<<crickets>>
Big Diff jump. Much harder to hit a block!! Been suck on this bestshare": 19198012551.985401 for a couple days!! That's for sure. 93 billion - I don't think any of my miners have ever seen a number that high. Next estimation is 108 billion.  here is the lowest estimate I can find https://bitcoincharts.com/Blocks 389403 Total BTC 14.985M Difficulty 93448670796 Estimated 96038295084 in 1701 blks Network total 803850.738 Thash/s Blocks/hour 7.21 / 499 s so if you take 96 and 108 the middle is 102 for next diff or a 9 to 10% jump. still big a very big number about 90ph in hash |
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Thread has slowed down. To be honest I have a feeling it has to do with Bitmain's recent price drops. As far as this miner still have the 2 running. Both run very reliable, I still have 1 PSU that seems to run a little around 11.9. I honestly suggest to go with nice server PSU with voltage adjustment if possible. Although I am enjoying the efficiency though still. Below is pick of them running currently: yeah you get numbers I got with ATX psu's 6500gh for 2 the server kit from finksy that let me boost to 12.55 volts give me 7700gh for 2 I am happy with that. |
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Seems like a lot of work and add more cost / real estate space when noise is a concern with the 2880W PSU. I want to thank you for the recommendation on going for the 2 x 2K PSU instead. The 2X2K IBM PSU have a much smaller foot print and noise is fully controllable based on the fan chosen.
P.S The fan you recommended just arrived. I don't have any brackets for these PSU. Would those Tape you recommend be sufficient to mount these FANs. I have that on order as well and it should be here by Wednesday. The individual 2K board makes it much harder to combine the PSU then with the newer board you got. Can't wait for Finksy to release the new board to the public. I'm definitely in line to get 1. Really love the hashing results you been publishing. It definitely justify the cost for me upgrade to 220V outlets.
i think the 2880watter is good if you do not have a sound issue. i would not want to do five of them if i had to sound proof them. i came up with a plan to mount fans for the 2000 watt psus send me a pm i will mail a kit to you if you are usa based. |
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Compacs are sold out!
good to know so no one has any . By no one no reseller has them as your were the last to sell out. |
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Apple mac mini's are ideal to store huge amounts of bit coins. Buy a pair 2014 mac mini's cost = 499 + 499 install latest bitcoin core on one of them. then use cloning program super duper to clone a few copies to of the hdd http://www.amazon.com/gp/product/B00APP6694?psc=1&redirect=true&ref_=od_aui_detailpages00so you have 4 copies of the oem hdd and two mac minis. put one mac mini with the bitcoin core in a safe deposit box. keep the other mac mini in your home keep 2 hdd clones each of the bitcoin core in 2 different bank safe deposit boxes. So you have 4 clones and an oem hdd on one mac miniof the bitcoin core all in safety depost boxes along with a mac mini at home with no bitcoin core on it. When you need money go take a clone put it in the dock and use the in home mac mini to boot and use it to withdraw coins. |
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http://btc.blockr.io/chartsDec 18 2015 170 Dec 19 2015 150 Dec 20 2015 https://blockchain.info/blocks389363 (Main Chain) 2015-12-20 12:57:21 389268 (Main Chain) 2015-12-20 00:09:07 96 blocks today and should be 78 in 13 hours So this could be a 170 + day https://bitcoinwisdom.com/bitcoin/difficulty -------- (+16.91%)Bitcoin Difficulty: 93,448,670,796 Estimated Next Difficulty: 109,247,635,615 (+16.91%) Adjust time: After 1740 Blocks, About 11.6 days Hashrate(?): 705,106,195 GH/s Block Generation Time(?): 1 block: 9.6 minutes 3 blocks: 28.8 minutes 6 blocks: 57.5 minutes Updated: 8:5 (3.1 minutes ago) Price is still 455 at coinbase.
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Not sure making one dollar a day is worth it. Would I be better of just trying out the S3 or go for something like the Spondoolie SP20 Where I'd be making a little more.
okay here is the deal.. ---------------------------------------------------------------------------------------------------------------------------------------- sp20 = used only.---- needs a solid power supply like an evga 1300g2 avalon 4.1 = used only. ---- needs a rasp pi and a good power supply really quiet miner s-5 used only. --- needs a good psu say 800 watts or more really loud with out mods. -------------------------------------------------------------------------------------------------------------------------------------------------- s-3 used only ----- uses less power hash = 450=500 and watts = 350 /400 quiet good miner to learn how to mine ------------------------------------------------------------------------------------------------------------------------------------------------ new gear avalon 6 costly kind of quiet needs a quality psu and a rasp pi antminer s-7 costly loud needs a quality psu the first three are 300 to 500 usd the s-3 may be 125 usd the new gear is over 1000 usd. |
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Heating a home with natural gas will cost less then the electricity running miners. Gas is pretty cheap. I have natural gas, so I have no idea on what electric or oil would be. In 2.5 months it will be March, winter over in the Northeast US. If everyone spent all the money they spent on buying miners from Bitmain/China and upgrading electricity in the home (S7 time frames) they would of made a profit already. Two months ago BTC was -200. When did everyone start dumping money on the S7's? For BTC to survive we need to stop feeding China. I really laugh when I see users promoting certain non-china pools and then I see them on here buying S7's like donuts. Buying Chinese made mining hardware isn't the same as mining on one, but it does just feed the China machine that much more - in the grand scheme of things. The Bitcoin "industry" has already indicated this is a problem. Change has to start somewhere.
