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Bitfury flies under the radar a bit. the bitfury orders turned quite a tasty profit, or so I've heard... I also haven't been following them, but I wish I would have been.
*edit* Oh yeah, any advice I would give, is try to find a situation where you will have access to cheap electricity, lots of it. If you have that, you will be able to buy up the early ASIC's for pennies on the dollar. (minus shipping, perhaps)
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Small Preview of ~60 chilis look like on a rack.  That. Is. AWESOME! lol, I see you have some 750W PSU's dangling there, how many chilis do you run off each one? again, I'm being serious, I really love the "art ghetto" design. I assume it's highly functional?  |
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I know he's got a bad rap, but Yifu is selling. http://avalon-asics.com/I ordered a board on Tuesday and it arrived by Friday. It will probably not break even, but I wanted to fill out my batch 2 Avalon, so meh... |
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Thanks for the replies, I think I will just leave the molex disconnected. I'm pretty sure both the little singles and MrTeal's board are using the USB for data only.
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When dealing with small operation like this, lower your expectation and expect some delay. It's prob couple of guys doing testing, packing and shipping as fast as they can.
lol. thank you for this, I actually did laugh out loud, made my day really. I'm pretty sure it's exactly a "couple of guys" working on this project, and I'm not lowering my expectation at all. The way this project has been run is miles ahead of the "big guys"  I put up a small article on bcoinnews.com about the Chili
Oh and I got mine because I live less than 5 miles from Chipgeek
If only all bitcoin hardware was this nice
Agreed. I am quite impressed with the quality of the design, and the professionalism thus far. I will have to wait till I get mine to comment on the build quality and reliability, performance, and all that, but all signs are looking good. |
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Avalon is selling a 60 GH/s miner for 6 BTC right now. They recently held an auction and some people were able to get this unit for between 2.21-3 BTC (which is actually a pretty good deal, as long as they ship promptly)
The single is much better from an efficiency standpoint - Avalon states that these devices draw 600W from the wall, I'm sure the single draws less than this.
Personally I'm not currently interested in anything that costs more than 10 dollars per GH/s - but that's just me.
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I recently bought this as a hub for 4 little singles and 4 of MrTeal's chili boards. It has a molex connector and 2 usb connectors that go to the extra usb connections on your motherboard. When I plug in the molex and plug in the power supply (have not yet hit the power on the motherboard) the CPU fan starts to spin... Yes, the cpu fan is spinning even when the computer is turned off... Is this dangerous? Or is this not a big deal and it's just the extra power from the molex feeding back through the USB connectors on the motherboard and all will be fine once there are devices connected on the hub? Should I try to simply run it without the molex? I'm really not sure that little singles need a powered hub? I would really appreciate your help. Thank you. |
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Thought I'd drop here my bitcoin experience thus far as that is the topic of the thread. So far, I have "lost" nothing. I've made some mistakes and could have made much more, but hindsight is a bitch. I started mining on my 5850 that I already had when I first heard about bitcoin (just before the big climb to 30 and the crash thereafter) -been re-investing profits from that card into new hardware ever since. started small, first 2 6950's, then 4 7970's when they came out (I think a couple christmas' ago?) - then held in there through the $2 dollar doldrums, and sold a bunch of BTC all the way from $10 to $200 Since then I've re-invested in 4 LS from BFL, 1 batch 2 avalon, 1 Jupiter, and 4 of MrTeal's boards --- the avalon is the only one I think that will bring great profit (easily over double the 56 BTC I paid for it so far) The others will hopefully bring my total back to my desired minimum holdings of 100 BTC *(I nearly cleaned out my wallet ordering the Jupiter, back up to 44 BTC in the wallet now) so even though 3 out of the 4 ASIC bets I made will probably not make any returns, the 1 bet that panned out covered the losses of the other 3. Could I have done better by just getting the avalon? of course, but how can you know for sure unless you take a chance? sorry, rambling  TL,DR: I started with a 5850 and no bitcoins. I put no money that was not earned with bitcoin into this, and I hope to have approximately 100 BTC by this christmas. yeah, I know, small potatoes, that's me  |
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Mining is becoming more centralized each and every day, long gone the days when one could buy commodity hardware and mine with it without having to fight with the hardware producers for the same coins!
