I have just noticed that you have SP35 for sale.
I have got an order for SP31 which I applied my compensation to but I have not transfered money yet.
Would it be possible to exchange this compensation for new code for SP35 and cancel the old order?
Sp31 was a much better deal. In Sp-35 you have just 10% increase in hashing, but 15-16% increase in power. Hashing is also guaranteed +/-10% instead of 5% for prior versions, so if your Sp-35 produces 5.401Th, it would be within parameters. In addition, it would probably ship about a month after Sp-31, so another 20-30% of effective hashing rate off. In fact, GB was by far the best deal and might be the equivalent of a ~7-9Th miner at the end of November. |
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I'm doing some comparisons between miners and would like to calculate the costs of the SP31 without the PSUs as most of the competition don't include PSUs in their offerings. Could you tell me what PSUs are in those SP31s? If not, could you give a rough estimate for the cost of the 2 PSUs if you were to buy them on Newegg for example?
Basically, I want to know the cost of the SP31s minus the cost of PSUs.
They don't come without PSU, and you cannot put in the regular PSU as a replacement. You would need to calculate the alternative by adding 3kw worth of power supplies to the alternative equipment cost (that does not have power supplies). |
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I should be getting my SP30's next week. I had a few questions.
I have the new macbook pro which has no ethernet port. I have bought a network switch to connect the hardware too.
My question is are there any mining softwares for MAC OSx which would support the SP30? And would it just be a one-off setup? or would the computer need to be constantly turned on.
Would I also need an ethernet to usb converter for my macbook pro?
To set up my miners through macbook air, I bought a thunderbolt to ethernet adapter. Apple charges quite a bit for this little dongle  After the initial setup miner itself should be connected directly to your router ( I use either airport extreme that has a few ethernet ports or use airport express that is wirelessly connected to extreme). Router is needed, but mac does not need to be connected. You can also access your miner wirelessly through router. |
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In the future there won't be any advantage in selling BTC for big company  Apart from usage increase, i don't think that it is very important. Ebay& paypal still have their ridiculous "return it if this is your whim" policy. It does not really matter if you got BTC or $$ if you have to refund some doubtful characters (especially when it concerns btc mining equipment). |
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overclocking the SP-20 will give you 26 $ / month more without counting the extra electricity that maybe vital in the equation overclocking or not.
The price for extra 100W of power is ~$8/mo for me, so i will still come ahead. I don't see why not to try overclocking if I already have this PSU. |
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you will have an earful from PCI-e "purists" who will say that PCI-e is supposed to handle just 75-150W. i am not one of them, but if I order Sp-20, I will be getting some of cablez creations (16 awg two pci-e to one port-V-shape connector)-especially if using evga 1300 (which has 8 connectors).
The customers will need to consult with the PSU manufacturer. For example, for SeaSonic X-1050 XM each PCIe connector can handle up to 324 W Apparently, EVGA 1300 also supports more than 300W power draw at each PCI-E connector http://forum.kncminer.com/forum/main-category/hardware/54037-evga-supernova-1300-g2-power-supply-good-for-neptuneI think that it does NOT mean that split connectors can handle 600W, just the same ~300W or slightly more in total, which makes it suitable for SP-20. EVGA1300 has 4 single PCI-E connectors and two double. I would prefer EVGA or some other 1200W supply, because then you can overclock Sp-20 to 1.8Th. |
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I think mentioned before coupons are only for sp31 cant be used with other miners
that was before the existence of Sp-20 and Sp-35 (whatever this is) was partially revealed. In any case, you can always use cash rebate. |
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I also noticed the load average is way lower on the CPU now that it was. was always above 2 before. now hovers around 1.2. any additional benefit to these devices to run with lower/higher loads?
