Next step is to flash those jallies to 7GH/s
Are there any tutorials on doing that? I've been searching but haven't found any... |
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Nice!!!
1G8zjUzeZBfJpeCbz1MLTc6zQHbLm78vKc
Thank you!
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Nothing rare, but my two little USB erupters arrived today. Set them up on a shelf above my desk with a D-Link DUB-H7 7 port hub I got for $23. I quickly realised that they were reaching 70+ deg C temps when I was setting them up and the 2x 15 watt server fans really help (but they are running at 3.3 volts so they are essentially silent). Miners now get better temps of about 45 deg C (25 deg C ambient) after running for a while. Getting <1% hardware errors in bfgminer I might have to look at that later.
Is there any components on the other side of the PCB? Or is the aluminium heatsink removing heat through the PCB itself? Some micro-sized heatsinks might be in order for the ASIC chip on the top side in any case...
You realize your fans are easily using 6 times (or more) as much power as the USB miners themselves? Those fans are also noisy as FUCK. You can be fine with just a gentle breeze. The USB miners actually don't need any cooling at all. The manufacturer has tested them with zero airflow and even removed the heatsinks (the chunk of metal with the BTC symbol on it) and they still ran just fine with no increase in HW errors. If you really feel you need to run fans, get something slow and quiet. Something that uses very low power. A 240mm fan that only draws 0.8 amps @ 12v will cool 50 usb miners without a problem. As I said they are 12 volt fans running at 3.3 volts. At 3.3 volts they use 0.145 amps each (measured with DMM) = 0.48 watts each. So actually the two miners use about 5x more power than both fans. And as I said they are silent at 3.3 volts. Also the average longevity of the ASIC at ~45 deg C is going to be much better than some at 70+ deg C. Sure the manufacturer tested them but they didn't test them for months continuously nor would they have conducted a long term study of their failure rates vs temp. Given that these miners will probably never pay for themselves (even if they last for years) it makes sense to operate them at lower temps to try and maximize their working life. Also if the ASIC and other components are heating up the entire circuit board (especially with the assistance of the heat spreading 'heatsink' on the bottom of the PCB) while there is no airflow then the other components will also reach unfavorable temps... https://i.imgur.com/QnaIvC7.jpgAOZ1020 - Maximum ambient temperature 85 deg CCP2102 Maximum operating temperature 85 deg CATtiny2313 - Absolute maximum operating temperature 125 deg C74HC574 - Maximum operating temperature 125 deg CIt's not surprising that some of those components could reach the temps above if they are sitting on a PCB thats over 70 deg C, especially the voltage reg which would have to dissipate quite a bit of heat. Also as the spec sheets make clear, many of those devices become unstable at higher temps, often well before their rated limits. Totally right. |
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I need a 3D printer yesterday. So do I!!!!  |
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what did you use to build the rack? I was considering legos, but i like yours. I'd just want to add clearance for my fans.
K'nex... I've been building with them since I was 8  . Much better for structures than legos. Blasphemy! Lego4Life!    Rigs are hotter with Legos. and legos are hotter with rigs And K'nex are always awesome: http://geekalabama.files.wordpress.com/2011/11/74.jpgNo, that is not my build/house, but I have built a few k'nex roller coasters.     |
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Sorry Menig,
Have you considered my request of 2?
Could you PM me the address to send the Bitcoins?
I'll reply with the transaction ID and the address for shipping.
confirmed, shipping to which country ? Portugal Thanks Transaction done. Transaction ID: 874316a152926d91ce017d5683b01b202f79a94e84611659603167c759fde036 I'll PM my address, if it is ok to you. Thank you! |
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Sorry Menig,
Have you considered my request of 2?
Could you PM me the address to send the Bitcoins?
I'll reply with the transaction ID and the address for shipping.
confirmed, shipping to which country ? Portugal Thanks |
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Sorry Menig,
Have you considered my request of 2?
Could you PM me the address to send the Bitcoins?
I'll reply with the transaction ID and the address for shipping.
