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I think its a bad idea, there were already way too many active topics in custom hardware as it was.
Yes the previous split didn't make sense, but having no split is even worse.
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Looking at those heatsinks, one has to wonder if anyone who designs these things understands physics.
Why not design the fins to be vertical instead of horizontal, they would release so much more heat and create a constant smooth current of air flowing vertically through the fins.
tl;dr: nope. |
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Couldyourdomainnamehavebeenanylonger? :p
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Dogie's Miner Setup Guides:Nicely formatted version available at dogiecoin.com!  Contents: 0) What to Expect1a) Powering1b) Powering - External (optional)2) Cooling3a) Configuration3b) Overclocking (optional)4) Troubleshooting5) Where to buy0a) What to Expect (top)The HexFury board is designed by c-scape and intron, and features 6 Bitfury chips. It ships in a hard plastic case to survive even the most treacherous journeys. It is worth noting that while the stock speed is rating at 11GH, my unit achieves over 13GH without overclocking. Specifications are as follows: | Chips | 6x Bitfury gen2 | | Hashrate | ~11GH stock, 15GH OC'ed with additional power | | Rated_Voltage | 5V | | Rated_Current | 2-2.5A at stock, up to 4A OC'ed | | Power_Consumption | 10 to 20W |
     1a) Powering (top)HexFurys are USB based miners, and as such are powered directly from a USB hub. Hub choice is extremely important, and external power is required for overclocking. The USB2 specification is only designed to provide 0.5A, and the USB3 0.9A. - Plug in the USB hub's power adapter into the mains and the USB hub.
- Plug HexFury into USB hub.
I would recommend the following USB Hubs:        1b) Powering - External (optional) (top)Additional external power if you want to overclock or run several HexFurys off the same hub. This requires a few steps: - Plug in mains power adapter into the mains power and into the USB hub.
- Cut the barrel plug off the end of the breakout cable.
- Strip back the external insulation and then the internal insulation, leaving about 3cm of bare conductor exposed.
- Wire the bare conductor cables into the terminal adapter.
- Plug the external 5V power adapter into the other end of the terminal adaptor.
- Plug one of the breakout cable's USBs into the USB hub, and the HexFury into the other.
Three components required:        2) Cooling (top)HexFurys require external cooling due to their high power draw. This can be done with the use of a simple 120mm fan or a USB powered fan. 120mm fan: USB powered fan:  3a) Configuration (top)Configuration is straight forward. While it is possible to run a HexFury off a Raspberry Pi, it is not recommended. Raspberry Pis do not support USB3, which is what the best and highest powered USB hubs use. Cgminer on a Windows based PC is therefore recommended. - Plug in a USB cable from your USB hub to your PC/laptop.
- Power the HexFury as above and turn the hub on.
- Windows will try and install its own drivers. Wait until it fails.
- Download the Zadig tool and run it.
- Choose "bi*fury" and "WinUSB". Click install driver.
- Once installed, you may have to restart.
- Download the latest version of cgminer and extract it.
- Create a new text file using notepad, with your pool and miner information in it, as below. Save it as a .bat file in the same directory as CGMiner.
- Run the bat file to start mining.
Antpool cgminer.exe -o stratum.antpool.com:3333 -u username_worker -p anypassword cgminer.exe -o stratum.btcguild.com:3333 -u username_worker -p anypassword cgminer.exe -o us1.ghash.io:3333 -u username_worker -p anypassword Overclocking will be possible once HexFury specific code is added to cgminer (soon). At the moment overclocking is only possible by increasing the voltage (5-5.8V) which I am not keen on recommending. 4) Troubleshooting (top)TBD as problems arise. Legal disclaimer: This information is for general guidance and does not constitute expert advice. We are not responsible if you, your property or a third party is injured or damaged as a result of any interaction with this information, and no warranty is provided. All text and images are covered by copyright. 5) Where to buy (top)   
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Hello all.
I'm selling an Avalon B2. It has one module from B2 and one from B3. Because the B3 modules have slightly different mounting holes, the module mounts at a slight angle but is no problem.
Selling from the UK, rock solid at roughly 47GH.
Looking for a sensible price, INCLUDING VAT, no PSU. btc or fiat is fine.
