(Review/Guide) AvalonMiner 821 11.0 Th/s, 1200W Bitcoin (SHA-256) ASIC miner

HagssFIN

legendary

Activity: 2422

Merit: 1706

Electrical engineer. Mining since 2014.

@deusopus
Sorry for a late reply, I'm not too frequently active here nowadays.
Can you post your Cgminer API log? And I mean the full log one (there was a tick box or something to choose less or more detailed log).

deusopus

jr. member

Activity: 56

Merit: 1

hello,
great thread. i've been running some 821s that i inherited from a guy for about a year and i decided to point them at a different pool for shits and giggles and corrupted my controller. now i need to reset my controller, i think i have it mostly i used the following links to get the image...

https://download.canaan-creative.com/avalon821/openwrt/

anyways, now i have the controller setup but im only getting a small amount of hashing. i think it has to do with the "more options" setting in the cgminer tab?

can someone corroborate this? i observed some settings there before i lost my last controller setup. can someone tell me how to tweak it out?

i've got three 821s and ive got them daisy chained under one worker and im using braiins pool. i was getting them to scream before and i was able to get reported hashrates close to 50TH/s

please can someone help me walk through the situation and reset my setup.. here is a view of my mining operation
https://youtu.be/YMr9G21jbUM?si=wDbpbJlg25bmTNPz

goose72

newbie

Activity: 26

Merit: 3

Does anyone know what is the lowest setting on the 821? I just tried playing with --avalon8-voltage-level 1-5 with no luck.
I know on low power you get about 9TH but the temps are still too high and was trying to get lower if possible.

Thanks

goose72

newbie

Activity: 26

Merit: 3

Quote from: Seph213 on March 20, 2020, 11:08:35 AM

Hello

i'm looking for some auc3 cables , did these ones https://www.amazon.com/Uxcell-a14061000ux0624-Female-Jumper-Connector/dp/B00O9Y80AK work well for you ?

Yes they did, work perfect.

philipma1957laptop

jr. member

Activity: 38

Merit: 3

Quote from: Seph213 on March 20, 2020, 11:08:35 AM

Hello

i'm looking for some auc3 cables , did these ones https://www.amazon.com/Uxcell-a14061000ux0624-Female-Jumper-Connector/dp/B00O9Y80AK work well for you ?

They are good.

Seph213

member

Activity: 124

Merit: 13

Hello

i'm looking for some auc3 cables , did these ones https://www.amazon.com/Uxcell-a14061000ux0624-Female-Jumper-Connector/dp/B00O9Y80AK work well for you ?

philipma1957

legendary

Activity: 4102

Merit: 7765

'The right to privacy matters'

yeah if it does not work just flip one end as most likely you plugged one end in wrong.

goose72

newbie

Activity: 26

Merit: 3

Thank you Philipma1957 I ordered the ones you use, they seemed easier and the right length.

philipma1957

legendary

Activity: 4102

Merit: 7765

'The right to privacy matters'

here is a kit with

2x 2
2x 3
2x 4
2x 5
2x 6

https://www.amazon.com/XLX-10PCS-Cable-Double-end-XH2-54mm/dp/B076HK1W1Q

I use these

https://www.amazon.com/Uxcell-a14061000ux0624-Female-Jumper-Connector/dp/B00O9Y80AK

goose72

newbie

Activity: 26

Merit: 3

Awesome, Thank you!

HagssFIN

legendary

Activity: 2422

Merit: 1706

Electrical engineer. Mining since 2014.

No problem.

I assume that you have the AUC3 Converter, but no cable.

If there is no original cable available to buy, you can make your own by using a generic 2.54mm pitch jumper cable.

Here is an example https://www.makerstore.com.au/product/elec-ff-jump-10/

You must do a straight connection from a pin to pin.

goose72

newbie

Activity: 26

Merit: 3

Sorry to revive an old post but does anyone know where to pick up some 5-pin AUC3 cable?

Thanks

AndyM456

newbie

Activity: 15

Merit: 0

Just to say to HaggsFin thanks for the link to cryptouniverse. Picked up a few Avalons and happy with their service and their price.

AndyM456

newbie

Activity: 15

Merit: 0

Many thanks for the quick answer. Sorcerer it will be, I will look at the EU supplier, thanks for the link.
The 2880 were great but having not bought any for 3 years am shocked by the big price increase (They were 35 USD each when I got them in 2015), now makes more sense to get something dedicated like the Sorcerer so no need for breakouts/PCIE cables etc.
All the best
Andy

HagssFIN

legendary

Activity: 2422

Merit: 1706

Electrical engineer. Mining since 2014.

@AndyM456
Thanks.

Yep. I would like to say that please don't buy a ATX psu.

My two good choices that I can recommend for both A821 and A841:

Canaan Creative - Sorcerer PSU 1600W power supply unit. You can buy this from an official Canaan partner/distributor. https://canaan.io/official-distributors/
Dell/Delta Electronics/Lite On - DPS 1200 MB 1400W server power supply kit - https://www.deepinthemines.com/collections/power-supplies/products/bitmain-antminer-d3-s7-s9-94-platinum-1400w-psu-power-supply-complete-kit-220v-240v

If I understood you right and you are located in Europe,
I can definitely recommend you this Canaan partner in Vienna, Austria (EU area): www.cryptouniverse.at

NotFuzzyWarm

legendary

Activity: 3612

Merit: 2506

Evil beware: We have waffles!

The sorcerer's work great. The fans higher pitch is noticeable over the miners but not bad. I have 6 and so far zero problems though of course the PSU has only been out less than a year.

AndyM456

newbie

Activity: 15

Merit: 0

Thanks for the great review, I read it and have just ordered some 821s. How are the Sorcerer PSU that Canaan provide, not fussed about noise more about how reliable they are. Have been using 2880 but cannot get the breakout boards from J4bberwock anymore in Europe so want to change to "normal" PSU.
Was thinking of either Sorcerer or some standard Corsair or Seasonic ATX PSU.
Any advice welcomed.
Thanks
Andy

HagssFIN

legendary

Activity: 2422

Merit: 1706

Electrical engineer. Mining since 2014.

https://canaan.io/product/avalon-821-841-bundle-qty-40-shipping-now-100-per-thash/

There is now a great Th/s price deal for guys interested in buying 40 or more miners.

40 x Avalon 821
4x Avalon 841
3 x AvalonMiner Controller

$44000 USD

Thetaj

full member

Activity: 402

Merit: 116

Quote from: HagssFIN on March 21, 2018, 03:34:34 AM

I have received a A841 sample unit from Canaan and I'm working on the review for it.

Darn, here I was hoping that I'd be able to do some reviewing (although reading all your past reviews, I think you'll do a far better job than me, lol)

Moderator's note: This post was edited by frodocooper to update the quoted post from HagssFIN.

HagssFIN

legendary

Activity: 2422

Merit: 1706

Electrical engineer. Mining since 2014.

I have received a A841 sample unit from Canaan and I'm working on the review for it.

Moderator's note: This post was edited by frodocooper to remove an off-topic portion of the post.

Topic: (Review/Guide) AvalonMiner 821 11.0 Th/s, 1200W Bitcoin (SHA-256) ASIC miner (Read 2776 times)