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.

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

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.

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

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

Thanks

Awesome, Thank you!

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

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.

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