please point me to a new miner I can buy that is under 2k and not sold by china. |
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All in all. Do you think it's the best choice for the money??
The s-7 is way cheaper then the Avalon six is and does more hash. These are the only two you can buy with .25 to.32 watts a gh I have an S-7 and two Avalon sixes. All three overclock well. But if you were in my garage and asked me to tell you phil should I buy the s-7 from you or the avalon six from you. Based on money I would tell you buy the s-7. Based on sound I would tell you buy the avalon sixes. |
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That would be 425-450 TH/s for 24 hours or so correct?
duh my bad 425 to 450 th at each site for a total of 850 to 900 th here is a screen shot of what an order on nice hash would look like right now price is floating from .0051 to .0054 below would be if we get .0053 we would get 460th for around 24 ½ hours. I would point nicehash at ck's de / german server I would point westhash at ck's USA server we would have about 5/25 chance or 20% to hit a block and about a 5/625 chance or 4% chance to hit 2 blocks. The closer we pay to .0051 or .0052 the odds are fair. l If you put up .505 btc you get and there are 10 of us you get 1/10 of the block. the block would be 25 btc + transaction fees - ck's fee of .125 and minus a .125 tip to ck. so the worst would be a 2.45 btc payout for your .505 btc most likely you get 2.5 for the play since transaction fees are around .25 a block. Since I am getting my fee of 1% up front I would not take anything extra from the block or blocks we hit.  |
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Yeah, flat pricing was kind of a test. I liked the idea from a standpoint of fairness, but when I took a look at how much work I wasn't having to do because a couple resellers were handling so much of advertising and handholding, it really stopped being fair to them. And I don't know about y'all but my first interaction with CrazyGuy (something like November 2013) he stuck his neck out to give me a deal even better than what I was asking for, and he's been nothing but helpful ever since so I want to make sure guys like him are taken care of. Dude puts in a lot of time and effort for his customers.
yeah I have 13 sticks and will sell some but not until all the resellers are empty. Crazyguy has done well by me for a few years. So I pointed a few people at him. |
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I finally got my new 220v outlets installed to start up my S7s today. One of them I got on and configured no problem. The other S7 doesnt turn on at all, no lights, nothing. The power supply sound goes on. I am using the power supplies BITMAIN sells. What are the troubleshooting steps? What are the possibilities that could be wrong?
Whats should the frequency be set for the one that is running, its on the default of 700. Also about how long does it take to get up full speed?
Many Thanks!
- Dave
so lets go slow. did you turn the psu on and plug in hot pcie cables? or did you plug in all the pcie cables and then turn the psu on? if you plugged in all the pcie cables with the psu turned off then power the psu on that was correct. if you had the psu on and plugged in hot pcie cables that was bad and you may have killed the controller. Everything was plugged into prior to powering the S7. I wanted to let the other one run for bit before swapping the power supplies as a test. Is there a right way to power the other one down before swapping power supplies they (ANT MINER PSU) are switch free to save money. first choice ) if you have them in a pdu with a switch turn the pdu off. second choice ) if you have access to the circuit breaker that powers the psu turn that off. third choice) if no pdu and no circuit breaker access pull the psu power plug out. (last choice) I have powered pdu's if I did not I would use my panels circuit breaker. |
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Ok, so, the "30C" resistor is the 20k reference one. and one of the "123" resistor allows you to output 10.6v. divided by 15 chips in a string = 0.71v at the chips 1.1k resistor in place of the 1.3k will give 0.77v at the chips 1.3k resistor will give 0.65v at the chips 18k resistor in place of the 20k should also work for 0.64v at the chips 22k resistor in place of the 20k will give 0.77v at the chips Edit, I'm aging, took me 20 minutes to figure the over/undervolt. Does that mean i can simply slap some graphite on 30C (20k resistor) to undervolt the Antminer S7? That would be simple and interesting for the long run. yes, it should work, but since the resistor in on board, the value you can read will be different from 20k. So as for the good old antS1, you will need to do it by trials and errors until someone check the original value with a 20k resistor on board, and the target value with a 18k resistor (or 16k for 0.57v at the chips) Measured voltage at the output of the coil was 10.12v, so, it's consistent with my estimate of 1.3k resistor somewhere, except that I can't find it for now. I just modded 2 boards, one with 22k resistor, one with 16k resistor. Let's see how it works this should be very interesting I would love to see an s-7 running at .19 watts per gh For now the efficiency is more than sufficient, imo. Especially at the current profitability, but in a year, after the halving when these become equivalent to a S3, this will be a pretty nice bonus to keep them running a bit longer. yes to be able to drop from .27 to .19 will give them added life. |
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Swap PSUs on S7 that doesn't turn on with the working S7's PSU. If it still doesn't turn on, RMA time. Good luck with bitmain....