That's likely the advantage of the newer version. In principle it will lead to less lag time in keeping the device busy and less time to process and send shares. However cgminer is so heavily multithreaded that it probably won't matter since the latency critical parts of the cgminer code are already prioritised. Still early days since I updated my S3 with the latest cgminer (3 hrs+) but I have noticed an improvement in the pool-side reported hashrate AND I suspect a reduced DiffR. This is on top of a faster UI (which I attribute to the lower load average). Just a question, would this cgminer run on an S1 (like to earlier Kano cgminer)? Could you report hash difference (if any) after 24hr? |
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Hi guys, I just got started with my first Antminer S3 and one of the features I liked the look of was the ability to specify three pools and mine from them simultaneously. I figured that this would mean a more stable level of mining income for me since using three pools would mean that the risk of one pool being very unlucky in any given time period would be offset by the chance of one of the other two pools being above average lucky. All things being equal, it should mean getting closer to a miner's average return, rather than peaks and troughs. At least that was the theory... When I tried this, I initially set it up with Ghash.io, Slush and BTC Guild. All was good except that GHash error rate decided to go to the moon! I started getting 60 - 80% reject rates per shift with masses of low difficulty rejects, despite specifying in their workers page to send them at diff 256. This was in stark contrast to when I first rigged it up online. I pointed it at Ghash.io alone and it performed very well, a few GH/s less than advertised but I'm only running it off of a CS550M PSU with two connectors so I hadn't expected it to overperform. Naturally I did what any sane miner would do and ditched GHash.io in favour of Eligius Jokes aside, does the S3 perform as rewardingly when split between 3 pools as it does when aimed just at 1 or does some GH/s never get utilized? And does anyone know why mine struggles with GHash.io difficulty when it's aimed there as part of a balanced pool set up but works fine with GHash.io if I set it to work 100% on that pool alone? PS Sorry to post this while an important discussion on security is going on but I wasn't sure whether to start a new thread for this or keep it in this thread where all the S3 expertise is clearly hanging out the purpose of three pools specification usually is NOT to split equally, but to provide a backup. BTW, you don't have to have a third pool specified, it could be just two. Yes, I am aware I can have 1, 2 or 3 pools. My view is that since BTC Guild, Eligius and Slush combined are equal to a little less than GHash.io or Discus Fish in terms of hashing power, by mining on all three I should get a similar rate of payout to if I were on one of the big two (although I won't get to payout thresholds as quickly). I prefer this because although I'm only a tiny fish in a big ocean, I'd like bitcoin to stay decentralised and because it gives me a smoother payout rate rather than the lumpy mining that comes from putting all my hashing power on one smaller pool. A steadier payout rate means I can use my BTC for everyday purchases more easily rather than being a hoarding or trading type that is concerned with BTC's value in fiat. In short, for me it's an extra income. But that's just my philosophy. What I'm really looking for is someone who knows whether an S3 running in balance mode delivers it's full GH/s and why balance and load balance mode seem to cause trouble with Ghash.io difficulty settings. at some pools (Slush's) you can select the payout at as low as 0.001 BTC; you can also point several miners to the same wallet address (in Eligius, just use <wallet address>_<name of the miner>), which will speed up the payouts. |
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Hi guys, I just got started with my first Antminer S3 and one of the features I liked the look of was the ability to specify three pools and mine from them simultaneously. I figured that this would mean a more stable level of mining income for me since using three pools would mean that the risk of one pool being very unlucky in any given time period would be offset by the chance of one of the other two pools being above average lucky. All things being equal, it should mean getting closer to a miner's average return, rather than peaks and troughs. At least that was the theory... When I tried this, I initially set it up with Ghash.io, Slush and BTC Guild. All was good except that GHash error rate decided to go to the moon! I started getting 60 - 80% reject rates per shift with masses of low difficulty rejects, despite specifying in their workers page to send them at diff 256. This was in stark contrast to when I first rigged it up online. I pointed it at Ghash.io alone and it performed very well, a few GH/s less than advertised but I'm only running it off of a CS550M PSU with two connectors so I hadn't expected it to overperform. Naturally I did what any sane miner would do and ditched GHash.io in favour of Eligius Jokes aside, does the S3 perform as rewardingly when split between 3 pools as it does when aimed just at 1 or does some GH/s never get utilized? And does anyone know why mine struggles with GHash.io difficulty when it's aimed there as part of a balanced pool set up but works fine with GHash.io if I set it to work 100% on that pool alone? PS Sorry to post this while an important discussion on security is going on but I wasn't sure whether to start a new thread for this or keep it in this thread where all the S3 expertise is clearly hanging out the purpose of three pools specification usually is NOT to split equally, but to provide a backup. BTW, you don't have to have a third pool specified, it could be just two. |
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interesting offering. We will see if the price can come in line. Needs to be sub 1k to sell in any quantities.
price should depend on when it starts shipping. |
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and charging you 100$/kW/m in electricity.....
 Which isn't that far off seeing as it includes housing and maintenance. exactly..why is $100kw/mo outrageously high, but $99/kw/mo-as great as it can possibly be (for some other hosting sites mentioned here). |
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what is a "tea of cup"?
