Yes i know, i mined the coins with S1's to buy the S2 on 16-03 for the second batch. The S1's where great but this  I hope it's something i can solder back, that won't be any problem for me. Even if it's a bga or something like that. On the controller board are 5 led's, only one of them is green. it's the led with R41D5 marking next to it. Any thoughts? look up support for the beaglebone black since that is the control module. its possible you need to swap in a new controller and/or sd card (probably <$50) The real question is: why should anyone have to swap out anything for an expensive piece of equipment that was obviously poorly tested, and used a shitty microSD card in the first place. Also stop hiring monkies to throw your packafges onto your planes....do they think there are pilows inside an 18kg box? what a stupid system, at least work out the delivery part so all the units dont come to people in pieces. Fragile, or this side up, doesnt mean shit to these carriers, even if they could read them or understaing which way an up arrow is suppposed to go. Put it in chinese then, but I dont think it will make a difference. seems like whoever he is using to ship these units is the cheapest carrier he could find as seen in one of theose animated gifs i saw a while back where the monkey is tossing these large heavy boxes carelessly on to the conveyor belt with half of them falling off. Good work Bitmain, way to kill your entire business operations in one clean sweep. Maybe you shoulod lower the price again next week and try and get some more suckers to give you money. why so negative? I understand lots of machines arrived damaged - and i can understand why, particularly if they were shipped on thier sides rather than rightside-up or even upside-down. Hopefully bitmain sees this and is working on it. ever new generation of equipment will have its issues. The first few S1 batches had various issues and non-ideal traits such as the lack of pci-e connectors. UPS is a reasonable shipping company, not much better or worse than purolator/dhl/fedex/etc. They deliver quickly and at fairly low cost - The S2 just needs an extra layer of protection to keep the boards in place if shipped on its side (such as a cross-bar made of metal instead of foam). My unit arrived just fine, and is right now hashing at 1100GH |
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You are going to harass the friends of someone who *might have* scammed you? I think what will happen: "your friend conned me out of money" "yeah, how?" "bitcoin" "lollllz" *blocked* |
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You seem to think lowering voltage can guarantee higher efficiency. Show me some proof. Has it ever occurred to you that chip manufacturers may have already set voltage as low as possible without diminishing returns?
You repeat over and over that it has to work because "physics" and yet in reality there is not a single person with an asic who acheived less than 0.5w/gh at the chip level.
Here's some proof, oh yeah and BTW our chip on 55nm achieved that "less than 0.5W/Ghash" back in june 2013  Well that's about as solid proof as it gets. Thanks for proving me wrong without theoretical evidence. 0.38w/gh is incredibly impressive but I want to know is it still cost effective while only 1gh per chip? And puppet this in no way validates your claims that any and all asic manufacturers can increase efficiency beyond what was advertised. Bitfury is a rare exception and even then 0.38w/gh was advertised I was just unaware of it. Please note that it seems that 96 Mhz is close to _BEST_ solution This leads me to beleive that even bitfury is towards the deep end of the shmoo plot. How do we know other manufacturers are not? And even if all manufacturers can acheive below 0.38w/gh can they do it cost effectively? look at bitmain - the S1 is ~2w/GH which the S2 is 1w/GH, by running each chip at about 60% the power. Presumably less than 1w/GH could be done, but would require many more chips, which is cost-prohibitive for the time being |
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Yes i know, i mined the coins with S1's to buy the S2 on 16-03 for the second batch. The S1's where great but this I hope it's something i can solder back, that won't be any problem for me. Even if it's a bga or something like that. On the controller board are 5 led's, only one of them is green. it's the led with R41D5 marking next to it. Any thoughts? look up support for the beaglebone black since that is the control module. its possible you need to swap in a new controller and/or sd card (probably <$50) |
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^mine arrived the exact same with the foam strips and good shape. also had 2 or 3 screws that were free-spinning that i pried out with a knife
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also, currently trying out 6206 (215.625MHz) on a U1, and expect to implement it on my S2 after a few more minutes of confirmation. 212.5MHz gave me 0.75% hw errors while 218.75MHz was about 2.02%.
