mikeywith
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August 13, 2020, 11:12:38 PM
Last edit: August 14, 2020, 01:17:27 AM by frodocooper |
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At what wattage was this able to run at? I have to admit I am always intrigued in turning older miners into quiet low wattage lottery devices for the solo pool!
It's doable, but I wouldn't say applicable for all old miners, the miner firmware needs to be customizable because almost all stock firmware on all different mining gears restrict the frequency and voltage you can use, at best they will give you a few options to select from like "Low-Power-Mode" or a set of fixed frequencies to chose from. With that being said, the S9 is an exception (T9 as well since they use the same control board) using a custom firmware wether it's Braiin's or Vnish (the former is open-source and free) gives you the ability to downclock the S9s to a very low specs and that will make it run somehow quite and power efficient, however not to the extent where you can place it next to your bed, but with a few physical modifications you can reduce the noise significantly, you should check this topic. |
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Artemis3
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CLEAN non GPL infringing code made in Rust lang
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September 06, 2020, 04:31:18 AM
Last edit: September 07, 2020, 12:06:55 AM by frodocooper |
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[...]
With Braiins OS+ you just use powerlimit 600* to achieve the same. There are people using all 3 boards with a single fan, with powerlimit set to 900 claiming to be very quiet, so there is a lot of room to improve if you switch to the autotuning algorithm which Braiins OS+ provides rather than use manual settings. * While it says 600 (watts), this value always assumes 3 boards so its always treated n/3 even if you have two or one board. A feature has been requested to treat them individually. In the meantime 600 / 3 = 200 which is what you want. You could also go lower but won't go realistically do lower than about 100w per board. I tried a single board and it kinda tries to use even lower speeds for about 90w or so, but it works fine producing about 1TH/s or such. And yes, i pointed that to solo.ckpool.org to verify stats. Remember any evaluation regarding autotuning has to wait until the board reports "Stable", let it work until the end before measuring. |
█████████████████████████
██████████████████████████
██████████████████████████
███████████████████████████ | BRAIINS OS+| | AUTOTUNING
MINING FIRMWARE| | Increase hashrate on your Bitcoin ASICs,
improve efficiency as much as 25%, and
get 0% pool fees on Braiins Pool | |
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gt_addict
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September 21, 2020, 07:37:49 PM
Last edit: September 22, 2020, 02:20:10 AM by frodocooper |
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Seeing as this is the space heater thread, I thought I would post mine:- S9 13.5Th, single fan, dust filter on the front, custom cables, side mounted psu thanks to a side panel from another S9 chassis. Also an RJ45 wifi bridge with wide range voltage input so can work over wifi and be powered from the psu directly. Running Braiins OS and getting 9.6Th at 760w at the wall. If my math is correct its 79w/Th which isnt too bad.   |
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philipma1957
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September 22, 2020, 12:03:29 AM
Last edit: September 22, 2020, 02:20:56 AM by frodocooper |
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Is the fan a push or a pull?
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gt_addict
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September 22, 2020, 06:12:54 AM |
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Is the fan a push or a pull?
Its pulling from front to back. |
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philipma1957
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September 22, 2020, 11:57:31 AM
Last edit: September 23, 2020, 12:20:34 AM by frodocooper |
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Good to know.
I often wonder if push from back to front is better or pull from front like you have.
I have a 1 fan rig with custom s9 different chips more efficient .
it does 16th and 880 watts.
I push back to front with no front fan.
To make this work correctly I took a dead 120mx120mmx25mm fan cut out the blades and used it as a spacer.
The push then worked really well.
It is a nice little rig. But the custom boards are fuck you to solo.ckpool and to mmpool.
which are the pools I would want to use it to.
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gt_addict
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September 22, 2020, 12:17:07 PM |
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I was wondering if a spacer between the fan and the chassis might help things a little even in the orientation I have it.
I would love to have the boards you have but I remember you saying the MOQ was 600 boards which was a bit of a joke really.
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philipma1957
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September 22, 2020, 04:56:46 PM |
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I was wondering if a spacer between the fan and the chassis might help things a little even in the orientation I have it.
I would love to have the boards you have but I remember you saying the MOQ was 600 boards which was a bit of a joke really.
yeah I have the one piece set low works nice. If you have a dead 120x120x25 fan just cut the center out leaving the 120x120x25 frame as a spacer. works a charm for me. |
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NotFuzzyWarm
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September 22, 2020, 08:22:37 PM
Last edit: September 23, 2020, 12:21:41 AM by frodocooper |
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It is a nice little rig. But the custom boards are fuck you to solo.ckpool and to mmpool.
I'm curious - do those boards have ASICBoost? If they do are they able to use AB on other pools? |
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philipma1957
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September 22, 2020, 11:00:23 PM
Last edit: September 23, 2020, 12:21:10 AM by frodocooper |
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they say they do. not sure if that is the only way it mines which is why they won't mine on solo.ckpool and mmpool.org.
