What about that ASIC company? I haven't heard much from them lately, but what I have read seemed promising.
If they don't have a product to sell, I can't buy it. I wish them luck, however. |
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I''ve just updated the plan to switch from ZTEX to BFL.
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I updated the plan to use BFL instead of ZTEX. Much cheaper to get of the ground and reaches full profitability much faster.
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I just ran these numbers in another thread, this proves why I need to focus on green energy production: Using the calculator at http://bitcoinx.com/profit/index.php using 1.5m diff, $5.00 BTC prices, $0.103 per KWH BFL MiniRig is 25200 mhash @ 1250 watts for $15,295, 1.64 mh/$, 20.16 mh/w Enterpoint Cairnsmore1 is 800 mhash @ 40 watts for $640, 1.25 mh/$, 20 mh/w BFL single is 832 mhash @ 80 watts for $600, 1.38 mh/$, 10.40 mh/w Lancelot is 500 mhash @ 25 watts for $500, 1 mh/$, 20 mh/w BTCFPGA ModMiner is 800 mhash @ 40 watts for $1070, 0.74 mh/$, 20 mh/w ZTEX 1.15y is 850 mhash @ 38 watts for $1359, 0.62 mh/$, 22.36 mh/w FPGA Mining X6500 rev3 is 400 mhash @ 17.20 watts for $580, 0.68 mh/$, 23.25 mh/w GPU mining is 2700 mhash @ 1050 watts @ $2600 for mobo, cpu, mem, psu, 4x 7970s, 1.03 mh/$, 2.57 mh/w BFL MiniRig's peak profit is at 57 months at $22222.48, 145% return Cairnsmore1 peak profit is at 57 months at $544.26, 84% return BFL single's peak profit is at 47 months at $490.04, 82% return Lancelot's peak profit is 57 months at $243.54, 48% return Modminer's peak profit is at 57 months at $119.61, 11% return X6500's peak profit is at 60 months at $25.78, 4% return 1.15y's peak profit is at 60 months at -$75.37, 5% loss GPU mining's peak profit is at 24 months at -$917.51, 35% loss |
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500+ mh/s for $500 or so??? Even without any warranty I may be in for some  Good Luck !!!!!!!! Can you explain why you're excited when BFL offers more MH/s/$? I like having competition, but I'm not getting it? Well,as you know BFL's shipping time is,hhmm,slow........& the lower wattage of Lancelot is a +. But mostly,all but BFL's hash rates are pretty low=long ROI.Almost $600 for 300+ mh/s takes close to 15 months to recoup investment. I hope to encourage higher hash rates by investing  Also being unemployed,I can only come up with $500-$600 a pop  Yea but you can save up and buy a BFL single. Lancelot should've been at least 4 Spartans. There are 3 competitors that offer good prices (Well 1 out of 3) 1: https://bitcointalk.org/index.php?topic=49180.0 <----- $1,359.00 2: https://bitcointalk.org/index.php?topic=79114.0 <----- $1,069.99 3: https://bitcointalk.org/index.php?topic=78239.0 <----- $640 All these are Quads. They also got doubles. PS. Kinda have to go, I'll post more info soon. Don't kill me just yet lol. Small problem, BFLs use twice as much power per mhash and thus take much longer to pay themselves off, and you also have to start paying attention to cooling problems as well. So I looked into the power issue, and say that the BFL does produce 832MH/s @ 80 watts. Hardware break even is 328 days. Lancelot if it pushes 500MH/s @ 25 watts. 1 year, 102 days. This is with the current price of BTC and a 0.103 kw/h cost of electricity. If the calculator is wrong, sue me - http://bitcoinx.com/profit/index.phpThe calculator is wrong because although it uses historical conditions to predict the future, it doesn't predict a realistic window. Now, if you believe the calculator is correct: BFL's peak profit is at 47 months at $490.04. Lancelot's peak profit is 57 months at $243.54. So, yes, the BFL will provide the best deal. You make twice as much. For Lancelot to be an equiv deal, it will need to cost about $250. Now, in comparison, BTCFPGA ModMiner is 800 mhash @ 40 watts for $1070 ZTEX 1.15y is 850 mhash @ 38 watts for $1359 Modminer's peak profit is at 57 months at $119.61 1.15y's peak profit is at at 60 months at... negative $75.37. Thats right, the best you can do is lose $75.37. Oh, and GPU mining? Lets say $400 for mobo, cpu, mem, psu, $550 for 7970, 250 watts usage at 1125mhz, 675 mhash each, four 7970s: 2700 mhash @ 1050 watts for $2600 or so. Peak profit is a loss of $917.51 at 24 months. Edit: BFL MiniRig is 25200 mhash @ 1250 watts for $15,295 BFL MiniRig's peak profit is at 57 months at $22222.48 |
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500+ mh/s for $500 or so??? Even without any warranty I may be in for some Good Luck !!!!!!!! Can you explain why you're excited when BFL offers more MH/s/$? I like having competition, but I'm not getting it? Simple as that: They must have found a way to get chips that usually cost $2000-4000 each for less than $200. Some people think they've found a source for used or unwanted chips, which is pretty sneaky^Wbusiness savvy. |