hopefully 215.625MHz will be around 1-1.2% error rate and thus about the highest stable speed for an antminer S2 (batch 2, external DPS-2000 PSU)
Have you set the U1 to the same voltage as on the S2s? no i haven't - my main use of the U1 is to make sure the code isnt wrong and causing too high, low, or impossible a frequency and thus hardware failure. 6206 worked fine on the U1 (1.730GH average) and is now implemented on the S2 problem free (1098GH, 1.136% hw errors) after 1.5 hours of operation. Presumably there's a ~1180W power draw to go with it, but my 208V PDU is not metered. Temps range from 48-55 degrees still waiting on someone to identify which resistor on the S2 would allow pencil-modding to raise the voltage. The chips and arrangements are quite similar to the S1, but not identical enough that i can firmly state 'it is resister Rxx'. I would love to be able to slightly bump up the voltage on some of the hashing boards to see the effects on hashrate, but I assume if temps get much higher than 55C (board 1) the error rate might really start to jump up. I still think that these units could handle 1280GH/1500W if the resistors were just set just a bit differently for a few extra millivolts to reduce the amperage and allow a little further tuning into the 225-250MHz range (frequency 0981 would give 250MHz, or about 1280GH) |
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24 port gig switch is over kill the cube only have a 10base t Ethernet port not 100 or 1 gig u could get a 8 port 100 megs switch cheaper im sure but any switch will work I had 2 cubes on a switch dlink.
go on craigslist or a local eledtronics recycler - you can probably get a 24 or 48-port network switch for <$20 I got mine for $15 - 48 ports at 100meg, with 2 trunk ports that are 1gig connections for interlinking multiple switches to the router. dead-easy to use, its a simple plug/play router basically. (my understanding is that switch is NOT a router, so unless your modem is a modem+router, a router is still needed to handle the divvying up of ip addresses and DNS |
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I bought a set of 3 boards and on one of them the on\off switch is seized and I cant switch it on. Is there a way that I can bypass this switch?
short the pins/solder points for it? |
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Ive got 5 Ants I have had for a while running at 1 TH/s.
They are rock solid machines.
3 run off of Corsair RM550s, not much to spare there.
2 run off of Corsair RM650s.
Hey, I can squeeze 1 more ant in running 1 of the boards off each of the RM650s!
At BTC0.50 with one of my coupons and the power already available I could not resist.
All I need is 2 PCIe power cables (I have cat 5) and I'm good to go.
Hoping for a good Ant, have not had any problems before, but it seems the may be some new issues, I'll know in a few days.
its not the best solution, but you could run a few 14 or 16AWG wires from the screw terminals of the existing units to the screw terminals of the new unit. This would share the load to the PSU, but also force the PCI cables to handle more power than they do currently ie: you have 1 unit running on a 650W psu. run a pair (1 black, 1 yellow) of 14/16awg wires from each of its blades to a single blade on the new unit. (ie: 4 wires into the screw terminals of a new blade). This would add about ~90W of load to each blade's PCI cables on the first unit which may be pushing its limits but not excessively. repeat for the second blade using the other unit and other RM650 |
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newly added: 6206 = 215.625MHz for some reason my system was a bit unstable at 218.75MHz. it had ~2.02% hw errors, but something was causing either the miner or the psu to switch off and need a reboot. (the PSU is a modified DPS2000 so it should be plenty powerful, but the cooling fan i stuck to it might not have been sufficient) 212.5MHz gives ~0.75% errors, so hopefully the middle-step at 215.6 will be around 1.1% errors and more stable. Been 30 years since I did this math. I am playing around with a lot of s-1's does anyone have a link to a bigger more expanded chart. Say from freq 175 to freq 425. Freq 175 I am going to post a thread in support. Asking for people to fill in the gaps [/quote] not much reason for such a range, since most of it is a mixture of hand calculations and a logic puzzle (last digit as '2' means twice half the frequancy as if using '1' and 4x as using '0') the ranges to focus on are: S1: 300-400MHz S2: 196-225MHz if you want a frequency outside that range you basically need to do the calculation with the end-frequency in mind. If you have a U1 it makes an excellent test-bench since it runs at a very similar voltage and frequency range as the S2. |
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something is up today - i have been unable to properly load the stats page all morning, now its a 502
atop of that, all my miners went offline briefly nd just started mining normally again ~2minutes ago. not sure if this was a pool issue or a network blip on my end though, since my teamviewer link dropped off briefly as well (but seemingly after the miners stopped hashing)
I like eligius a lot as a pool, but whatever is causing these DDOS attacks needs to be dealt with properly rather that just fail-safeing the stats page every other day
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Weekly Update 4/23/2014.
