power supply maker, I.E. Seasonic or EVGA.

 

 As I recall some coins use less than the max power the card is designed for, but I don't remember details as I've not bothered even looking at non-ASIC based coins for quite a while due to VERY LOW profitability (if any) and VERY LOW chance to achieve ROI on any of them at the almost 8c/KWH I pay for power where I live.

 Forget even TRYING to mine anything Scrypt based (like LTC or DOGE) with a GPU. The best GPU rigs started losing money 2+ YEARS ago on Scrypt coins unless you have FREE electric, due to the rise of Scrypt ASIC units - and even with FREE electric, you're going to mine so little your cards will probably die before you pay for them by mining.

 SHA256 based coins like Bitcoin are even worse - ASIC took those over more like 4-5 years ago, and you won't mine enough to pay for the RAM in your machine before it dies if you were to TRY to mine a SHA256 coin with a GPU-based rig even with free electric.

At a 12 SEER/CEER, your air conditioning unit will use appx. 28% of the power of yout TOTAL mining gear (not just the GPUs, but the entire computer) to dissipate the heat generated.


 I picked that figure as it's about the mininmum you can find for sale any more, at least in the US (I think it's a federal minimum efficiency standard or some such).

 At very low hashrate per chip.

 Definitely a tradeoff on "cost of chips" to run more efficiently vs. "lower power/cooling costs".

 Consider the S7 and the BM1385 - if Bitmain had put more chips-per-string in the S7, it would be noticeably more efficient - but would have cost quite a bit more per TH or they would have had to accept quite a bit less profit per unit.


 BW.com should be starting deployment of the B-Eleven (B11, whichever it is THIS month), might be part of the hashrate jump the last week or two.
 The current large hashrate jump doesn't HAVE to be all about BitFury.

 The 14/16nm full custom generation SHOULD be profitable for AT LEAST 3 and more likely 5-6 years, as it will have caught up with semiconductor state-of-the-art and there CAN"T be anything significantly better for a few years (probably 3-5 year timeframe, possibly LONGER, before the 8nm (IBM) or 10nm (Intel) generation hits commercial availability at all).

 The next generation WILL in fact be a new world for mining, since it WON'T have to look over it's shoulder wondering if it will have even 6 months to pay off before the next generation arrives.

 Actually, that power rate is very competative but NOT "half" what most major Bitcoin mining operations appear to be paying.

 MegaBigPower, for a well known and somewhat documented example, is ALSO paying a bit less than 3 cents/KWH (their mining operation is in either Chelan or Douglass county, or they may have some operations in both).

 Most of the Chinese big farms are paying NO MORE than 3 cents/KWH per multiple reports and comments about them.

 Folks that are paying 5 cents or more on big farms are rare to non-extant any more.

The power supply you can resuse for other things later though - next generation miner, next computer build, etc. - so if you don't fully RoI the PS it's not a big deal.

Very odd, I've been running my SP20 on static IP that I configured for a long time now.

 Try updating your browser - I can't do configuration on one of my machines that has an OLD version of Firefox, but works fine on a machine with a fairly recent version.
 I CAN look at the SP20 web interface with that machine, but about half the buttons don't work.

 The old machine is mostly my media-center box runnning Win2k, there IS no available Firefox upgrade for that old an OS past what I have on it.

 Guarenteed half the Bitcoin income the day after vs. the day before, give or take difficulty adjustment.
 100% guarenttee, no question about IF on that part.

 I grant there is a significant probability that the price of Bitcoin will climb quite a bit a month or two before the halfing - but with the way difficulty increases have been going since the introduction of the S7, anything older is going to be LOSING money long before the halfing if you have to pay more than 1-2 cents/KWH and afterwards it looks like the S7 (and Avalon 6 and probably the B-Eleven) will be unprofitable as well at that point.


 No, it's not CERTAIN - but that's the way the trend is looking and the way it HAS been looking for months now.


