Point is, just a small MOQ of 50 for SP50 is over 5 PH/s. Now for a sizeable batch for a data center, we're looking at 100 PH/s, which is very much capable of singlehandly raising the diff by double digits by itself for a round or two. (There's bunch few mW Bitcoin mines already)
We're looking at 80PH/s per mere mW, now and thats still pretty small when we have the main companies onlining/working on 10-30mW datacenter.
From there, simple math: a single 10mW datacenter filled with current/prototype gen miners would be more by itself than the current network.
After doing the math: 10,000,000 watts with 80% allowed usage [Especially, by insurance company for data center and NEC] should be operate 8,000,000 watts. We need to allow for a few more items, such as, exhaust fans, etc... We will deduct another 3% of that 8,000,000 watts for the other items used in the facility, which is 240,000 watts. This leaves 7,760,000 watts remaining for rigs. If all rigs were S7's batch 8 @ 1,293 watts each, this comes out to 6001 x S7's running 24/7 at allowed 80% demand of service. The insurance company may limit them to 75% but I'm doing figures at 80 percent. 6001 x S7's at an average hash of 4,667 GH/s each [Just shy of 4,700 GH/s] = 28,006,667 GH/s (28,006 TH/s OR 28.006 PH/s). This is far from the present network hash rate with 10 Megawatt facility. I wanted to throw this up in the air for others to see. You're welcome to do the figures for the SP50 if you like. I just think it's important to keep in mind that a data center can only have 75 to 80 percent demand on their service when doing the calculations. It will not quite be the full amount of wattage (power) the data center states. Especially, if they are insured. David Bah, the 1.2mW they listed was their consumption, not some rated number based on some regulation i havent heard of. But it does not really matter, as the math is for 1 mW consumed, if a 30mW only use 80% of 30mW then its going to use 24mW. Then i'm not sure what you're going to be doing with the 3% you're adding, fans, maybe? There's no way a facility is going to be using 240kW of fans, but what if they dont need fans in the first place? Anyways, the math for the SP50 was already done in the post you replied to, its about twice with S7, which sum up to 70-80PH/s. Albeit perhaps lower than actual 70PH/s if you start factoring in additional electric consumption overall. I can't say my numbers were conservative at all. If you do simple quick dirty math of 10000 (kW) / 16(kW) you got how many SP50 you fit per mW. Then you multiply that by 110TH/s bam about 70PH/s. Therefore a mine consuming 10mW would get close to 50% of the new total hashrate. Kinda crazy. |
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Trying to build an outdoor Shed for the summer bitcoin mining here in in HOT and HUMID Houston. Need advice and would love to see how other people are handling the heat and humidity running these equipment in an outdoor shed without AC and just force AIR. I have a space for a 10L x 10W x 7H Shed and would like to run about 5-7 Antminer S7 or Avalons. at up to 8KW+ of wattage, the normal formula calculate for AC is WATT x 3.14BTU for cooling and I think 24K BTU is just way too expensive to run for such a small setup for FAN Exhaust and FAN to blow the hot air out is what I'm been recommended. Would love to hear success stories and learn from everyone's experience of whether this is a good or bad idea.
Wow! Hope bitstamp rise on near to 1200 dollars/BTC.  Then even Mh/S is taking good profit on mining. I,m sorry to say that, few cents per year at 450dollars is still going to be few cents per year at 1200 dollars. If someone has a miner doing Mh/s, they should probably sell it to collectors and earn many, many time more back than they ever will with the stick miner. |
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Where are you pointing all that hash?
Usually between westhash and f2pool - whichever one is higher payout at the moment. I've written scripts to manage the miners and change pools according to highest payout. Sometimes I'll swing them at a PPLNS pool if I think it's due to have a good day, but mostly leave it auto to PPS pools. How often does westhash win? It seems like nice/westhash have been below bitcoin payments most of time unless I have missed something. It does, but you should probably also see the pool as a PPS pool. Its 4% at the moment, on top of that there is a 2% cut on sell and buy from nicehash. So it seem pretty on par with the 4-10% PPS fee from most pools. Sometimes Nicehash is at -1~2% vs 100% luck mining at that point its "better". Anyways thats how i threat Nicehash now that i solely have Sha miners. |
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There was a pretty big drop between S7 and S8 miners. It's possible those re sellers have stock of older higher priced miners, and EU honestly always seems high on miners with VAT/Import.
But yes most likely you get a S8 and pay import direct from bitmain without re seller, and it will be cheaper. Your cutting out a middle guy.