Datacenter:
We are up to 64.34 Th/s and expect by the end of the month to be around ~170 TH/s. Everything is in place to expand our hash rate to this level.
VMC:
We have announced our Gold Rush boards and have had a very positive response. We are now training and switching our help to do more shipping than build of the mine.
We have 100 Gold Rush boards in stock for immediate shipping. We have worked out the logistics for this.
MSD:
Nothing new at this time.
Shares:
Nothing new at this time.
anything newer to report? The end of the month is tomorrow, and the hashrate is still hovering just short of 70TH. There is still no financial report that was supposed to be released by/on the 1st of april (april fools joke maybe?) |
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Hello
Have got this S2 CE certificate,and what is very significant,CE mark on the case (in visible place) ?
I don't think they do. no markings on the case, and nothing on the control board or hashing boards. Its unlikely anything is printed on the backplane either |
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...stuff
Please don't ask for tips in my thread, even I don't have a tip address. fixed - sorry to tread on toes! also, currently trying out 6206 (215.625MHz) on a U1, and expect to implement it on my S2 after a few more minutes of confirmation. 212.5MHz gave me 0.75% hw errors while 218.75MHz was about 2.02%. hopefully 215.625MHz will be around 1-1.2% error rate and thus about the highest stable speed for an antminer S2 (batch 2, external DPS-2000 PSU) |
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 It comes from the Antminer U1 overclock manual. But I think this should be compatible to Antminer S1, too. Let's see the example of why 0780 and 4F81 are 400MHz. HEX BINARY 15/BS M N OD 0780 0000 0111 1000 0000 00 00 0111 1 = 15 000 00 = 0 00 = 0 which NO=1 4F81 0100 1111 1000 0001 01 00 1111 1 = 31 000 00 = 0 01 = 1 which NO=2 5F82 0101 1111 1000 0010 01 01 1111 1 = 63 000 00 = 0 10 = 2 which NO=4 Fout = 25 * (M+1) / ((N+1)*NO) Fout(0780) = 25 * (15+1) / (1*1) = (25*16)/1 = 400 MHz Fout(4F81) = 25 * (31+1) / (1*2) = (25*32)/2 = 400 MHz Fout(5F82) = 25 * (63+1) / (1*4) = (25*64)/4 = 400 MHz Actually, 5F82 is also 400 MHz, but due to the instruction below 500 <= Fout * NO <=1000 Fout(5F82) = 400MHz, therefore, Fout*4 = 1600 and over 1000. So I think I should not config 5F82 for 400MHz, according to this manual. I don't say that it does not work (I tried it before understanding the HEX, it worked) but you have also another 2 freq_values which give you the same MHz and get along with the instruction in the manual. A little bit too long, anyway, I hope you enjoy my lecture, lol. Any questions are welcome. If this is useful, any donations/tips are welcome => 12QAQhbmTzV7sJ9sg8xT96JAneE4S89sS6  I finally got around to doing the calculations myself for the antminer S2 - and so far it looks good (testbench was a U1, which on success menat the code could be applied to the S2 safely) 5002 = 206.25MHz 5082 = 212.50MHz 6206 = 215.625MHz 5102 = 218.75MHz all three meet the requirements stipulated by the above rules and pattern. 5082 is currently giving a hashrate of 1095GH and error rate of about 0.95% after 15minutes. (212.5 is 8.5% higher than the stock speed) tips accepted at 1LQZnkJuUbdeVdxGjR27zkNJWSW4FSLBhhnewly added: 6206 = 215.625MHz for some reason my system was a bit unstable at 218.75MHz. it had ~2.02% hw errors, but something was causing either the miner or the psu to switch off and need a reboot. (the PSU is a modified DPS2000 so it should be plenty powerful, but the cooling fan i stuck to it might not have been sufficient) 212.5MHz gives ~0.75% errors, so hopefully the middle-step at 215.6 will be around 1.1% errors and more stable. |
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I wonder if this is a clearance sale? If so, I wonder if they will simply package the units that they use in their mining center, hence the time delay until May 4.
