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Congrats to wttbs(4) and SBC3(1) for winning the DIY2 auction.
I will send you both a PM soon.
Another special thank you to TheRealSteve, cheers!
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Congrats to wttbs(4) and simoncc(1) for winning the DIY1 auction.
I will send you both a PM soon.
A special thank you to TheRealSteve, cheers!
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I am a bit surprised by the difference between the bids for the DIY1 (0.3) and DIY2 (0.42).
The DIY2(60GH/s) has double the capacity of the DIY1(30GH/s)!
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I am a bit surprised by the difference between the bids for the DIY1 (0.3) and DIY2 (0.42).
The DIY2(60GH/s) has double the capacity of the DIY1(30GH/s)!
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For those unfamiliar with CET: Current time in AmsterdamThere is now 1 hour left on this auction (plus five minutes when a new bid comes in before the (five minutes extended) deadline.) Bid history: And thanks for this one too! |
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For those unfamiliar with CET: Current time in AmsterdamThere is now 1 hour left on this auction (plus five minutes when a new bid comes in before the (five minutes extended) deadline.) Bid history: ... Maximum bid: BTC0.3 (19% of non-EU price, 22% of EU+VAT price, 26% of EU business price based on bitcoinaverage.com and official sale prices) Thanks! |
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THREE hours to go plus five minutes when a new bid comes in before the (five minutes extended) deadline.
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THREE hours to go plus five minutes when a new bid comes in before the (five minutes extended) deadline.
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Here is my amateur overvolting attempt of the OneStringMiner with a laboratory power supply that can't do more than 2.0A  Volt Amps hwerrors hash rate temp fanspeed
10V 1.0A Y ~19GH/s 32.9 low
10.5V 1.23A Y ~19.4GH/s 35.8 low
10.75V 1.32A now and then 22-24GH/s 36.6 low
11V 1.38A N 20-25GH/s 37.3 low
11.5V 1.6A N 25-26GH/s 39.2 low
11.75 1.71A N 28-29GH/s 41.2 low
12V 2.01A N 30GH/s 44.5 low
12V 2.01A N 30GH/s 44.5 low
12V 1.98A N 30GH/s 33.0 medium
12V 2.03A N 30GH/s 32.1 high
12.25V 1.98A N 33.2GH/s 41.7 low
12.37V 2.04A N 35.1GH/s 44.9 low
12.5V 2.01A N 32.2GH/s 69.9 off
The fan is connected to the OneStringMiner board, so the current used by the fan(fan low, board idle, current from 0.2A-0.32A) is included in the Amperage values in the table above(Except the last one, I wanted to push the PSU to the limit, which was 12.5V @ 2A). I just noted what cgminer and the power supply were showing a few minutes after restarting cgminer with every new voltage setting. It's clear that I need a more powerful adjustable power supply. I will get one and do the test again, trying to be a bit more precise with my testing methodology. And it's amazing that most of the chips(only chip 14 was reporting hwerrors) can hash ~19GH/s at 10V, 1.0A, that's 1.9GH/s per Watt if I am not mistaken ! I will let it run for a while and see if the hashrate stabilizes at ~10V, 1.0A. Update: It doesn't stabilise at 10V, the hashrate keeps on going up and down 15-19GH/s. Amps go pretty low now and then, I have seen as low as 0.8A. I think it's clear that not all chips are hashing anymore at this voltage. Back to 12V... |
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Very stable running of the 2xDIY1 and 2xDIY2. The usual variance can been seen.  |
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where will these be shipping from?
The Netherlands Correct, thanks. i was just in the netherlends 3 weeks ago in amsterdam i wish you had held this auction a while ago i could have picked them up lol By that time we didn't had stock yet. Come back again! |
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Ah, so you've already caused to be populated all the boards you had.
Wait, so if someone sent in their chips, you'd send them an off-the-shelf board already made with off-the-shelf chips? Or cause one to be made and populated with their chips? Because if that's the case then it would not take longer to make a board with their chips than it would take to make a board with no chips at all.
Also sorry if I'm frustrating you. This design is flippin' cool and I really like it, just kinda want to understand what's possible. Someone asked me the other day what he might do with a couple dozen BF chips that had not yet been put to use and I was most interested in this design. If I can do what I want with a DPS-800GBA power supply board, it'd work with this miner to make overclocking as easy as turning a knob.
