Can someone explain me how to set up cgminer for solo mining a coin?
I am lost from the beginning with all these source codes and conf files.
Please walk me through step by step from the beginning.
Do you realise that unless you have a massive hashrate (not particularly likely for someone who can't even read a readme file) then you're just wasting your time. There's a reason there ain't many guides - it's pointless for most people. Also, UTFSE; https://bitcointalk.org/index.php?topic=83371.0Yes it's for litecoins, just don't bother with the --scrypt bit and it's still completely relevant. |
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Merged mining would be awesome plus it would strengthen each of their networks  Yep, it would create a massive hash rate and devastate the other competing coins. Cool idea, but ....er ? You cant merge mine the same protocol. They're all script, how could they be merged ( note I dont have a clue wtf im talking about and I;ve been up for 24 hours ) What like both NCM IXC, DVC and BTC can all be mined together (all SHA256) Something to keep in mind merge mining can devalue a coin as it takes less (perceived) mining effort/cost. |
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If you want to put it in that low profile server keep in mind that low profile cards (what 1u servers are normally expecting) should only draw 25w from the motherboard so you may well burn it out.
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Holy old threads!
The reason for multiple power connectors on larger GPU's has not so much to do with the wire I2R losses, but the spring contact I2R losses of the PCI-E power connector. Your picture demonstrates the reason fairly clearly. 3 pairs of 18 AWG wire could carry > 75A@12V (900W) at the conductor lengths in most ATX PSU's without posing a fire hazard based on the insulation temperature ratings. Hope it didn't do any major damage otherwise!
Personally, I always make sure it's connected (1) 12V rail per GPU for this reason as well, it is more likely to ensure an equitable wattage split between the connectors and conductors involved.
Oops not sure how I did that, just scrolled up thinking I wonder who necrod this then?   |
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There is an 11 and a 12 MHz surface mount crystal on the Rev3. The 11MHz is the 3rd device from the left at the top in that photo that has the flash whitewashing the markings out. Not sure how that makes 333MHz...
just a shot in the dark, but 11*12*2.56 = 338 perhaps that is somehow responsible for the 333MHZ speeds? (or am i just 'making math work'?) Where did the 2.56 come from? I was wondering that too, normally to multiply a clock signal, a PLL is used to multiply the input by a certain integer. We need someone more versed in hardware design to have a close look, I wouldn't be comfortable definately recommending replacing something and breaking your erupter, although you could get a 13 or 14 mhz crystal and try both, not sure if this would be safe/cause issues though. I'd suppose if you replaced the USB one by accident it just wouldn't be recognised by the computer till you switched it back out. Try PMing friedcat. |
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if he' just lack of extra 6-pin PCI-e out from powerful enough PSU[which is unlikely, cuz all reasonably-rated had two at least] its okay. Well, it's common knowledge that the 6 pin connectors that are specced for 75W can safely deliver 150W+. People use 6->8 pin adapters all the time and as you already said, the 6+2 pin connectors only add 2 more ground wires. However, if you're connecting a power hungry card like a 5970 to a single line, you're going to be drawing up to 225W from that (more if overclocked). I'm not sure if that's still within safe limits (the wires probably won't overheat, but the connector could get damaged at the point where you're splitting it). If you still want to risk it, you should also check if your PSU can deliver that much on a single rail. This safe?  Melted plugs lead to non connected contacts which heats up the rest of the pins more and things can burst into flames. |
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This is amazing, I did wonder in the first pic if those were plastics cups. Are they being used or just a safety measure?
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To stay on topic, the answer is yes, there is a market for PCI/PCIe ASIC miners. Are USB better? Who cares, not the topic here.
What many people are saying though is that there is no need, epecially for mining farm type setups who will be the main/biggest customer base proportionally. You can get PCI-E FPGA boards too but very few people buy them for mining. Standalone ethernet pros: Less chip/board cost Easier cooling solutions Less driver/support issues Easier remote access and monitoring |
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No ones adding GPU to mine SHA256 unless they REALLY can't do their calculations right. And if BTC price goes so much higher as you expect you're better off with bitcoins than these, the higher the BTC price, the more people are going to bring bring new miners online; increasing difficulty even faster.
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Do not sell SATA to molex. B/c people are going to start connecting those Molex to PCI-E 6 pin. This is a perfect recipe for fire.
