Felipeo (OP)
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Activity: 476
Merit: 262
EOSABC
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October 18, 2013, 01:33:35 PM |
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BFGMiner Support?
That would be a huge plus  BFGMiner also in progress... Photo album* * final color of soldermask will be red "the color of fury beast". Nice pool you chose  http://imgur.com/a/9ctaZ#6Now, let's hope those two reels of chips end up pointed (mostly) there... spiccioli We like this type of transparency and accessibility GJ spiccioli ! |
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"The nature of Bitcoin is such that once version 0.1 was released, the
core design was set in stone for the rest of its lifetime." -- Satoshi
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Xian01
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Christian Antkow
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October 18, 2013, 02:04:34 PM |
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100 ports standing by.
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Chronikka
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October 19, 2013, 01:28:49 PM |
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At 0.85 watt per g/hash and 5 gh/s advertised, thats a power draw of 4.25 watts per stick. A USB port outputs at 5 volts, so simple math from there (Amps = Watts / Volts) and you get 0.85 amps of current being drawn from each miner.
Only USB 3.0 slots can support that current (and just barely). USB 2.0 ports can only provide .5 Amps of current...nowhere near enough. So does anybody know where you can get cheap USB 3.0 hubs that have an external power adaptor? Anker hubs are too expensive. I might as well go buy a non-usb based miner if I have to spend $50 per hub.
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"The true sign of intelligence is not knowledge but imagination" -Albert Einstein
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tadzio
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October 19, 2013, 05:09:20 PM |
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At 0.85 watt per g/hash and 5 gh/s advertised, thats a power draw of 4.25 watts per stick. A USB port outputs at 5 volts, so simple math from there (Amps = Watts / Volts) and you get 0.85 amps of current being drawn from each miner.
Only USB 3.0 slots can support that current (and just barely). USB 2.0 ports can only provide .5 Amps of current...nowhere near enough. So does anybody know where you can get cheap USB 3.0 hubs that have an external power adaptor? Anker hubs are too expensive. I might as well go buy a non-usb based miner if I have to spend $50 per hub.
Not sure USB 2.0 cant provide more current then specs say. What if we connect powered USB hub to ATX (5V) power supply with enough Amps. Maybe the circuit will get bit hotter but it may handle 4.25 Watts. I'll give it a try with my DUB-H7 when I get a chance |
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Chronikka
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October 19, 2013, 05:23:03 PM |
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At 0.85 watt per g/hash and 5 gh/s advertised, thats a power draw of 4.25 watts per stick. A USB port outputs at 5 volts, so simple math from there (Amps = Watts / Volts) and you get 0.85 amps of current being drawn from each miner.
Only USB 3.0 slots can support that current (and just barely). USB 2.0 ports can only provide .5 Amps of current...nowhere near enough. So does anybody know where you can get cheap USB 3.0 hubs that have an external power adaptor? Anker hubs are too expensive. I might as well go buy a non-usb based miner if I have to spend $50 per hub.
Not sure USB 2.0 cant provide more current then specs say. What if we connect powered USB hub to ATX (5V) power supply with enough Amps. Maybe the circuit will get bit hotter but it may handle 4.25 Watts. I'll give it a try with my DUB-H7 when I get a chance I dont believe USB 2.0 slots can't provide more than .5 amps beyond minor fluctuations. Its the same problem asicminer ran into with the block erupters. They draw the maximum of .5 amps from a usb 2.0 port and these will be drawing close to the maximum provided by a usb 3.0 hub (Max is 0.9 amp). Any hub that powers these will need a beefy power adaptor or it will have to be modified to be powered from the PSU. The newer Anker Hubs come with a 5 amp power adapter and 0.9A is provided by the port you plug it into. Thats a max of 6-7 of these running on a $50 anker hub...and you are unlikely to find a usb hub that comes with an adaptor capable of providing more than 5 amps. I use the Anker as an example because its the only one I know of that has a 5 amp power adapter. |
"The true sign of intelligence is not knowledge but imagination" -Albert Einstein
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jdebunt
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Activity: 1596
Merit: 1010
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October 19, 2013, 09:01:18 PM |
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keeping an eye on this, looks very promising and possibly useful a future cryptonerd article |
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Bicknellski
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October 20, 2013, 06:19:04 AM |
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Kind of wished we pushed Andreas on doing a 2 chips design in July instead of 1 chip.
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TechCF
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Activity: 109
Merit: 10
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October 20, 2013, 06:47:35 AM |
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Regarding power, several motherboards and USB 2.0 hubs have charge ports with >=2 A current. Looking forward to the release of these sticks. Good job!
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Chronikka
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October 21, 2013, 03:46:14 AM |
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Regarding power, several motherboards and USB 2.0 hubs have charge ports with >=2 A current. Looking forward to the release of these sticks. Good job!
Charge ports don't provide a data connection usually. They are for just that...charging. So you can plug things into the slots but the OS will not see them. The anker hubs have a port like that. |
"The true sign of intelligence is not knowledge but imagination" -Albert Einstein
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philipma1957
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Activity: 4102
Merit: 7764
'The right to privacy matters'
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October 21, 2013, 11:44:53 AM |
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Regarding power, several motherboards and USB 2.0 hubs have charge ports with >=2 A current. Looking forward to the release of these sticks. Good job!