Yes, all boards we have are populated. We offer a complete board with a discounted price when the buyer sends in Bitfury chips. It's a courtesy service that we offer, which we can do for a few customers, but not many. Or else we'll end up with thousands of chips that first need to be put in a usable container before we can ask our supplier to make more boards for us. I have been looking into server power supplies too. This is definitely one of the ways to push the OneStringMiner board to higher performance at the cost of more energy being used(and void your warranty). Another way is a laboratory power supply, but those are expensive and most of them are only a few Amps. I hope to be able to answer a previously asked question about voltage versus performance. Intron already gave a good indication (~39GH/s) of the capacity of the OSM boards in his message. |
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So you don't trust people to stick on their own?
Of course I do, it's just quicker this way. Complete boards in stock, empty boards have to be produced and then all components needs to be added without the Bitfury chips. And then the buyer needs to add the Bitfury chips. More fun, I agree, but takes a lot longer. |
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So how difficult would it be to get some boards that didn't have BF chips already installed?
I already got a similar question, the best option I can offer is you send the chips to us and we'll send you complete boards. Obviously you'll get a lower price, you can deduct us$75 per board for each 15 chips you send to us. |
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^my understanding was that below my bid there were 4 bids at 0.28. I made it simple and put one bid at 0.28 (makes maximum 5 at that price) then bid 2@0.29. This means 3 more can be bid on at 0.29, and then bids must go higher. (if im not mistaken) Im willing to bid these towards the going rate of an antminer, basically balancing the benefit of power consumption against the drawback of running a USB host and having to run everything via a c/bfgminer instance. I just feel like the bidding will stagnate out well before friday night at the current speed A cheap Raspberry Pi can run up to 20 boards, so the drawback of a USB host is not big. |
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2@0.291@0.28(that leaves 3@0.29 or higher) Hope this auction can end sooner than friday night - the pricing is already at a very fair value IMO FYI, 0.29BTC * us$667 = us$193. Have a look at MegaBig site to see the price for 30 chips. The normal price for a single DIY2 is us$731. So to say that it is at a fair price is a bit odd. I started this auction to get publicity, a loss is calculated in, but for this auction only. The auction is set to end at Friday noon CET, not midnight. |
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Sorry if I missed something that was posted early on. How "DIY" is the DIY board? Is it possible to get basically just the board and sack of components? Or a basic board population but not the BF chips installed, for folks that already have 'em laying around?
Also just as a verification. I haven't worked with BF hardware myself yet, but everywhere I see people tieing them into RPi; is it possible to work this stuff from an actual real computer?
People tie bitfury into rpi or beaglebone black because they are low wattage general purpose PCs. This should run off a regular desktop. On windows you woul need the BiFury device driver .inf file to associate the proper drivers if you plan on using bfgminer. Cgminer should auto detect it I agree DIY is a bit of a misnomer Ben, since the board comes fully populated and ready to go. I suppose it's DIY compared to the elite (which is ready to go, just add pool creds) My two satoshis. Your answer is worth every satoshi you claim  It's DIY as in build your own case, assemble it, hook it up, install the needed software and get it running. |
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This is my first forum auction I've participated in and I guess I should have asked up front, but if I've bid on 5 of the miners at a certain price but someone outbids me for 3 of them do I get the remaining 2 at my price or is my bid for 5 or nothing? I asked Ben about these cases, and in this case - you would get the remaining 2 at your price (assuming no further bids). There's some other pitfalls, but Ben will deal with them in the rare case they should occur  Thanks for answering and I will solve any issue that might arise to everybody's satisfaction. (I have more than five boards in stock). Ohh, ok cool. Love the efficiency. Would you mind if I sent you a PM? I'd like to set up a standing order if these work out for me. PMs are always welcome. |
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This is my first forum auction I've participated in and I guess I should have asked up front, but if I've bid on 5 of the miners at a certain price but someone outbids me for 3 of them do I get the remaining 2 at my price or is my bid for 5 or nothing? I asked Ben about these cases, and in this case - you would get the remaining 2 at your price (assuming no further bids). There's some other pitfalls, but Ben will deal with them in the rare case they should occur Thanks for answering and I will solve any issue that might arise to everybody's satisfaction. (I have more than five boards in stock). |
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where will these be shipping from?
The Netherlands Correct, thanks. |
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