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Wishful thinking. $1mil a day at these prices=~63% of all mining (total current output is $1.584mil/day). There will be $0-1 price immediately afterwards and then the farm will close. If they are smart, they will not get above 33-39% or ~0.5mil a day at todays prices. EDIT: yep, they interviewed on Feb 28 when price was ~600-650, hence they are aiming at 42-45% of ALL mining That doesn't take into account that if their farm is 42-45% of all mining, it has then increased the network significantly so their actual share is less (or they want to deploy even more). |
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Unless you're VAT registered like a sensible person. Be careful with the VAT in the UK, it's not as straightforward as just registering and claiming it back/not paying it and if you get it wrong the penalties are not pleasant. To claim VAT back on outputs you need to be charging VAT on the inputs you can't just use one side. So because the sale of bitcoins doesn't attact VAT then you are unable to claim it back on the purchase of the machine. If you buy hardware to resell then you can claim the VAT back as you would charge it on the sale. This was the advice given to me by my accountants after discussion with HMRC. Not saying it's 100% correct as this is new territory but something to be wary of. +1 http://www.hmrc.gov.uk/vat/start/register/when-to-register.htmYou have to be a business selling goods and/or services regularly and you have to charge VAT on all sales/service invoices. ..... yes? That is how VAT works. All I'm saying is you don't get the additional hit of 20% high purchase price, instead you lose 20% of your profit (or -20% of a loss). |
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i know its a bit hot but stock fan is horribly to noisy, cant stand it. i installed 2 bequiet shadow wings, now its quiet and as long as temp stays below 60° c i think it's ok, no?
Github suggests not to let it go above 50. These aren't on die or even on chip temps, so the actual die temps will be ~+30. |
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Unless you're VAT registered like a sensible person. |
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Someone let the dogs out? Again?
Yep. Let's see what materialises. |
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DiffA and DiffR are the important numbers as they take into account your pool difficulty.<1% is perfect.
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0) Take all android phones off wifi and observe
1) Try different pools
2) Take third cube off and observe
3) If so, try reversing the 3rd cube's position with a working cube and observe
That'll keep you going.
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Its all legit. We use escrow.com to secure and deliver the goods to our clients.
Then you won't mind posting the chip and power specs along with a video of the miner running. 2TH/s 4 x GoldStrike I 500GH/s 28nm ASIC (2 per board) Linux (embedded) CGminer, with web-based management interface Desktop or 4U rack mountable (rack slides required) Single RJ45 10/100 Ethernet port CoolIT Direct Contact Liquid Cooling system 5 x 120mm (2 front, 3 rear) 2 x 1100W Power-One 80 PLUS Certified Platinum 110-240 VAC ~2100W Temp 0°C to 35°C Emissions Compliance FCC / CE Safety Certification UL / CE So you have managed to get to 500GH per GS1 where Cointerra has failed? Per TWO GS1s it looks like. Nevermind, that shouldn't make sense. |
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Thanks I got two CXM 750's. What is the best dual PSU adapter to get them running in sync? My motherboard is the ASRock H81 pro BTC
Easy peasy. |
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Try a different pool:
stratum+tcp://eu-stratum.btcguild.com:3333
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Oddly enough, if you check the forum now, the feedback system is disabled.
Why would that be?
Because it only shows in market place and other certain subforums?  |
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It wouldn't do well, it only has 65A for PCI-E devices due to its split rail design. Thats 780W on a 1250W PSU. [/quote] Thank you for your thoroughness and prompt response. I'm new to the mining rig game, but use to build PC's back in the day. It seems like your PSU ratings anything over 850 is on the average to poor side. I may have missed this in the thread, but is it more efficient to stack lower wattage PSU's than get a big one? I'm building a rig, but it will be pieced together (only 2 GPU's to start, R290 or 290X), and rather than continuously upgrading/swapping out PSU's, I was wondering what best PSU's would be paired. going to build it in a rectangle 19x13x10 milk crate. [/quote] Essentially the larger PSUs can't compete on price efficiency compared to the mid range sizes (~600-800W). Pick yourself up something corsair, can never go wrong. And yes, much more efficient to bridge 2 mid PSUs than one monster. |
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Known "secret" in the industry:
KNC won't ship Neptune in Q2. They'll get samples in July / August.
They've taped-out in the beginning March, 20nm cycle time takes 4-5 months.
Like other ASIC provider we won't disclose here, they've chosen the interim, problematic 20nm process.
20nm will be replaced by 16nm FinFET next year, for a good reason.
Ask for transparency. It's your money.
I was absolutely astonished to read your post effectively attacking a competitor. It's very easy for anyone to hide behind an 'open secret' as you don't have to name a source .... I find it hard to believe that whoever is dealing with KNC's business at their chosen foundry would risk legal action for them violating the NDA's that will be in place, let alone risk losing their job for breaking company rules on confidentiality. And where on earth do you get your timescales from? I have no interest in your product or KNC's, so have no axe to grind here, I think what you have done is very unprofessional and may well cause your competitor and their customers unnecessary added stress, and for what? Do you hope to pick up some of their cancelled Neptune orders? And why not mention the 'other asic vendor we won't disclose here' when you're happy to 'disclose' KNC's stuff? Just remember that secrets work both ways: how would you like it if someone said it was an 'open secret' that you're using asicminer chips? I think you owe the KNC people an apology. It wasn't really attacking, it was quoting an industry analyst that provided information contrary to what KNC is advertising. 1+1 should =2. |
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