this is the next trouble shooting step. once you the op understand that you should not plug in hot pcie cables to the s-7. I am not saying you did this but more then 5 or 6 people have done this. and they killed the controllers. |
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I finally got my new 220v outlets installed to start up my S7s today. One of them I got on and configured no problem. The other S7 doesnt turn on at all, no lights, nothing. The power supply sound goes on. I am using the power supplies BITMAIN sells. What are the troubleshooting steps? What are the possibilities that could be wrong?
Whats should the frequency be set for the one that is running, its on the default of 700. Also about how long does it take to get up full speed?
Many Thanks!
- Dave
so lets go slow. did you turn the psu on and plug in hot pcie cables? or did you plug in all the pcie cables and then turn the psu on? if you plugged in all the pcie cables with the psu turned off then power the psu on that was correct. if you had the psu on and plugged in hot pcie cables that was bad and you may have killed the controller. |
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Ok, so, the "30C" resistor is the 20k reference one. and one of the "123" resistor allows you to output 10.6v. divided by 15 chips in a string = 0.71v at the chips 1.1k resistor in place of the 1.3k will give 0.77v at the chips 1.3k resistor will give 0.65v at the chips 18k resistor in place of the 20k should also work for 0.64v at the chips 22k resistor in place of the 20k will give 0.77v at the chips Edit, I'm aging, took me 20 minutes to figure the over/undervolt. Does that mean i can simply slap some graphite on 30C (20k resistor) to undervolt the Antminer S7? That would be simple and interesting for the long run. yes, it should work, but since the resistor in on board, the value you can read will be different from 20k. So as for the good old antS1, you will need to do it by trials and errors until someone check the original value with a 20k resistor on board, and the target value with a 18k resistor (or 16k for 0.57v at the chips) Measured voltage at the output of the coil was 10.12v, so, it's consistent with my estimate of 1.3k resistor somewhere, except that I can't find it for now. I just modded 2 boards, one with 22k resistor, one with 16k resistor. Let's see how it works this should be very interesting I would love to see an s-7 running at .19 watts per gh |
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i don't know why people are worried about diff increase all the time, the ratio between the profit and the diff will always be the same, so if many will join and it will be not-profitable, other will simply leave
it's not like everyone out there has free electricity, that would be scary, because they will dump until btc is zero in value, but even then there is the halving...
are you implying that difficulty and price have forever been synchronized even if not in immediate fashion, ergo increasing difficulty will yield increasing price? secondly, and possibly a crude iteration of what you said, I think that mining will essentially cease at the halving because only those with 16 or whatever nm architecture will even attempt to survive and technology won't meet demand for 4 or 8nm...at least nowhere near the halving time. As it largely now is, two or three companies will control everything after the halving and even they will be forced to 'pan' for their pay. If correct, will the diff after halving maintain the synchronization with price that I interpret you've suggested? I disagree. Quite a bit.... you can never remove the person that has cheap or close to zero cost power. What you can do is lower his hash to network hash percentage but if he has really cheap power you can not beat him. My friend leases a floor in a building and he then sublets he keeps 20% of the floor and pays 20% of the power bill. Normal rates are 10cents but he is paying 20% of that or 2 cents. he can give me 2 s-7's So I will mine s-7's for years there. A second benefit is his place is cold in the winter as he does not control heat he used to use 2 1500 watt heaters for 5 months a year. he won't be using them. So basically he has perfect mining setup for 2 s-7's no one can beat him he is cheaper then free power as 5 months a year he is gettng better then free power and the other 7 months he gets 2 cent power. Granted he is limited but he is not the only person with these conditions. You will have small mining as they are the only miners that can have 'free' power setups. How many of these are sold every year? Sooner or later this will come about that a company like Delonghi will cut a deal with a company link bitfury  |
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I did get very good results with the sound proofing here are results with the avalon 6's and the s-7  and sound meter readings on the den/home theater couch with garage door open--- 39.7db  about 46.8 a few feet from garage door  at the garage door 52.4  in the garage 59.7 pointed towards the intake spot  the outflow spot = 60.9  lastly right at the intake of the 2880 watt psu 71.8 notice sound proofing i will post the sound proofing technique later today.  |
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