You mean batch 7 and batch 8?? Sorry about that yes mean different batches. Batch 7 was quite a bit higher then batch 8. But it also is faster (and quite possibly more efficient). So there are arguments I can see for a higher price on batch 7. But not to the extent you mentioned above. Thanks for the help my friend.. I would appreciate if someone from Eu who has done this could tell me if everything went smoothly. Maybe there are hidden taxes  After all i live in Greece!! You have to pay taxes even for pissing... The only tax I had to pay was VAT on delivery to DHL (or Fedex/UPS if you choose them) and 12€ flat fee for DHL who acted as a broker (dealt with customs, and supposedly paid upfront VAT for me to the customs). Remember, you pay VAT on item price with shipping added. If the carrier company needs something else than "Bitcoin miner" as a description to select a category for the taxes, you can answer they are "computer accessories". The latest price drop on batch 8 can easily explain a large part of the price difference you see with EU resellers. They bought S7 when they were over 1600€ plus shipping plus VAT. I was actually wondering about UPS vs DHL vs etc. I've had varied tax% when importing to Canada, sometime the miner will cost 6, 7 or 14% taxes. And i saw alleged report of people saying they had no tax to pay with DHL' albeit maybe not with something so pricy. I think i'll make sure that the official-ish value of the miner is under 1600CAD however, as that become labeled as a "High value import" and it become a pain, like it does in the US from what i understand. Maybe then its less tax, i don't know. |
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so i tore apart some old pc's took the heatsink/fan from the CPU and replaced the stock ones. Running 1 stick at 325Mhz and .75v. going to drop the voltage down 1-2v. if i had a couple of smaller heatsinks i would run them at 400Mhz. The fans are running off an old AT power supply. i left the switch attached so i can turn off the fans with a button push.
Interesting... can i/we get a screenshot of that? I'm kind of picturing a fat ass cpu heatsink ducttaped to the stick, with the stick upside down and a USB cord extender. Also if you put such a big heatsink on it, i don't think the chip could generate enough heat to warm up the heatsink much, so passive would work great, right? |
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I am interested buying apple products and the total that i am thinking to buy costs around ~4k USD
May i know where are you located so i can be there and pick up personally the things if you really have them.
Come one pal, I am now happy to work with escrow and you want to come to my house. You guys have no respect here at this forum. You know. Keep your savings. I have enough sales on other forums. From now on I will ignore people like larry12, who don't read, just write. I think the instructions I left in my previous post are clear. Even Skype refuse to send lol.
I have previously mentioned that only regular customers get my skypes, icq etc. Who are you to have my skype? A forum guy with a lot of useless posts? lol WILL YOU ACCEPT A TRUSTED FORUM ESCROW? [ ] Yes [ ] No I already said I WILL do escrow. How many times shall I repeat myself? TOPIC closed. PM for serious business only. No chatting.You know, if you continue telling other people that they aren't allowed to share information here, you'll just be labeled as a scammer, if you treat people left and right like shit, the whole forum is going to turn on you and threat you like shit. |
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Difficulty as of Today: Dec 18 2015 93,448,670,796 18.14% 668,931,642 GH/s
Difficulty Yesterday: Dec 06 2015 79,102,380,900 8.77% 566,236,898 GH/s
Current CKPool's stats:
{"hashrate1m": "59.8T", "hashrate5m": "56.7T", "hashrate1hr": "55T", "hashrate1d": "54.2T", "hashrate7d": "40T", "lastupdate": 1450542142, "workers": 21, "shares": 10548138317, "bestshare": 85347427519.182861, "bestever": 85347427519}
Fuck...
Well, my dear Finksy, no point in me starting a proper debate on Causality, but i have to agree here, that look very sucky. Lady fate is certainly playing a dirty trick on you. My wishes are with you, at least for a few minutes~ |
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coinbase are theifs. they closed my account after 2 withdrawls,
i emailed them everyday for 2 weeks and they ignored my emails.
they closed my account while a deposit was in progress, and tried to keep my money,
they are scammers and thiefs, stay away from coinbase
Did you open a Ticket here? https://support.coinbase.com/customer/portal/private/casesThey're legally established companies, listed and under enforced federal and international laws. Its more likely you did something fraud-y like use a stolen or fishy credit card than they stole your money. |
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Coinbase does not give you proper notice when they change your wallet address. Be very careful. when they do this, there is no warning. you could be in the middle of receiving bitcoins and when they change the address in the process, the sent coins can go to your old address after they give you a new address. the coins are lost forever when that happens.
they won't help you at all. I am actually suing them in small claims court in Washington State. they just obviously take the coins and tell you they are "lost"
don't use coinbase.