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bmoscato
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September 23, 2020, 08:06:07 PM |
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they say they do. not sure if that is the only way it mines which is why they won't mine on solo.ckpool and mmpool.org.
I'm sorry for my ignorance, but are you saying that the BRAIINS OS is no good on CKPOOL and MMPOOL, or that they just do not take the boost into consideration? |
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philipma1957
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September 23, 2020, 08:22:43 PM
Last edit: September 24, 2020, 12:06:59 AM by frodocooper |
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no. I have the exotic special s9 boards 3 of them they are very picky to mine various pools. you need not be concerned about the three boards as they are not using braiins they are pretty darn nice upgrade and will run an s9 shell an s9 controller at 16,5th and around 860 watts but I had one of the few in the USA. the builder wanted me to buy 600 boards as a minimum which is out of my league this is the thread: https://bitcointalk.org/index.php?topic=5253561.0I would have loved to get these a year or so ago. |
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mikeywith
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September 23, 2020, 09:17:43 PM
Last edit: September 24, 2020, 12:07:28 AM by frodocooper Merited by vapourminer (1) |
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Also an RJ45 wifi bridge with wide range voltage input so can work over wifi and be powered from the psu directly...
Nice work you got, regarding the Wireless to LAN bridge, have you looked for something that has POE? they are pretty darn nice upgrade and will run an s9 shell an s9 controller at 16,5th and around 860 watts
but I had one of the few in the USA. the builder wanted me to buy 600 boards as a minimum which is out of my league
Have you contacted them recently to see if they have dropped their MOQ and/or price? I believe with the resent diff jump as well as price drop they might have become a bit more flexible with these hash boards, I would love up upgrade 30-30 of my S9s if the price is right, I certinally wouldn't take 600 of them. |
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gt_addict
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September 24, 2020, 03:43:11 PM |
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I looked into POE but with limited sockets in my house it wasn't worth the extra expense to set up a whole system. The lan bridge was only £12 and works great all over the house so in my eyes it was a great buy.
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HagssFIN
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September 24, 2020, 05:31:44 PM |
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^ Guys, I think you mean Power Line Communication,
not PoE ?
PoE is for powering devices with 48VDC power supply via an ethernet cable (Data+Power).
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gt_addict
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September 24, 2020, 05:51:47 PM |
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^ Guys, I think you mean Power Line Communication,
not PoE ?
PoE is for powering devices with 48VDC power supply via an ethernet cable (Data+Power).
That would make more sense actually. I didn’t even think of that option when I was looking into how to make the heater more moveable. |
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philipma1957
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September 24, 2020, 06:05:35 PM
Last edit: September 25, 2020, 02:14:50 AM by frodocooper |
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Have you contacted them recently to see if they have dropped their MOQ and/or price? I believe with the resent diff jump as well as price drop they might have become a bit more flexible with these hash boards, I would love up upgrade 30-30 of my S9s if the price is right, I certinally wouldn't take 600 of them.
I could check emails and see if he would sell less. |
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BBitcoin92
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January 11, 2021, 09:43:28 PM |
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WOW!!!
What a great thread, i literally came on here as i have an S9 case/board/controller/fans/Bitmain psu and was looking to build a something of low power and less loud as just having it standard with one card in middle slot with above parts.
I want to reduce noise/power mainly.
So fans would need replacing i presume are they are WAY overpowered to cool just one board?
Plus the APW3++ PSU makes a racket and @ 1600w is not needed for around 4-5Th/one board miner.
Has anyone ever considered this? Replacing fans and psu to achieve this goal?
Thanks
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gt_addict
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January 11, 2021, 11:02:19 PM |
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Change the fan to Delta AFB1212SHE (I think). Single fan will be fine. You will need to change the firmware. Braiins OS works fine. You will need Braiins OS+ to be able to set a power usage figure. I have mine set to 775w now and it gets 10Th. Change the psu to whatever psu you like aslong as it has the right amount of PCIE cables. Personally the HP common slot supplies with appropriate breakout board abs cables works well.
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philipma1957
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January 12, 2021, 02:05:40 PM
Last edit: January 12, 2021, 11:10:30 PM by frodocooper |
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Yeah I have one running in my spare bedroom. This one is July 2019 Bitmain firmware set to lowest setting using an evga bronze psu. I used inspect option to set fans to 1900 speed Spimply was too lazy to burn a braiins sd card and make it that way. I did sell more then 1 unit with 2 boards and 1 fan running braiins. as braiins lets you run with 1 fan I also sold more then 1 unit with 1 board and 1 fan running braiins. Braiins is better for these space heaters than stock July 2019 bitmain firmware.  |
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