 I strongly suspect that the only PROFITABLE miners after the halfing will be the 14/16nm generation - though I also suspect if that's the case, that hashrate will dip quite a bit for a short while, *MAYBE* giving the one-previous generation a short "last gasp" of profitablility if you have VERY VERY cheap electric.

The best efficiency out of an S3 even undervolted isn't even close to the efficiency of a stock S5, much less an S7.

 Clock rate has almost no effect on efficiency on a Bitcoin miner, it's pretty much all about the chips the miner uses and what voltage it runs the chips at.

 On the other hand, with free electricity there's no point in worrying about efficiency except in that it can affect how much hashrate you CAN come up with if you hit the limit of available power before you run out of cash to buy miners with....

 1 - 14/16nm full custom should last about that long and perhaps a bit longer before something better CAN show up.

 2 - IF they do the initial build using currently-available 28nm full custom or the B11 14nm NOT full custom gear/chips.


 When 14/16nm gear shows up for Bitcoin mining, the hardware will have finally caught up with "state of the art" and there won't BE any "better node" to move up to for years.



 No NDA required, just have to pay attention to announcements and existing gear options.

 Hint.

 *I* was born quite a bit before the 1970s - in fact, I was already in the Navy by the "late 1970s".

 Gratuitous insults with zero factual basis just make YOU look stupid and make people tend to ignore anything else you have to say.


 
 You might want to keep "lead time" in mind - Bitmain certainly is, since they announced that they were already working on a 14/16nm design in the SAME ANNOUNCEMENT where they originally announced the S7.
 Doesn't mean they won't keep selling as many of their current design as they can while it's still profitable to do so, but if they were to wait to start designing the next generation like Avalon has already said they plan to do, Bitmain wouldn't have anything to compete for a long time.



 BTW - you STILL haven't addressed my question about how Bitmain (or whoever) is supposed to be competative to the 14/16nm gear after the halfing kills the profitability on anything less efficient.

 It's more about being able to move ENOUGH air to keep the radiators cool enough to dissapate the heat - we're not looking at direct air cooking which tends to need a LOT more airflow to work.

 Radiator on many common trucks or mid-to-high-power cars is designed to dissipate over 150KW out of about a 2 foot square area, for example - though that's when hauling a large load or accellerating hard or travelling at fairly high speed. Most of the time, the thing is loafing with the thermostat part-closed....

S5 is bloody near not profitable NOW unless you have VERY cheap electric.
That's WHY I've sold most of mine off (and am trying to sell the last one and my SP20).


 It will take time for the difficulty to double again due to the 14/16NM generation, especially given the reported yield rates from folks like TSMC on that node right now.
 On the other hand, diff has been rising quite fast since shortly after introduction of the S7 just from the "last gasp" of 28nm tech.....

The time and date of the halfing isn't quite that precise. It will change depending on difficulty adjustments, and LIKELY will be a little sooner - though almost definitely still sometime in July 2016.

 I missed the "Large General Service" rate sheet, which works as long as you don't exceed 5MW.

 MOST of their other rates are in the 4-5 cent range, after you factor in the load charges.

 How is every transistor on the new chip being laid out by hand a "strange announcement"? Hello, welcome to the definition of FULL CUSTOM DESIGN.

 Care to explain how a full-custom 28nm design like the BM1385 used in the S7 can compete effectively after the halfing against a chip that has demonstrated over twice the efficiency and should still be PROFITABLE by then (it's looking more and more likely that the S7 is going to hit "unprofitable" shortly before the halfing unless you have VERY VERY cheap or FREE electric).

 BitFury's real competiton for their new chip isn't going to be 28nm. It is going to be the upcomming A3, and at some point probably a 14/16nm full-custom chip from Bitmain, and possibly 1 or 2 others eventually going with full-custom at 14/16nm.


I discount KnC's Solar, if they had THAT in full production they'd be showing a lot higher hashrate climb than they've demonstrated since their last annoucement about the thing.



 I also suspect BitFury's claim about "widely available" is STILL talking about that lightbulb thing of theirs.