Bullshit alert, Bullshit alert, Bullshit alert.Above user has NO idea what he is talking about. The wallet actually give you a new bitcoin address after each transaction, for improved security as it act as a HD wallet. All your previous addresses are still your's. They can all be seen here; https://www.coinbase.com/addressesAre you sure about this? Coinbase changed an address on me when I was using them, but any bitcoins sent to that address still showed up in my wallet. I thought it was kind of the same thing as Mycelium where you have multiple addresses. I might be showcasing my ignorance here though.
OP is completely wrong and does not know what he is talking about, please ignore. You are actually right. |
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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. There are none, that's why I chose to buy Bitcoin instead. I purchased S5's when they came out, I guess I want to see this big experiment work out for our children's, children. If it ends up all profit driven then it will never be what it could. Just my opinion, I do not mean to offend anyone. technically, if you just buy btc and don't mine, you've got no vote on btc policies. That's how inequality gaps start. Bitcoin is controlled by all Bitcoin users. A quote from somewhere.  I can see how miners can vote individually (not in a pool, but solo); I don't see how users can vote on bitcoin matters. Please, produce evidence to the contrary. the only way i can see users voting is in a negative or positiove, by using/not using the Bitcoin system as it is. users have no vote on WHAT is the current system and on changes to it. This system is already in place, pool affix a note on their blocks to "vote" like in the Bitcoin XT/Bip100/101 flame war months this year. Miners point their hashrate to the pool or port that "vote" for whatever they want. |
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Hey, How im gonna get AntMiner S1 working example antpool. GroupFabric dosent support AntMiner/ASIC  Never heard of GroupFabric, sounds like a toy. You don't need it. S1 is a stand alone miner, all the info you need can be found at https://bitcointalk.org/index.php?topic=355387Its not a miner, it present itself as software miner to make bitcoin with your computer and give an example in MH/s. I never heard of it, but the website is well maintained, seem like a fair bit of money was thrown at this. Whats the point, steal people's wallets? Hey, How im gonna get AntMiner S1 working example antpool. GroupFabric dosent support AntMiner/ASIC First, you dont go to dirty China pools, you pick a nice pool, like Kano.is, you go to your miner's GUI/Webinterface, put the pool/working in ex stratum+tcp://stratum.kano.is:3333 yourusername.yourworkername password x. And you're done. |
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Hey, How im gonna get AntMiner S1 working example antpool. GroupFabric dosent support AntMiner/ASIC Never heard of GroupFabric, sounds like a toy. You don't need it. S1 is a stand alone miner, all the info you need can be found at https://bitcointalk.org/index.php?topic=355387Its not a miner, it present itself as software miner to make bitcoin with your computer and give an example in MH/s. I never heard of it, but the website is well maintained, seem like a fair bit of money was thrown at this. Whats the point, steal people's wallets? |
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*snip was really long quote
Before btc was 200 usd I cant find miners in china ....now when btc high again then can find too much .... I think seller will hold selling s7 when btc down
Where were you looking at for miners? In china even during 200 day's you should have found a TON of miners. A decent amount of the companies are there.... so it is not hard. What site or where were you looking? I've never heard of someone in China having trouble finding miners. Sure www.taobao.com This can trust Not have big hash miners . The best here is s7 I want similar yesminer or miner labs very high hash hope you did not buy a 'yesminer' that is a scam.........see the threads on it on www.litecointalk.orgno release to 3rd party testers.....(for example doggie on bitcointalk.org and others) shady video....etc etc anyway be warned probably sfards (if you can find one) avalon bitmain are the only ones shipping now of any real note trustworthy wise as to ROI wise doubtful on any! This avalon ..S7 now not profitable... you see difficulty is very high now .... and continue to be more and more high .... I think three month later can't pay avalon electricity .... Yesminer they are scam .... ok What about minerslab ? Also scam ? I never heard of it and no one ever made a post about receiving one in the hardware section, so probably. The price look less scammy, but the specs looks totally scammy. Its all rendered images and different products use the same picture. The efficiency is to be doubted. I'm pretty sure it exist right now, but not in public/production stage right now. (under 0.1J/W) I'd stay away. Right now there's only the Avalon6 and the S7. And if a couple of diff bump down the road, will make you unable to ROI the Avalon, then you're definitively mining at an electricity rate that you should not be mining on. |
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Done on my part. Just missing fire27 to do it as well, unless a mod as doing such things in their job description, it might be a more streamlined recourse. But i guess you never know. Anyways, i guess that according to the old rule, now that Sidehack got an imposter scammer, he/his thread is now universally accepted as a real seller/sale thread. ;P |
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!!! WARNING: This user is a newbie. If you are expecting a message from a more veteran member, then this is an imposter !!!