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https://i.imgur.com/xxZfMUV.jpghttps://i.imgur.com/0m8XehV.jpgNothing rare, but my two little USB erupters arrived today. Set them up on a shelf above my desk with a D-Link DUB-H7 7 port hub I got for $23. I quickly realised that they were reaching 70+ deg C temps when I was setting them up and the 2x 15 watt server fans really help (but they are running at 3.3 volts so they are essentially silent). Miners now get better temps of about 45 deg C (25 deg C ambient) after running for a while. Getting <1% hardware errors in bfgminer I might have to look at that later. Is there any components on the other side of the PCB? Or is the aluminium heatsink removing heat through the PCB itself? Some micro-sized heatsinks might be in order for the ASIC chip on the top side in any case... What a nice Radiometer you have back there! |
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Ok, I'll bite!
JayPal
17hGKSnXwbWW7FC4xz7rLW1MEvw7W9hVvN
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Boa!! Vou por um preço promocional: 1000€/BTC :p
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but thats real live there is no RL, only afk  None of them exist... I always have a keyboard around, including my mobile one... We have to find another expression. Perhaps AFRL (away from real life?) :-P |
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Fica caríssimo comprar desta forma!
Para portugal fica a 421 euros por bitcoin...
Opah, como monto um serviço destes?! PROFIT!!! |
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I'm interested in 2, please, has we spoke in the PM.
Shipping to Portugal, payment in BTC.
Thank you!
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Yeah random.org should have been used How would random.org be used? The op could say "Yes I used random.org and the number was 213" (which could be a sockpuppet's number). Is there a way to verify that random.org was used? BTW, the strategy used by the OP is not random at all (the output is not uniformly distributed). In fact it should be easy to prove that there are certain numbers that *could never have been generated*. Does it matter? It's his BTC to give away. Read the haiku above. Its his BTC and if he really gave it away its pretty cool. But without a proof, its not simply credible enough. Provable security is pretty cool. What the OP should have done is Give the strategy for the random number before data collection is complete. So other users have opportunity to add randomness. That aside, what's more interesting are the comments to use random.org I'd really like to know how it'd work. What if the OP decided that he'd gave !btc to the cutest nickname around? Come on, the rules were on, everyone knew them and the contest has a winner. You can't ask for more, transparent or not. Would you be happier if instead of having a contest, using random.org or other method, he just gave the btc to someone he knew without even promoting the opportunity for the rest of us?! And I also question all those who still post addresses like mad here: have you already read the post?! What part of ended didn't you all understood?! Come on! You should be thankful, not questioning! That's a complete nonsense! |
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Yeah random.org should have been used How would random.org be used? The op could say "Yes I used random.org and the number was 213" (which could be a sockpuppet's number). Is there a way to verify that random.org was used? BTW, the strategy used by the OP is not random at all (the output is not uniformly distributed). In fact it should be easy to prove that there are certain numbers that *could never have been generated*. Does it matter? It's his BTC to give away. Read the haiku above. +1 |
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give me free btc  Give me free US Dolars!! |
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Congratulations, tomman!!! And thank you, robbert5!!! People who complain about it; though titty.
It is Robbert's money so he decides. Simple.
If you feel you can do better; by all means,
start a thread and give away 1 BTC your way.
Totally agree! |
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The Portuguese number is no longer working.
It says "Invalid or non existent number".
Could you confirm this, please?
Fixed! Portugal works again. Thank you!! |
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If you're building a large rig and you DON"T have a bag of at least 1,000 zipties, you're doing it wrong.
So true lol. I keep a stock pile of Zip ties around in case I get in the mood to do a little rearranging/house cleaning. I think every GPU in my farm has at least 2-3 zip ties each in some shape, form, or fashion. Forget zip ties... [img ]http://upload.wikimedia.org/wikipedia/commons/thumb/8/89/Duct-tape.jpg/300px-Duct-tape.jpg[/img] If this doesn't solve it, than nothing will. And leave a sticky residue all over the place? Good luck selling a GPU with glue all over the plastic shroud. Doesn't affect performance, but nobody's going to touch that. Of course not!!! I was joking! Although, I'm quite surprised that no brightened mind had come up with a picture proud of gluing the cards to somewhere using duct tape...  |
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