Tweak the efficiency of your Avalonminer 821 / 841 / or 851
Canaan has just released a new firmware for the Avalon 8 series which brings better Efficiency. The miner will be underclocked and the powerconsumption can be reduced by up to 30%. The hashrate will decrease aswell, but all in all efficiency will be better. That’s what matters in the times of high electricity costs and cheap hardware prices.
Every model has different firmware for the machine itself and the controller&Raspberry Pi, you can find the download links :
AvalonMiner 821: https://canaan.io/downloads/software/avalon821/openwrt/20181223/
AvalonMiner 841: https://canaan.io/downloads/software/avalon841/openwrt/20181223/
AvalonMiner 851: https://canaan.io/downloads/software/avalon851/openwrt/20181223/
AvalonMiner 821: https://canaan.io/downloads/software/avalon821/mm/2018-12-22/
AvalonMiner 841: https://canaan.io/downloads/software/avalon841/mm/2018-12-22/
AvalonMiner 851: https://canaan.io/downloads/software/avalon851/mm/2018-12-22/
You need to update the machines MCS firmware and also reflash your controller image to make sure the controller detects the newly configured miner.
Here is a guide on how to reflash your avalonminer controller: GUIDE