ccgllc
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Math doesn't care what you believe.
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June 07, 2018, 03:45:35 AM
Last edit: June 08, 2018, 01:21:43 AM by frodocooper |
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Well you said -1 does not work.
And you said 0 does not work.
So trying -2 first with chains as they are is different combination to try
Trying -2 with a shorter chain is a second different thing to try.
My assumption for -2 is a heat issue causes the issue
My assumption for chains of three is second choice
Thanks for explaining your logic. Alas, heat was not the issue - this happened on one of our cooler days. |
Mined for a living since 2017. Dabbled for years before that.
Linux admin since 0.96 kernel and Slackware distributions on (4) floppies...
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In order to get the maximum amount of activity points possible, you just need to post once per day on average. Skipping days is OK as long as you maintain the average.
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NotFuzzyWarm
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June 07, 2018, 04:22:12 AM |
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Tried changing the wall wart feeding the RasPi? Make sure it is rated at 2.5A or more so it has capacity to feed all UAC's and their strings. Also, this really should be in the Avalon Troubleshooting & Repair thread... |
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ccgllc
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Math doesn't care what you believe.
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June 07, 2018, 02:08:25 PM |
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Tried changing the wall wart feeding the RasPi? Make sure it is rated at 2.5A or more so it has capacity to feed all UAC's and their strings. Also, this really should be in the Avalon Troubleshooting & Repair thread... Ah, hadn't spotted that thread - sorry. No, I haven't changed them the wall warts - using the ones that came with the Pi 3s, all of which are rated at 2.5A. Only running (3) AUCs, not (4) per controller as well. |
Mined for a living since 2017. Dabbled for years before that.
Linux admin since 0.96 kernel and Slackware distributions on (4) floppies...
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richdmz
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June 22, 2018, 10:32:30 PM |
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has anyone tried overclocking these? I know Steve mentioned they should be capable of going up to 16TH or so.
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Shazam!!!
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June 22, 2018, 11:56:37 PM |
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has anyone tried overclocking these? I know Steve mentioned they should be capable of going up to 16TH or so.
Check the posts in the Hardware section. I know in one of them, frodocooper, posted Canaan's documentation on "extra options" for clocking. Personally, on a hot day 90°f and above, my 841's push ~14TH/s with no adjustments. However, they also draw more power as a result. Goodluck!!! Edit: it was this thread. Ha!!! https://bitcointalk.org/index.php?topic=2616205.msg37085708#msg37085708 |
Click these links to learn some truth about Big Corporate mining pools stealing your money and centralizing BTCitcoin!!! Help support the BTCitcoin community!!! Mine your BTCitcoin at a non-Corporate pool!!! BTC: 1ShazamjsPnpWDNnk3n2tAiKGMdXaSjay |
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richdmz
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June 23, 2018, 02:25:24 PM
Last edit: June 23, 2018, 08:54:24 PM by frodocooper |
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Check the posts in the Hardware section. I know in one of them, frodocooper, posted Canaan's documentation on "extra options" for clocking. Personally, on a hot day 90°f and above, my 841's push ~14TH/s with no adjustments. However, they also draw more power as a result. Goodluck!!! Edit: it was this thread. Ha!!! https://bitcointalk.org/index.php?topic=2616205.msg37085708#msg37085708thanks for linking. I saw the commands but assume it is a combination of commands like adjusting voltage and frequency. I need to setup a test machine and try some. |
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Shazam!!!
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June 23, 2018, 06:07:59 PM
Last edit: June 23, 2018, 08:54:57 PM by frodocooper |
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thanks for linking. I saw the commands but assume it is a combination of commands like adjusting voltage and frequency. I need to setup a test machine and try some.