Also some item for ~$10K is missing (current $5k +inflation)
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Its my article and I pester them a bunch for info on stuff. They were good enough to allow me to break the story first and I appreciate it so much. I really do like the the SP20 as it does fill the gap in the miner realm right now. Adding in they are talking a few week ship time as opposed to months and months this is a great choice. great sleuthing Congrats |
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well ...looks like us home miner types yelling on here about noise/elec use etc were listened to I'm shocked.......no asic company ever listened before (have to sit down...world is tilting) Searing p.s. bet the price point is $1500 usd at best imho......still tough to justify at these BTC prices and 15c kwh in my case ... and the difficulty being completely nuts...imho they should be priced at end of Oct time line at around $1000 usd....even then tough to make ROI but at least conceivable? maybe? kinda sorta? But hell I might even pay the extra $500 usd over the $1000 to mine with the beast .just to decentralize BTC (take that KNC my 1.7TH will put a dent in your profits by golly!) and WTF I have no life....so again nice whirly noises...pretty LCD's and winter is coming...there it is ..thats the ticket...it is a HEATER we need someone good at math to prove to me that at 15c/kwh I can bank money back on this beastie with costs/elec figured in...yea..ROI via HEAT (man am I grasping at straws or what) (delusion is a foul fiend that follows home miners everywhere don't ya know) ah....another hopeless ROI guest......my life is now again as normal as it ever gets........some people gamble some people get home miners it is all the same.....keeps us in line placid and in worker drone mode......(off to get a lottery ticket) Searing Kinda complicated to read but: http://www.mhi-inc.com/Converter/watt_calculator.htm1000 watts in 24hrs=81950 BTU. @ 12,000 btu per 1 ton of A/C=6.82 tons (seems kinda high IMO,something is off  ) At that rate you could heat a 1500 sq ft home quite well....maybe not in snow country  Or: http://rapidtables.com/convert/power/Watt_to_BTU.htmI don't think that you have correct math because you multiplied by 24hr. Correct number is 1000W=3412 BTU/hr http://www.rapidtables.com/convert/power/Watt_to_BTU.htmOne ton of A/C removes 12000 BTU in an hour, hence ONLY 0.28 tons of A/C is needed for 1000W If 6.82 tons were needed, my house would be at the outside temp of 100F |
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While the SP20 has what appears to be attractive specs depending on the price, it's really too little to late. Currently 1.6THs will only earn $14 per day before electric costs and that will be substantially lower by delivery in October. It's not much better than having a handful of USB Block Erupters a year ago.  SP31 is about $.7/GH, so if the SP20 comes in around $999 I'd call it a decent deal (meaning likely to break even). At $10/day that's 100 days to ROI. Not horrible by any means, especially during the winter when the heat can be beneficial for a home. yes, you got a right price point, especially since you are paying for a 1.2-1.3kw power supply (~$200-250) You can connect 2 X 600W or 4 X 300W as well you will have an earful from PCI-e "purists" who will say that PCI-e is supposed to handle just 75-150W. i am not one of them, but if I order Sp-20, I will be getting some of cablez creations (16 awg two pci-e to one port-V-shape connector)-especially if using evga 1300 (which has 8 connectors). Side comment-you guys are such a tease-why not an official release with specs/prices? |
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While the SP20 has what appears to be attractive specs depending on the price, it's really too little to late. Currently 1.6THs will only earn $14 per day before electric costs and that will be substantially lower by delivery in October. It's not much better than having a handful of USB Block Erupters a year ago. SP31 is about $.7/GH, so if the SP20 comes in around $999 I'd call it a decent deal (meaning likely to break even). At $10/day that's 100 days to ROI. Not horrible by any means, especially during the winter when the heat can be beneficial for a home. yes, you got a right price point, especially since you are paying for a 1.2-1.3kw power supply (~$200-250) |
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While the SP20 has what appears to be attractive specs depending on the price, it's really too little to late. Currently 1.6THs will only earn $14 per day before electric costs and that will be substantially lower by delivery in October. It's not much better than having a handful of USB Block Erupters a year ago. Yeah, isn't it crazy. This year is very strange: ~70 fold difficulty increase since last November, but more than 50% BTC price decrease. I would have never guessed that this would be the case. I don't think that this dichotomy can continue much longer, but who knows. |
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I guess Emerson ran out of power supplies LOL I'd rather buy a SP10 equivalent with the new chips .. but somehow SPT is going after the bitmain market tapping into the unused PSUs .. which is good, looking for a price-war soon. yes, they preempted bitmain's announcement (scheduled for next week). we shall see who is the prettiest of them all...at a price. i might prefer a couple of SP-20 to Sp-31 (which i cannot host at home), providing that prices are comparable (per th, minus powersupplies), but we shall see. |
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