Finksy
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November 16, 2015, 12:18:03 AM |
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One thing I'd like to point out, some of the PDU's out there use ratings for continuous load, and don't need to be subject to the 80% rule. For example, some of the HP 4-port 40A PDU's I have use 15A breakers for each circuit, and a 50A breaker and wiring/plug for the voltage feed, so it is rated for 40A continuous (though the wiring and receptacle wired for it need to be 50A rated).
But that doesn't really matter in your case since your wiring is rated for the same 30A, just thought I'd point that out for others or future wiring projects. I agree with everything Phil said, and would imagine you could get 5x S7's on each PDU/circuit without a problem, as you would be at about 25-26A, or maximum 86% load (which may be a little over code, but in my experience as long as ambient isn't too high and wiring isn't buried in a wall, you should be fine). As always, monitor the temperature as you add load and if you feel like the wiring or PDU are getting too warm, take some load off the circuit.
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thebonenz
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November 16, 2015, 03:57:08 AM |
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I would love to know if these can be undervolted in the future I'd really like a couple of these or s7s to just hash at home for a year or so since I live in NZ and doubt I can resell easily.
I thought these were string, so you'd need <12V PSUs. Hmm yeah I've been reading up on this. I really don't think I understand what I was trying to ask. I want to know if they can be under-clocked a little to gain greater efficiency later to keep them worth while running for longer? I am unsure what it means to be in string etc...sorry. the 4.1 was software control under volt & down clock this is software control down clock and psu control under volt. here are two links for psu's that should work: this should do 1 machine at 2000gh and 450- 480 watts at 10 volts https://www.trcelectronics.com/ecomm/pdf/hrp600.pdfthis should be able to do 2 at 2000gh each and 450-480 watts at 10 volts https://www.trcelectronics.com/ecomm/pdf/rsp1500.pdfNO PROOF NO TESTS NO REAL KNOWLEDGE BUT one of the designers said 10 volts is possible. I own the two psu's and I am waiting to get one of these as I have an interest in running them at 10-10.5 volts. Thanks for the clarification! It looks like I need to wait and see. I'm going to be in Toronto and then New York in December was hoping to source some decent hash to take back with me to New Zealand where I will have absolutely nothing available. I know a lot of people do this for money but for me it's a hobby and a way to legitimately back BTC into the future so if I break even someday I'll be stoked enough! So Avalons seem like more fun with an RPI controller and being able to use minera. Should I buy a PDU as well when I'm up there? Is there anything else that I would need?
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Newbie hobby miner who just picked up an S4!
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adaseb
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Activity: 3752
Merit: 1709
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November 16, 2015, 12:38:10 PM |
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So is this the miner that's causing the difficulty to peak at 9% all of a sudden? When were these delivered?
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chalkboard17
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November 16, 2015, 04:36:35 PM |
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I don't care about zoomhash but speaking of the avalon s7: 0.2830j/gh efficiency a6: 0.29j/gh nearly the same s7: 0.3876$/gh a6: 0.3972$/gh also nearly the same im also assuming avalon would be much quieter let us not forget there also is the zoomhash's profit in the equation. i wonder if we can still buy directly from canaan, then it will be much cheaper i guess not to mention that it is impossible to have worst customer care than bitmain
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philipma1957
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'The right to privacy matters'
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November 16, 2015, 04:50:43 PM |
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if they allow for a 10-13 volt psu like this https://www.trcelectronics.com/ecomm/pdf/rsp1500.pdf which would run two on an undervolt and freq down clock they have real value . I am waiting for kilo17 to contact me today as his are due to him today. I will get 2-3 from him and do a long down- clock under-volt review. If you run them at 10 volts using 450 watts and get 2000gh they have a real value increase. we are going to know soon enough. If I have to I will get one from zoomhash.
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toptek
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Merit: 1000
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November 16, 2015, 05:01:49 PM |
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if they allow for a 10-13 volt psu like this https://www.trcelectronics.com/ecomm/pdf/rsp1500.pdf which would run two on an undervolt and freq down clock they have real value . I am waiting for kilo17 to contact me today as his are due to him today. I will get 2-3 from him and do a long down- clock under-volt review. If you run them at 10 volts using 450 watts and get 2000gh they have a real value increase. we are going to know soon enough. If I have to I will get one from zoomhash. let us know : ). glad i asked !!!.
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toptek
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November 16, 2015, 05:05:33 PM |
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I don't care about zoomhash but speaking of the avalon s7: 0.2830j/gh efficiency a6: 0.29j/gh nearly the same s7: 0.3876$/gh a6: 0.3972$/gh also nearly the same im also assuming avalon would be much quieter let us not forget there also is the zoomhash's profit in the equation. i wonder if we can still buy directly from canaan, then it will be much cheaper i guess not to mention that it is impossible to have worst customer care than bitmain Ive never had any issue buying from zoomhash actually had more issue with bitmain in the last few months then anyone , but not to say it won't happen, it more then likely will if i buy more and more from them .