That's exactly what they are. Many people here were de-clocking frequency and voltages, to help lower their temps. However, I believe that same logic could be used to overclock. Instead of going negative to lower, move them positive to increase chip speeds. |
Click these links to learn some truth about Big Corporate mining pools stealing your money and centralizing BTCitcoin!!! Help support the BTCitcoin community!!! Mine your BTCitcoin at a non-Corporate pool!!! BTC: 1ShazamjsPnpWDNnk3n2tAiKGMdXaSjay |
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fccs
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July 05, 2018, 01:35:38 AM |
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Anyone hear on news for the new batch of miners yet? Or is it unlikely until winter months?
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ccgllc
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Math doesn't care what you believe.
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July 07, 2018, 06:23:14 PM |
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What is the payback of this miner at the current moment with the current complexity?
I'm earning about $1/day/841 after I subtract my electrical cost (about $0.08/kwh). |
Mined for a living since 2017. Dabbled for years before that.
Linux admin since 0.96 kernel and Slackware distributions on (4) floppies...
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acetraderirl
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October 16, 2018, 05:33:59 PM
Last edit: October 17, 2018, 12:14:08 AM by frodocooper |
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Just bought a Avalon 821 and it's not linking up with my other avalon 741's? Even tried it on it's own AUC3. Anyone know the reason? Goes from blue to green back to blue?
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HagssFIN
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Electrical engineer. Mining since 2014.
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October 16, 2018, 06:02:18 PM |
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Please setup the A821 with a own separate Raspberry Pi controller, AUC3 Converter and AUC3 Cable.
And install the latest A821 OpenWrt firmware.
See my review/guide for more.
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NotFuzzyWarm
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October 16, 2018, 06:34:21 PM
Last edit: October 16, 2018, 07:44:11 PM by NotFuzzyWarm |
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Just bought a Avalon 821 and it's not linking up with my other avalon 741's? Even tried it on it's own uac 3. Anyone know the reason? Goes from blue to green back to blue?
Um, perhaps read the 1st few pages of this thread? The A8xx uses different controller firmware than the A7xx series and the 2 versions are not compatible... A821 controller image is here: https://canaan.io/downloads/software/avalon821/openwrt/20180305 from there pick which flavor of RasPi you are using and burn the image to the controller sd card. |
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mgoz
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October 16, 2018, 06:53:02 PM |
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If running on a separate controller with 821 firmware doesn't work, you may have a bad AUC3 cable. My 821 came with a bad cable. Converter would light blue/green, but miner would stay in idle status.
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philipma1957
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October 16, 2018, 07:52:48 PM
Last edit: October 17, 2018, 12:15:10 AM by frodocooper |
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and last but not least a bad auc is possible
but in your case 741 can not and will not run 821
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Steamtyme
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November 30, 2018, 01:29:41 AM |
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That's promising. I'll have to give it a go for the 841 it would be interesting to see if this can be combined with the previously found efficiency settings playing with the voltage.
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minefarmbuy
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We are not retail.
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November 30, 2018, 02:08:48 AM |
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Is there an easy way to know what model Pi the canaan controler I have is? I didn't get mine recently and noticed they list the Pi3 currently.
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frodocooper
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November 30, 2018, 02:35:50 AM |
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Is there an easy way to know what model Pi the canaan controler I have is? I didn't get mine recently and noticed they list the Pi3 currently.
Yes. Log in to your Controller and you'll find its hardware model in the "Model" field under the "System" heading of the "Status" page (which is the first page you'll see when you log in). |
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W15ER69
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November 30, 2018, 05:57:15 AM |
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Canaan has released new OpenWrt and MM firmware for the A821, A841, and A851. They claim in an email (the same email that announced their flash sale) that the new firmware improves efficiency to up to 85 W per TH/s.
Hello, i upgrade MM firmware, plz help, how i can upgrade OpenWrt? |
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frodocooper
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November 30, 2018, 10:43:10 AM |
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Hello, i upgrade MM firmware, plz help, how i can upgrade OpenWrt?
You'll have to flash the relevant OpenWrt image to your Controller's SD card. These instructions should help get you going. ( Etcher is a good alternative to Win32 Disk Imager if you're not using Windows.) |
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