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Author Topic: Avalon 8 official specs released  (Read 9416 times)
ccgllc
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June 07, 2018, 03:45:35 AM
Last edit: June 08, 2018, 01:21:43 AM by frodocooper
 #341

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.

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NotFuzzyWarm
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June 07, 2018, 04:22:12 AM
 #342

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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June 07, 2018, 02:08:25 PM
 #343

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.

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June 22, 2018, 10:32:30 PM
 #344

has anyone tried overclocking these? I know Steve mentioned they should be capable of going up to 16TH or so.
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June 22, 2018, 11:56:37 PM
 #345

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

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June 23, 2018, 02:25:24 PM
Last edit: June 23, 2018, 08:54:24 PM by frodocooper
 #346

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

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.
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June 23, 2018, 06:07:59 PM
Last edit: June 23, 2018, 08:54:57 PM by frodocooper
 #347

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.

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July 05, 2018, 01:35:38 AM
 #348

Anyone hear on news for the new batch of miners yet?  Or is it unlikely until winter months?
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July 07, 2018, 06:23:14 PM
 #349

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).

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October 16, 2018, 05:33:59 PM
Last edit: October 17, 2018, 12:14:08 AM by frodocooper
 #350

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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October 16, 2018, 06:02:18 PM
 #351

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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October 16, 2018, 06:34:21 PM
Last edit: October 16, 2018, 07:44:11 PM by NotFuzzyWarm
 #352

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.

For bitcoin to succeed the community must police itself - Joshua Zipkin aka Joshua Alexander leaked AMT A1 miner skype chats
How a miner mfgr SHOULD operate: HaggsFIN trip to Canaan My info useful? Donations welcome! 1Fuzzyk398kDWVjuC5qPX5v6CjSkvbgAbd
-Support Sidehacks miner development. Donations to:   1BURGERAXHH6Yi6LRybRJK7ybEm5m5HwTr
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October 16, 2018, 06:53:02 PM
 #353

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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October 16, 2018, 07:52:48 PM
Last edit: October 17, 2018, 12:15:10 AM by frodocooper
 #354

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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November 30, 2018, 01:04:26 AM
Merited by HagssFIN (1), Steamtyme (1)
 #355

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.

OpenWrt firmware

AvalonMiner 821: https://canaan.io/downloads/software/avalon821/openwrt/20181128/
AvalonMiner 841: https://canaan.io/downloads/software/avalon841/openwrt/20181128/
AvalonMiner 851: https://canaan.io/downloads/software/avalon851/openwrt/20181126/

MM firmware

AvalonMiner 821: https://canaan.io/downloads/software/avalon821/mm/2018-11-26/
AvalonMiner 841: https://canaan.io/downloads/software/avalon841/mm/2018-11-26/
AvalonMiner 851: https://canaan.io/downloads/software/avalon851/mm/2018-11-26/

There is no changelog for the OpenWrt firmware at the time of writing.

The changelog for the MM firmware simply states "support for low power."
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November 30, 2018, 01:29:41 AM
 #356

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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November 30, 2018, 02:08:48 AM
 #357

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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November 30, 2018, 02:35:50 AM
 #358

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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November 30, 2018, 05:57:15 AM
 #359

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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November 30, 2018, 10:43:10 AM
 #360

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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