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philipma1957
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'The right to privacy matters'
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November 16, 2015, 07:06:59 PM |
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I don't care about zoomhash but speaking of the avalon s7: 0.2830j/gh efficiency a6: 0.29j/gh nearly the same s7: 0.3876$/gh a6: 0.3972$/gh also nearly the same im also assuming avalon would be much quieter let us not forget there also is the zoomhash's profit in the equation. i wonder if we can still buy directly from canaan, then it will be much cheaper i guess not to mention that it is impossible to have worst customer care than bitmain Ive never had any issue buying from zoomhash actually had more issue with bitmain in the last few months then anyone , but not to say it won't happen, it more then likely will if i buy more and more from them . both bitmaintech and zoomhash have been pretty good to me and sp-tech was pretty good to me. avalon was also pretty good to me. If any of the above 4 would make me a decent offer for gear I would not fear them.
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MarkAz
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November 17, 2015, 06:28:35 AM |
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notlist3d
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November 17, 2015, 06:46:19 AM |
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Isnt the black one the porotype picture? I was thinking silver was production model. I am impressed looking at block C the warranty does transfer it sounds like. Warranty Registration and Transferability: If still within the Warranty Period, Avalon Manufacturer’s Warranty will transfer to the buyer, upon equipment resale provided that the buyer contacts Avalon or BlockC.co to register as the new equipment owner. In order to receive Manufacturer’s Warranty coverage, you must notify Reseller with your contact information, the equipment you are operating, and a description of your operating environment. Bitmain warranty buying from ebay or other places you do not get a transferred warranty.
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MarkAz
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November 17, 2015, 07:46:46 AM |
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I pulled the trigger and ordered one - I want to make a bigger bulk purchase of either these or S7's, so I'd like to see one hands on and get a feel for it before doing it. Assuming it is as they say, and they have it in hand and ship 2nd day, I should get it Thursday or Friday... It's worth paying the premium for me to check it out first, so I'll post my thoughts once I get it - but Kilo17 will get his first so we'll probably hear from him sooner.
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philipma1957
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'The right to privacy matters'
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November 17, 2015, 03:17:32 PM |
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Has there been any mentions if their os works on the pi2 yet or is it just original pi still? Would be a big thing to know which controller you need to buy to run this machine.
As of today they run on the older pi. Kilo17 told me this via pm.
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notlist3d
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November 17, 2015, 04:54:30 PM |
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Has there been any mentions if their os works on the pi2 yet or is it just original pi still? Would be a big thing to know which controller you need to buy to run this machine.
As of today they run on the older pi. Kilo17 told me this via pm. Oh well atleast they are still on amazon for around 30$, I think for non US miners it will be a bit more difficult to get the original pi rather than simply a new one. I do remember seeing they are working on getting it to run on pi2 so I bet the compatibility will come in a couple months. The old PI really is not horrible. I run a old PI on my 3 4.1's and never had an issue. It's not a big hungry program with the OpenWrt being used on it and modified to do the controlling. I just want to see the down clocking. I really hope they will shine here. This is the most important thing with difficulty rising like it has.
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thebonenz
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November 17, 2015, 11:16:04 PM |
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If i run two or three of these from home will I need a PDU? Or is a decent surge board enough?
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Newbie hobby miner who just picked up an S4!
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philipma1957
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'The right to privacy matters'
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November 18, 2015, 12:35:19 AM |
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If i run two or three of these from home will I need a PDU? Or is a decent surge board enough?
What is your voltage? If you are 220-240 A pdu will run 3 maybe 4 on 1 circuit. If you are 110-120 volt 1 unit per circuit means no need for a pdu
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OregonMines.com
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OregonMines Official Account
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November 18, 2015, 01:50:00 AM |
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If anyone was interested in picking one or two up we have them for sale. We have a post for them in the Marketplace under Goods/Computer Hardware.
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OregonMines - Co-located Hosting of Bitcoin and GPU miners. https://www.oregonmines.com - S9 @ $100 / mo, L3+ @ $70 / mo , 4U GPU units start @ $100 / mo in co-location fees. No setup fees. Limited space available today!
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felix73
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November 18, 2015, 04:12:08 AM |
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felix73
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November 18, 2015, 04:28:16 AM |
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Factory producer. From China to Russia 70 kilometers. we buy in the US and take over the ocean? In the US, only the dealer and the factory in China
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felix73
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November 18, 2015, 04:35:50 AM |
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We got only one SFARDS. It was sold to us. Sometimes less gives hesh on sha256, to do ON / OFF
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