This! ... I hate the fact this is happening and you nailed it... so many dont get this very simple fact =( Yep, I am seeing this too. Farms are getting larger and more centralized. There must be some pretty hefty overhead for large mining operations though, isn't there? I mean, to deal with heat removal, labour costs of maintenance, security, rent or lease of the property, etc... I don't see how they can out-compete a small-time miner like myself with approx. 75 amps of free power and a handful of miners. Obviously they blow me out of the water on volume, but I've been pretty profitable so far. Even if it gets to the point where I'm down to 1 BTC per week, (as I was on my GPU's before my batch 2 avalon arrived) it's still paying the rent. |
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anybody care to hear what PSU Hashfast is using?
woohoo! that's the one I bought, hope it doesn't blow up my Jupiter. |
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I can't speak to the performance of the entire HX series, but my HX1000 has been running pretty much 24/7 on my main computer (the one I'm typing on right now), and ran 3X7970's for the last ? however long since they first came out until I shut them down when I got my avalon, but I still got one 7970 in there for games and litecoin, and the PSU is still kicking ass. Also, more than once, I had a pile-up of laundry or other debris blocking the exhaust of the PSU (I have a case where the PSU is on the bottom) and it got very hot, it ran pretty hot mostly all the time, but when the exhaust would get blocked it was totally roasting, and still, not one hiccup or complaint. of course, your mileage may vary, and I am very impressed with the efficiency of the Seasonic 1000 platinum, the thing barely gets warm, but I haven't nearly put it through the kind of torture that old HX1000's been through.. the only thing I worry about (and the main reason I chose the seasonic) is that the HX1000 is not a single-rail design, and I wonder if some of the problems we've seen aren't due to imbalanced loading on a multi-rail device??? But I'm not an engineer, I just played one in university. |
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I just ordered a replacement intake fan, I think it should do the trick.  |
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I also have this waiting (also got it from amazon) *bonus* paid for it with bitcoin via Gyft Does anyone know or have link explaining what was the problem with that Corsair? Might it be a problem that also affects other power supplies? |
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Yes, a big thank you to both MrTeal and ChipGeek for making this a reality, incredibly smooth and professional!
Question: how are people going to house their boards? They have PCI brackets on them, but I have a lot of boards coming and would quite like to get some sort of casing that can hold rows and rows of PCI cards, but don't have a stack of old motherboards lying around, which would have worked.
Does anyone know of any cases for holding rows of PCI cards? Or have any other thoughts on how to handle this? (and obviously space needs to be left for the coolers in between)
I'll bet you could buy some old GPU miners' used frames for not too much. My GPU mining wasn't at that kind of scale so I don't really know what sort of solutions they used - plus that required PCI risers and connections to motherboards, so you were always limited in density as v. few mobos would allow more than ~3-5 connections. I'm just looking for a physical structure to allow the cards to be stacked and nothing more, as they obviously connect via USB rather than PCI. Anyone know of anything like that where you can bolt a whole bunch of PCI cards in? I had a google and couldn't find much (as it's not a very common use case as most things with PCI brackets also need a mobo!) I've used just a quick frame I made from back in the GPU days, which is basically something I threw together in 15 minutes out of 1" wood and a piece of aluminum angle.  For my boards I'm planning on using a proper 20 slot PCIe expansion chassis that's rack mountable.
How do you rate the performance of that dual-white-fan in the middle? <edit> How do you rate the performance of your various cooling methods? The best and quietest one for cooling the chips would seem to me to be the tower style one in front but I notice you've got a little fan blowing at the vrm's. Have you tried putting a second fan on the back of the tower in a push-pull formation to try and get more airflow over the vrm's? would heatsinks like the ones they have on motherboards be helpful? </edit> Are there any reference type coolers (the ones with the blower on one end) that would be feasible on this platform? (btw, awesome job with this you guys. BFL should just send their "monarch" chips directly to you so this can be done right! |
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The major differences is OpenWrt update to r38031 and update Cgminer to latest(Version: 3.4.3 Latest commit: d5f61e9, Sep 22 2013) you can see that at the ChangeLog https://en.bitcoin.it/wiki/Avalon#20130923Thanks Xiangfu! My question is what are the major differences between ckolivas' 20130821 and this new xiangfu 20130923? I did run xiangfu's 20130723 for a bit on my Batch 3 just fine, but I've been happy with 20130821 so I am not exactly itching to change...