Ahhh. I was carrying SATA to Molex for powered risers, where the power draw was going to be much less than PCI-E 6-pin. I assume that Sata-PCIE is a no-go, right? Are there any other ways to increase the number of PCI-E pins on a PSU? Or does it have to be a native molex to work (I notice that most GPUs come with Molex to PCI-E 6-pin). You'd have to gang 3 SATA connectors, using all of the power pins to supply one 8 pin PCI-E. SATA pins rated at 1.5A max, 3 per connector so 4.5A max per SATA PCI-E 8 Pin can supply up to 150w, divided by 12v = 12.5A PCI-E slot can supply up to 75w which comes to 6.25A so still too much for a single SATA connection. So if all the power pins on the three SATA connections are high quality and connecting properly you get just 1.5A headroom on PCI-E 8pin using 3 SATA, going nearly 2 amps over the spec on powered risers when using just one. Would be much better off just stripping the wires and crimping them into PCI-E connectors directly or using electricians terminal blocks and molex-PCI-E's with the molex end cut off. |
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You buy these because your GPU mining rigs have been profitable for over 2 years and you are turning them off now. Averaging up a tiny bit in BTC is worth the power savings to maintain percentage of hash rate while difficulty is still low.
You buy these because they compliment your Jalapenos or FPGAs which are also already profitable.
You buy them to support the network instead of expecting the network to support you.
If you really want to support the network run a few nodes on dedicated/virtualised servers to help new users load the blockchain quicker. |
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hi. i got a question in regards to a rig i built ( https://bitcointalk.org/index.php?topic=7216.msg2602216#msg2602216). im running at 240V, when at stock clocks the total current off the wall was 5A (1200W). then if i downclock it goes down to 4.7A (1130W). Overclocked peaked at 5.5A (1320W). i have corsair AX1200 which is able to handle more than 1200W as peak though could someone please advise whether running at full load will dramatically reduce its lifetime. i plan on using it for at least two years. thanks. Maybe try undervolting the cards, since doing this should reduce the power draw quite a lot. Also each of those 120mm fans probably draws at least 10-12w so powering them separately should give you another 60-72w headroom. Also the power drawn from the wall isn't exactly what the PSU is outputting - you have to think about the PSU inefficiencies too. And disabling one core of the CPU in BIOS will cut some power consumption too. |
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This idea is stupid, you're basically asking them to cover power and hosting till you have 90% ROI. What's in it for them? More risk, complaints and less profit if you consider the fact they are using KWs of electricity, having to deal with the heat that entails and then having to ship each device once it's 'broken even'.
Sorry but this is the real world, idealists attempting to profit will get screwed over in bitcoin mining, go with an established company like enterpoint if you want a turnkey solution, or go with any one of the cowboy companies and take a risk.
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I got a tip from a guy that's mining with erupters to mandatory use some USB hub and an external fan, your USB plug on the MAC could be damaged from heat dispersion.
Also they probably wont fit side by side. Macbooks have about 1mm clearance between two normal usb cables. |
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The problem there is your use of IE. |
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I tried logging in with a fake info, but it wouldnt let me. Something doesn't add up. If it was made on the 24th.. them why have that site not accept legit passwordS?
Because all it probably does is send off the form input to an email address. |
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Nice work! Greetings to Slovakia from Ukraine!  I have two questions: - Will this shield be backward compatible with Arduino Uno? - And what is needed to adopt the shield/rig board to bitfury's chip? Thanks! Very very very unlikely: the DUE has an ARM-A3 and communicates at 3.3v compared to the 328's 5v! ARM-A3: A 32-bit core, that allows operations on 4 bytes wide data within a single CPU clock. (for more information look int type page). CPU Clock at 84Mhz. 96 KBytes of SRAM. 512 KBytes of Flash memory for code. a DMA controller, that can relieve the CPU from doing memory intensive tasks. Whereas an Uno has a 16Mhz 8bit CPU with 16KB of ram. Loving the work btw, hope you get some bitfury chips! At 0.5w/ghash they look great. |
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Exactly why I was asking the question, thanks. One post here from "Coinmining" seems they have ordered the Alibaba devices. I was wondering
if they have one functioning.
Nope, read their post, those are the 30 samples they received from avalon after ordering 10,000. Why don't you order some from 'Shenzhen Goldtech' and come back and tell us the result? |
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