Who knows maybe having it that tight is best for cooling?
It is. If you think of gaps like a hollow pipe, the air closest to the wall is doing your cooling but then there's a core of air which contributes very little and passes though. The more space you have the more of these deadspots you get. This was evidence on the V1 ASICMiner Tube / Prisma which would waste a lot of their airflow. |
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Thanks for another great guide.
Has anyone had luck with knocking the noise level down on these beasts.
My long term feedback to Bitmain was always about cooling and tbh they've already achieved near the best they can given their board and chip structure. I don't know how else you can improve it without - as NotFuzzyWarm - suggests, dismantling stuff. |
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Hello! I've performed a FW upgrade and now I see the middle row (chain 7) but I've got an x under temp and still the hash rate there is 0.
Board is still dead and nothing really changed. Still proceed with RMA. And another thing (becouse I am verry lucky) I've updated the others to the latest FW version and I cannot acces one of them... The upgrade went well, but I can't see it's IP and cannot connect to the web interface.
Have you tried holding down the reset button the controller? As long as the firmware update went fine, the S9 should hop back to DCHP as it was when it shipped. Do you know if I can flash the antminer S9 from SD card?
Instructions for S2+ are here, although the file doesn't specifically mention the S9 its the right technique at least. If you can find an s9.img then those are the instructions you need. |
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No worries? please be sure.  Yes. On the reset cycle they make it go up and down in fan rate to clear dust. |
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Help please.. I hope I'm posting in the correct thread.
I have a Antminer S7-F1 4.73th (Upgraded to 2fans), what does it mean if I heard one of the fan or both fan speed (I'm not sure) went up and down, up and down. and it showed a very low hashing speed. and cold temps? but it went back to normal when I rebooted it. Does it mean a problem is on its way? Will it cause fire and burn? Do I have to worry?
Your professional advice is appreciated. thank you.
Fan cycling is part of the restart process and can be triggered with a temporary loss of internet connection. There is no issue and nothing to worry about. |
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Absolutely yes please. If someone is that bad that they have to be permabanned then the words that got them there should be disclaimered with that permabanned tag.
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1. Unplug modules until you find the bad one.
2. Try that module on a different controller port (shift the white ribbon cable over)
3. If no luck, RMA the board with Bitmain as there's little we can do for this.
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Stop with the strawmen and recognize the real problems. A serious lack of communication when it comes to warranty service.
No, its not. Bitmain can't break privacy to counteract the OP's points so he's free to lie and make them look bad when in fact he's not even remotely correct. Bitmain HAVE engaged with him, and now he's just spamming a sob story to try and force them to do something. |
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Holy crap that's terrible business practises. This is to a huge Customer too, use little guys don't stand a chance. If you buy 1 miner and it takes at least a month to finally get it fixed that's just a waste of time, effort and cold hard cash!
Okay so the tldr of this thread is he's been reselling S9 hardware under the name of Bitmain like he's a distributor - which he is not. Some of the item have died however he's sold the items and so the warranty is not transferred. He's specifically not mentioning it to act like Bitmain is the bad guy and get people on his side but in reality he has zero claim and regardless of the warranty situation is also doing the wrong thing! |
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Hello dogie I need your help , do you have the SD boot for spondoolies sp31 and sp35? can you give me the link?
I don't believe there are any more specific ones, I'm not sure. |
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If they daisychain like the Avalon4/6 you could buy one controller for like 50 units if you had USB hubs and such.
And they have really, really good mine-level software to go along with it. |
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I am going to pick one of these up off eBay (I know they are way out of date). But I wanted to know a few things first: - Do they have Variable Speed fans that run faster/slower depending on temperature?
- Are they Plug-and-Play with BFGMiner on Windows 7?
- What temperature do they typically run at?
- What is the HW Error percentage? My Butterfly Labs 60 GHz has about 0.60% HW Errors.
- How loud are they compared to a Butterfly Labs 60 Ghz ASIC?
Fixed Yes I dont think you get temp reporting yes 1% maybe, all are around th esame. No idea |
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I've had at least 20 Avalon6 come through hosting (most are still here), with two bad boards total. In about half as much time I've had around 25 S9 come through hosting with 4 bad boards total. I'm honestly surprised it's not higher than that. They do cost more, but there's something to be said about reliability (and, you know, customer service when something does go wrong).
Not sure you can directly compare those 2. 20 Avalon6= 40 boards 25 S9s = 75 boards Avalon6 board failure rate: 5% S9 board failure rate: 5.3% Failure rate per miner is higher on S9 though. It's also in less than half the time, and during a lot cooler period overall so it should have been easier on the works. Bathtub failure curve so as long as you're say a month in, you've likely covered most of the initial failures. |
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No returns for refund.
Were you expecting some sort of trial period on a miner? |
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I've had at least 20 Avalon6 come through hosting (most are still here), with two bad boards total. In about half as much time I've had around 25 S9 come through hosting with 4 bad boards total. I'm honestly surprised it's not higher than that. They do cost more, but there's something to be said about reliability (and, you know, customer service when something does go wrong).
Not sure you can directly compare those 2. 20 Avalon6= 40 boards 25 S9s = 75 boards Avalon6 board failure rate: 5% S9 board failure rate: 5.3% Failure rate per miner is higher on S9 though. |
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And assuming a 5% difficulty change, free power, a 1% pool fee it would take over 400 days to break even.
Also assumes your miner is worth 0 after, which is never true. If its worth $300 still after 200 days, its break even is 200 days. If you can value it higher, you can break even soon. |
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The domain seems to have the same owners.
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Only 1 out of 2 of the cards are hashing though. Any suggestions?
Likely premature death; these boards do not last long. If you can't get it started at a much lower clock speed then probably best to unplug it from the PSU and controller and leave it be. Not going to be worth your time and a 500W 24/7 heater will likely be plenty. |
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Sorry, I'm just one guy and I've already discussed three distinct design projects for miners, on top of everything else I've got going on.
Now if I end up able to make the S1 refit boards, four of those on a C1 chassis would probably hit 1000W. Or pack 'em in a rack case and hub 'em together for like 2KW. You know, whatever. But a standalone 1000W miner is not on my list.
A S1 refit or any 250W board would be sweet. Is there really that many S1s still floating about? |
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