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500+ mh/s for $500 or so??? Even without any warranty I may be in for some Good Luck !!!!!!!! Can you explain why you're excited when BFL offers more MH/s/$? I like having competition, but I'm not getting it? Well,as you know BFL's shipping time is,hhmm,slow........& the lower wattage of Lancelot is a +. But mostly,all but BFL's hash rates are pretty low=long ROI.Almost $600 for 300+ mh/s takes close to 15 months to recoup investment. I hope to encourage higher hash rates by investing Also being unemployed,I can only come up with $500-$600 a pop Yea but you can save up and buy a BFL single. Lancelot should've been at least 4 Spartans. There are 3 competitors that offer good prices (Well 1 out of 3) 1: https://bitcointalk.org/index.php?topic=49180.0 <----- $1,359.00 2: https://bitcointalk.org/index.php?topic=79114.0 <----- $1,069.99 3: https://bitcointalk.org/index.php?topic=78239.0 <----- $640 All these are Quads. They also got doubles. PS. Kinda have to go, I'll post more info soon. Don't kill me just yet lol. Small problem, BFLs use twice as much power per mhash and thus take much longer to pay themselves off, and you also have to start paying attention to cooling problems as well. |
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AMD has published a specification for IOMMU technology in the HyperTransport architecture.[1] Intel has published a specification for IOMMU technology as Virtualization Technology for Directed I/O, abbreviated VT-d.[2] Information about the Sun IOMMU has been published in the Device Virtual Memory Access (DVMA) section of the Solaris Developer Connection.[3] The IBM Translation Control Entry (TCE) has been described in a document entitled Logical Partition Security in the IBM eServer pSeries 690.[4] The PCI-SIG has relevant work under the terms I/O Virtualization (IOV)[5] and Address Translation Services (ATS). So, are we done playing wikipedia lawyer? |
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Have you enabled IOMMU in the BIOS? It is my understanding that is necessary for PCIe pass-thru.
IOMMU is for AMD; I have an Intel platform so I have VT-d. And yes, it is enabled. PVE kernel panics when I try to hotplug the devices to the virtual machine, and the virtual machine won't boot when the devices are added to the config file when it isn't booted. No. IOMMU is a industry term for it. VT-d is an implementation of IOMMU, AMD, Sun, and IBM also offer implementations of it. |
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I would like to but I don't have the experience or knowledge about hardware to run a mining company  //DeaDTerra Well, then you should hope I go ahead with DMC. Remember to vote in the new poll: https://bitcointalk.org/index.php?topic=78919.0Sorry I think that venture is to big and to late to be profitable in the Bitcoin sense. It might be profitable in USD in the long run but never in BTC, you won't get the mining operating fast enough to make it profitable before the 25BTC cut and then it goes downwards. It might be profitable in the USD sense as you will have a major hash power once the IPO is out but I think it's to big to be profitable in BTC, as you are fighting a clock against the block reward downsizing :8 //DeaDTerra Yeah, but what about the secondary income stream of selling power back to the power company? A lot of Silicon Valley VC types think I should just skip mining altogether and just go for power generation, but I won't go for that, theres too much market for more large scale mining farms. |
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I would like to but I don't have the experience or knowledge about hardware to run a mining company //DeaDTerra Well, then you should hope I go ahead with DMC. Remember to vote in the new poll: https://bitcointalk.org/index.php?topic=78919.0 |
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Hello! Another week is about to start and Gamma Bitcoin Fund has grown to the size of 3600 Bitcoins, this is great  This week, I will be focusing on optimizing and getting out bots up and ready, the arbitrage is still not performing as good as we want,so the developer and I will be looking to optimize it before we add any substantial volume. I will also be working on a couple new startup projects with Jonathan, so hopefully we can get some shares from those startups and help get them off the ground  I would also like to note that I have changed the way I take the share prices on GLBSE, I now use the 24 hour average to get a more accurate reading. I would also like to get the investors opinion on me taking a personal loan from the