It is very tempting, I admit. I am scheduled to get two more S1 today-will see how the units look and hash and then proceed. Bitmain is approaching $1/GH (currently $1.17/GH/s for S1 at 375mhz (192GH/s).
I paid 220 today .5 btc was 440 thus 220. that is $1.10 a hash at 200gh . I will run 6 at 200gh about 400watts each for about 1 month. after that down clock and under volt to 140gh about 200 watts each. ^thats more-or-less my plan too maybe 2 months of full speed unless the summertime deems otherwise |
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Some people who has lots of $400 coupons can help other miners out. You buy S2 with $400 and buyer sends money to escrow. Miner gets delivered and escrow is released. Lets say buyer pays you $200 on top and still saves $200 from full price I am willing to do this for someone - would be willing to sell the coupon use for $100 each ($300 savings to someone who didnt have a previous bitmain account/purchase!) |
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i think it goes for s1 and for s2.....
why no one told me that they have that?
I just saw the offer this morning, if this means $400 off coupon for each of my past S1/S2 purchases.. Oh man I need to call the sales creature get some cabinets put together! same. I just got an absolute buttload of the $400 coupons in my account - but btc prices need to go above $500 before the S2 is appealing as an alternative to the S1. (either that, or drop the price another ~$300) |
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I would advise against ordering these.
They very rarely achieve 1,6Th and the power efficiency is at best 1,25W/GH
the nearest competition is the antminer. S1: 180GH/360W 0.55BTC S2: 1TH/1kW ~5.7BTC cointerra: 1.6TH/2.1kW ~8BTC |
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Terraminers at $3799 now!https://cointerra.com/product/terraminer-iv-1-6-ths-bitcoin-miner/STIN, Texas – 04/28/2014 CoinTerra, the market leader in ASIC Bitcoin mining solutions today announced that it has adopted a variable pricing model for retail sales of their TerraMiner IV Bitcoin mining hardware. Having delivered the April and May/June batches significantly ahead of schedule, CoinTerra has decided to move to a model of daily pricing for its from-stock sales in order to reflect the ever-changing variables which go to make up the Bitcoin ecosystem. “As the leading high-performance Bitcoin mining hardware manufacturer shipping from stock, we can now offer a pricing model that allows Bitcoin miners to make purchasing decisions based on current factors. This makes CoinTerra’s spot pricing exceptionally attractive to members of the Bitcoin mining community wishing to buy mining hardware for immediate delivery and deployment.” said Ravi Iyengar, CEO – CoinTerra, Inc. Every 24 hours market analysts at CoinTerra will determine the following day’s spot price, and the first price point offered on Monday April 28th is $3,799 per TerraMiner IV with a volume discount of $200 per unit when purchasing 10 or more. Depending on the market, pricing may increase or decrease, or remain unchanged. Additionally, CoinTerra has announced that it has begun to offer the TerraMiner’s GoldStrike I ASIC for sale to third-parties to integrate into their own system designs, with a minimum order of 500 ASICs. To order a TerraMiner IV from stock for immediate shipping visit: https://cointerra.com/shop still expensive. espescially at ~1.4w/GH. Try pricing it around $3000 if you want to compete with the 1TH/1kW antminer at $2600 or the 180GH/360W antminer at 0.55BTC |
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