This user is a Hero Member. If you are expecting a message from this member then it is genuine !!!
Hi fire27,
The minimum order quantity for a new batch would 50 units.
Reseller price including shipping for the lot = 2.27BTC
Discounts available for larger orders :
100 units : 4.2BTC
250 units : 10BTC
If you wish to place an order and want to get them within 5 working days (before Christmas) please use the following payment address :
17AiWwYYSCAMSCAMSCAMSCAMSCAMT2kYuHV
After payment pm me the transaction I.D and full shipping info.
Report To Admin
Hero Member
love scammers its why i never signed up here for ages I dont see why this would deter you from signing up, if you spend 1 min on the internet, you realize how horrible people are at scamming, and that there's millions of them around. Its not hard to grasp, would you deal In real Life with some guy that hide who he is, that you never met, that can't say 2 English word in a row without making a mistake? "Yeshh i r legit, plx gib monies." Please thats so obvious. Its not hard not to get scammed IRL, its just as easy online. |
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Anyone look at the efficiencies of the later batches?
I was talking to my buddy who has a bunch of Batch 6, 4.05TH ones running at 4.4-4.5TH but only using 1150-1190Watts at the wall with EVGA 1300G2's.
He told me a few were even clocked at 4.2TH when he received it from factory at 625MH.
So that works out to be more efficient than all the other batches, no? I'm talking about real world @ wall usage , not the BS they usually advertise.
Maybe Batch 6's are the ones to get and Batch 7-8 is to be avoided like the plague as a LOT of them are having issues.
Batch 1 uses 1210 W to get 4.86 TH/s = Actual Efficiency: 0.2490 J/GH Batch 2 uses 1160 W to get 4.66 TH/s = Actual Efficiency: 0.2489 J/GH Batch 3 uses 1210 W to get 4.86 TH/s = Actual Efficiency: 0.2490 J/GH Batch 4 uses 1160 W to get 4.66 TH/s = Actual Efficiency: 0.2489 J/GH Batch 5 uses 1210 W to get 4.86 TH/s = Actual Efficiency: 0.2490 J/GH Batch 6 uses 1042 W to get 4.05 TH/s = Actual Efficiency: 0.2572 J/GH Batch 7 uses 1278 W to get 5.06 TH/s = Actual Efficiency: 0.2573 J/GH Batch 8 uses 1293 W to get 4.73 TH/s = Actual Efficiency: 0.2734 J/GH It is all about efficiency 24 hours a day! Looks to me that the Efficiency is going down. Is that actual measured watt usage or what is claimed by Bitmain. My B1 used 1280-1290watts at full blast (Just around 4.85TH. Hmm, that's not that good. My B1 is at 625 with 1230-1235 watts running 5017GH/s 1235/5017 = 0.24616 Very Nice! I think it's nice to but the HW is at 0,01 So would that be a problem on the long run? As i expect to only run it for max a year. I think it is all a shot in the dark. We have no proof of anyone actually running these systems for a year, but electronics (in general) want to run cool and without errors. We as the owners of miners want to run them as profitable as possible in the form of the highest hasharate. With that being said, the general rule that I have seen on this is that HW should be as low as possible: 0.03 or less. I would personally "Save&Apply" to get less than this and also adjust the Frequency to get better than this. At this efficiency you'd be fine with 1% HW or any HW%. HW% doesnt do anything per se, its just an indication of how many share its wasting, it does not matter as in, it does not cause damage to the unit, it doesnt lose 1 HP everytime it makes an error. |
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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. |
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What is considered to be an "acceptable" HW error rate?
Whatever floats your boat. I get one in 10 000, because i more or less did not wanted to raise the voltage by even a tiny bit for that. This stick can do 0HW~ easily, if you see frequent HW, then raising the voltage would fix it, but its not necessarily worthwhile to raise voltage over negligible HW rate, depending on how you look at it. Thanks for the response; I am getting about 1.8% HW Error Rate at the moment with everything running at .71-.72V. I am going to let them run through the night (3 brand new sticks tonight) and see how it looks tomorrow morning. If it still looks like this I will up the voltage to see if I can knock down that rate to closer to .1% like I had with a single stick. Thanks again. That's very high, even 0.1% is too high. Just looking at my cgminer screen I've had 1 HW error since last re-start in 20 hours with 3 sticks @ 300MHz (16GH / stick). That's with 652k accepted shares and 60 rejected. Yes, i meant i have about 0.0472 % which i consider "a bit high" but near negligible as its not really affecting my hashrate, but it could still be under 0.0001%. Near 2% is very high and you're losing a "significant portion of your hashrate" and it would not take much voltage raise to bring it down back to 0%~ |
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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. |
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