fund. This loan would be to purchase a motherboard+cpu+ Ram for my new mining rig. I have already purchased a chassi, a PSU and two 5850s, but due to that the Motherboard and CPU I purchased second hand is not working. I need to purchase new once, so I would like to suggest a 50 BTC loan for me to get a 2x5850 rig up and running I would purchase http://www.inet.se/produkt/1902197/msi-z77a-g43-atxhttp://www.inet.se/produkt/5304228/a-data-1gb-1x1024mb-cl9-1333mhzhttp://www.inet.se/produkt/5310006/intel-pentium-g630-dual-core-2-7ghz946+96+596= 1638 Kronor or 244 USD Which correlates to 49 BTC, so lets say a even 50 BTC to include trading fees etc. The 2 5850s will pull 700 mhash and I have another rig doing 200 mhash to a total of 900 mhash. 900 mhash 24/7 is 0.6 BTC per day at the current rate So I would be able to pay back in 83 days Please speak your mind of this loan and also suggest a % interest for this loan. //DeaDTerra Honestly, I wouldn't invest in GPUs. Go buy yourself a dummy box to run Bitcoin on (if you dont already have a 24/7 box) and buy one of the quad Spartan 6 boards, ZTEX has the 1.15y (~$1300), Enterpoint has one coming out real soon, and BTCFPGA has their Modminer (~$1,000). I'd authorize a loan for that. You'd have about 800 mhash 24/7. 5% interest would probably be enough to cover it. Edit: Actually, on second thought, why not just start your own mining company? 50% of output after electricity costs for life of hardware bond. I'd go for that. |
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1) Currently I have a total of 39 Investors, they have been joining in about 5-8 new investors each week. Mostly people invest small sums like 10-20 BTC to then increase it the following week when they get their profits paid out Yeah, but I'm one of those investors, and I'm like, 100 times more awesome than any generic Gamma investor.  |
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6 to 2x 6 is a really bad idea and I wish China would quit shoveling this shit on us. Essentially, it tells the very dumb users out there they can plug 150w worth of stuff into something that can only safely handle 75w of gear. Those two extra grounds don't just signal that 150w is possible, they're also legitimate grounds, the 5 pins of grounds is enough together to handle that 150w of 12v.
And yes, 6+2 is the same as 8, the extra two grounds are on a 2 pin plug so you can plug 8s into 6 pin sockets without a converter.
Also, Coolermaster sucks.
http://www.digikey.com/us/en/ph/Molex/MiniFitJr.htmlA 6pin MiniFit Jr. is more than capable of carrying 150W. The restriction to 75W has more to do with validating power supplies when the spec was first made than it does with the physical capabilities of the connectors. The pins, the plug and socket, and the wiring itself must all match minimum specification. With the right parts, you could do 300 watts or more across a PCI-E 8 pin plug.... as long as it meets the minimum specification for such. As such, EPS12 plugs are also Molex MiniFit Jrs, and they happily do around 350 watts. Kind of pisses me off they didn't for for 150/300 watts for 6/8 instead of 75/150, it would have been far more useful. |
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This is why switching to 8x Spartan 6 boards that use a PCI-E 6 is superior. Many PSUs have like 6 or 8 PCI-E 6/8 plugs. The NZXT Hale90, Bitcoin's favorite PSU, has 3x 6 and 3x 8, and you can get 8->2x 6 splitters, so you're looking at 9 boards, or 675 watts, off a single NZXT Hale90 750, or about 15 ghash.
This is very useful info. You specifically mentioned 8->2 6 splitters. May I ask why one couldn't use 6->2 6x splitters? It is my understanding that the 8 or 6 pin PCI-E is the same, but ground from pins 6 and 7 is also bridged to pin 4 and 8. Look at the Cooler Master Pro Hybrid 850 (single 70A rail), it has 4 PCI-E out (gray in picture). It comes with 4 cables. 2x PCI-E 6 Pin to PCI-E 6+2 Pin 2x PCI-E 6 Pin to 2x PCI-E 6+2 Pin Total 6x PCI-E 6+2 Pin (I assume PCI-E 8 Pin and PCI-E 6+2 Pin is the same, isn't it?) Image: http://www.coolermaster-usa.com/upload/product/3057/gallery/full/5.jpg?17330524836 to 2x 6 is a really bad idea and I wish China would quit shoveling this shit on us. Essentially, it tells the very dumb users out there they can plug 150w worth of stuff into something that can only safely handle 75w of gear. Those two extra grounds don't just signal that 150w is possible, they're also legitimate grounds, the 5 pins of grounds is enough together to handle that 150w of 12v. And yes, 6+2 is the same as 8, the extra two grounds are on a 2 pin plug so you can plug 8s into 6 pin sockets without a converter. Also, Coolermaster sucks. |
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please use molex connector.