Seem like both Xiangfu and cklovias use OpenWRT r37008 but the new one upgrades cgminer 3.4.0 to 3.4.4?
If anyone has tested this new firmware, please report your findings. It will have to be quite impressive for me to switch from con's 20130703 |
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Just curious about if there's a reference design of how to mount 12 8-chip board and setup the cooling solution/power supply in an elegant way?
And since its hash power fall on about the power of BFL's 'Single', are you considering to give it a code name? maybe 'Singular' or 'Singleton'??
not sure about 12, and not sure about elegant  but I'm thinking of building an enclosure something like this. __________________________ | | | | | | | | | | | | | | | __________________________ | | | | | | | | | | | | | | | __________________________ open on both ends with 1 unit inside each compartment, then putting a box fan on the front and just leave the back open for all the wires and PSU and what not. I'm assuming you can run 4 easy with a 1200W PSU? or is that pushing it? depending on the size, I guess you could maybe make it 3X3 squares, which would fit 9, but I'd probably block off the middle box and only load 8. |
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I think the pizza guy went on coinbase to sell his bitcoins for USD, so I'm not sure who wins.
What he does with his winnings is his business. Just because he lost the trade with coinbase doesn't mean he didn't win the earlier trade. But yeah, I know, as some guy once said... "Hindsight is a bitch that only breeds regret." |
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So I stopped following the ASIC madness for a while to focus on building my dice game, but now I'm looking into getting back into mining again. I did some quick reading but the information seemed to be overwhelming. It seems like all the ASIC companies are not delivering, board companies are going bankrupt, ASICMiner Shares crashed, difficulty sky rocketed, people are angry.
So is it a good time to buy some ASIC right now or no? If so which company is the best and which model will most likely give a good ROI?
don't bother buying....you're taking a slice from the world pie. Good ROI = Does not exist. I obviously have miners on backorder and have a stronger interest in dispersuading you from joining in on the difficulty level. Hell Go with BFL that is your absolute best option lol. In all seriousness, cointerra and hashfast seem like the best bang for their buck in terms of hashpower to cost, but there is Bitfury which will likely ship soonest if you buy today...otherwise you could gamble and plan to mine altcoins and pickup a shiton of block erupter USBs for the cheapcheap (like less than 1500 will get you more than 15 GH/S delivered TODAY, not in at least 3 weeks like bitfury [which i think those Oct units are sold out too]) if you wanted ROI you needed to be invested in hardware at least a year ago or longer. At this point you are throwing a lot of good money down on a highly risky gamble that will likely not pan out...if you had substantial money and you for sure wanted to see a gain in profit then 'buy and hold' Since ROI is calculated based on today's bitcoin value, but mining it and holding it might result in higher ROI if bitcoin's value go up. It's like when guys were mining with CPU back in the days and think oh this ROI would never return, but when the price increased, all their past mining all of a sudden made a killing. No. The question is how high the bitcoin difficulty will go. In case you haven't noticed, it's going to the moon! Those guys that were CPU mining back in the day could have bought bitcoin for pennies. 10,000 BTC for a couple pizza's I believe? Who do you think won that trade? the miner? or the pizza guy? If you think bitcoin will increase in price, buy bitcoin, don't buy bitcoin miners. The rate of increase of the rate of increase is increasing at this point. It's unsustainable, but at this point there is too much sunk capital to turn back. Sad to say. |
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Sorry but that photo deserves to be shown again. It's truly beautiful. I can't wait to see it fully populated. (man that sounds dirty  ) Whose design work is that? is that you? or chipgeek? or both?? Also, are you planning to have the airflow moving from the chips towards the vrms? or the other way around? I'm curious to see which need more cooling, seeing as the hashrate seems to go up wrt voltage almost linearly, whereas it seems like you haven't even explored changing the clockrate, but now I'm babbling. Very exciting project. |
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