Charge ports don't provide a data connection usually. They are for just that...charging. So you can plug things into the slots but the OS will not see them. The anker hubs have a port like that. that is why the hubs I picked are better they will allow up to 1.2 amps per port and all ports are data ports. They have far spacing so fitting 6 sticks and a fan should be a breeze. If my psu can do its power rating I would have a nice compact 100gh plus mine using under 130 watts. These sticks still make money at 3 bill difficulty. 100gh of them pulling 150 watts (whole system) at 17 cents a k watt and a diff of 3 billion earn 2.50 usd a day after power costs. |
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Chronikka
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October 21, 2013, 11:57:38 AM |
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Regarding power, several motherboards and USB 2.0 hubs have charge ports with >=2 A current. Looking forward to the release of these sticks. Good job!
Charge ports don't provide a data connection usually. They are for just that...charging. So you can plug things into the slots but the OS will not see them. The anker hubs have a port like that. that is why the hubs I picked are better they will allow up to 1.2 amps per port and all ports are data ports. They have far spacing so fitting 6 sticks and a fan should be a breeze. This is the closest hub I have seen to what I would be looking for. But you will be lucky to get 6 of these running on that hub. More likely 5 + fan is all you will be able to do. 6 of these draw more than 5 amps of current. More than those hubs can provide. And at $30 a hub? I might as well pay a little bit of extra money, buy the anker hub or similar knock off, and get an extra stick or two running on one hub. |
"The true sign of intelligence is not knowledge but imagination" -Albert Einstein
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philipma1957
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Activity: 4102
Merit: 7764
'The right to privacy matters'
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October 21, 2013, 08:08:24 PM
Last edit: October 21, 2013, 09:10:33 PM by philipma1957 |
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Regarding power, several motherboards and USB 2.0 hubs have charge ports with >=2 A current. Looking forward to the release of these sticks. Good job!
Charge ports don't provide a data connection usually. They are for just that...charging. So you can plug things into the slots but the OS will not see them. The anker hubs have a port like that. that is why the hubs I picked are better they will allow up to 1.2 amps per port and all ports are data ports. They have far spacing so fitting 6 sticks and a fan should be a breeze. This is the closest hub I have seen to what I would be looking for. But you will be lucky to get 6 of these running on that hub. More likely 5 + fan is all you will be able to do. 6 of these draw more than 5 amps of current. More than those hubs can provide. And at $30 a hub? I might as well pay a little bit of extra money, buy the anker hub or similar knock off, and get an extra stick or two running on one hub. I disagree I think they will run 6 no problem, but we won't know till the sticks come. THAT IS with the psu attached not the brick that comes with it. |
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guinness
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October 26, 2013, 04:55:54 PM |
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Very very interested this. What payment methods will be available? I have a 200 watt 30A PSU waiting to power my hubs for these. How about a little hint about pricing?  I have some saving to do in the short amount of time til they are ready to ship. |
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elasticband
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Merit: 1000
Nighty Night Don't Let The Trolls Bite Nom Nom Nom
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October 26, 2013, 04:58:40 PM |
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awaiting further details, nice to see production in EU
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Chronikka
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October 26, 2013, 05:39:03 PM |
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I don't know if you guys are aware but ASICMiner is now providing a 49 port usb hub powered by an atx psu. It comes free with a purchase of 50 AM sticks. They are shipping this week. Since its already designed to handle a direct PSU connection I imagine providing enough current for these miners wouldn't be difficult.
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"The true sign of intelligence is not knowledge but imagination" -Albert Einstein
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balanghai
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October 26, 2013, 05:58:21 PM |
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This is a great innovation and huge jump from the typical 333Mh/s to 5Gh/s usb miner. Maybe soon it could be 50Gh/s or more in a tiny usb stick. |
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fractalbc
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October 26, 2013, 06:16:29 PM |
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I don't know if you guys are aware but ASICMiner is now providing a 49 port usb hub powered by an atx psu. It comes free with a purchase of 50 AM sticks. They are shipping this week. Since its already designed to handle a direct PSU connection I imagine providing enough current for these miners wouldn't be difficult.
They require an ATX power supply with 25 amps MINIMUM at 5 volts. That gives 1/2 amp per port with the power supply running flat out. There are a few supplies that offer 30 amps at 5v which are a better match for a full load of erupters. 49 * .85 is just over 41 amps which would want a 50 amp supply and 10 amps per pin that I think are rated at 8 or 9. So, while the ASICMiner hub is a good match for 1/2 amp sticks when paired with a 30 amp supply, I don't think it would be a good match for higher power devices without some creative rewiring. |
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Felipeo (OP)
Sr. Member
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Activity: 476
Merit: 262
EOSABC
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October 27, 2013, 02:25:36 PM
Last edit: October 27, 2013, 03:08:39 PM by Felipeo |
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Summing up the discussion on power spec. One of our mining test that summary you can see in gallery, was running on laptop with USB 3.0 port. So we know that 5+GH/s from device can be easily acquire with normal USB 3.0 spec. To meet customer expectations we will provide sufficient USB 3.0 hubs in our store, that's every one can buy hub and get it in one package with ordered Bi•Fury's, to minimize unnecessary cost. Now we are in negotiations with some producers to provide hubs in good price on right time. First we thinking about Dipol Hub's. But price per port is still very high. For now we are most believe in ORICO A3H10 hub. Price per port is right and quality is very good. Hubs come with 12V4A external power supply, and manufacturer assured us that every port meets the full specification USB 3.0 (5V 900mA). I will update some info about hubs and Bi•Fury sale in next weekend. |
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