the pcie connector is very limited per psu.
What? The "molex" connector (i.e. peripheral device connector) is only good for about 35 watts, if I remember correctly. The PCIe 6-pin connector is good for 150 watts, however. Both wrong. Molexes are good for 60 watts 12v and 25 watts 5v. 6 pin PCI-E is good for 75 watts 12v, and 8 pin is 150 watts. OK, I wasn't sure about the first one, but I know the 8 pin doesn't have any additional current carrying conductors, so technically the 6 pin can handle 150 watts. The 8 pin just has 2 additional ground pins that tell the card that the correct connector is connected. You're half right. Yes, they both have 3 12v lines, but the extra two grounds on the 8 pin plug signal that the wiring is lower gauge (ie, higher current) and that there is also sufficient grounding available. Putting 150w on a 6 pin PCI-E connector is a good way to fry shit. It should also be noted that the wire gauge makes a big difference. Claiming that you can put 50W through the Molex connector may be true, with optimal wiring. But when you see power supplies with 5x molex all daisy chained on a single strand of 18AWG wire, putting 250W through a single strand of 18AWG is a BAD idea (just saying) So people need to be aware of the connector limit, and the wiring limits, and PSU Rail limits, and so on. Looking at only one specific component is bound to start a fire. (But yes you are correct, I'm simply pointing out that many people will read that and go "OH I can use this cheap chinese supply that says it's 600W and has 9 molex on a single strand, so I can run 450Watt through that strand for this rig running on my carpeted floor in my home" and expect not to burn their house down) Also it should be said that while that's the rating for the connector, poorly made connectors which may not provide reliable contact are notorious for arcing inside the housing, and causing thermal damage (eventually resulting in a fire, melted parts at the least) This is why switching to 8x Spartan 6 boards that use a PCI-E 6 is superior. Many PSUs have like 6 or 8 PCI-E 6/8 plugs. The NZXT Hale90, Bitcoin's favorite PSU, has 3x 6 and 3x 8, and you can get 8->2x 6 splitters, so you're looking at 9 boards, or 675 watts, off a single NZXT Hale90 750, or about 15 ghash. |
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That said, I'm not going to do business with someone that hasn't proven themselves to the rest of the community. Does anyone even have any of yohan's boards yet?
They are being made by the existing FPGA company Enterpoint: http://enterpoint.co.uk/contact-us/They haven't delivered yet, but they have one of the fastest development turnarounds that I have ever seen from any manufacturer. They expect to ship soon, and then I suppose there will be some reviews. Oh, he works for them? I wish people would indicate what company they work for, like in their sigs or something. Still, 4 Spartan 6s, ~800mhash for $640? That sounds very wrong. From the OP in that thread: The price guaranteed until the end of June 2012 is GBP £400 / USD 640 / 520 Euros (plus tax and shipping). We are selling at the cost to manufacture price until we do the work of benchmarking it and check it working with the Bitcoin interface software. After we complete the benchmarking/software work the price will increase by 50% to cover our costs in doing this work and general support.
Sounds like they're selling the "beta" version at cost for now. More like alpha version. Does anyone even know of the Spartan 6 bitstreams even work on them? I looked through the thread, but it doesn't seem to mention anything. |
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That said, I'm not going to do business with someone that hasn't proven themselves to the rest of the community. Does anyone even have any of yohan's boards yet?
They are being made by the existing FPGA company Enterpoint: http://enterpoint.co.uk/contact-us/They haven't delivered yet, but they have one of the fastest development turnarounds that I have ever seen from any manufacturer. They expect to ship soon, and then I suppose there will be some reviews. Oh, he works for them? I wish people would indicate what company they work for, like in their sigs or something. Still, 4 Spartan 6s, ~800mhash for $640? That sounds very wrong. |
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