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Author Topic: Avalon 8 official specs released  (Read 8675 times)
gvb
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December 06, 2018, 07:31:22 PM
 #381

yeah, that's probably it, minefarmbuy.

I only use the pretty view to monitor speeds on new firmwares as that constant updating doesn't time out the session.

too bad it shows the wrong temperature there and not the most important one.
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December 06, 2018, 07:55:52 PM
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 #382

I estimate saving 360 kWh of energy a month per miner on low power firmware. Extra hash rate on old firmware isn't worth the 15% increase in energy use for me and would only generate around 0.006 BTC/month per miner. Not even profitable unless rate is $0.06 kWh or less.
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December 07, 2018, 05:58:04 AM
 #383

Each of my A841s are running — with a voltage level offset setting of -2 — at around 8.8 TH/s after the firmware updates, while drawing approximately 732.5 W. This translates to roughly 82.9 W per TH/s.

My 841 units dropped from 13.7 TH/s to 9.2 TH/s and my 821 units from 11.6 TH/s to 9 TH/s. These are all on the same controller and haven't tried running them on their own. I upgraded MM firmware separately. Voltage level offset set to 0. Claimed .085 J/GH. I don't have meter but that should put them around 750-800 watts. I swapped out some larger PSUs for 1200w HP. Two 841 on this firmware seems like it would be similar to a single 921.

It just dawned on me that for the moment, with these upgrades available the 841 is pretty much equal with the 921 right now for Canaan's most competitive hardware.

I'd like to reflect that in the Current List of Competitive Hardware - December 2018. Just want to make sure the details seem clear where I link to. To achieve the desired efficiency do you have to have the update installed for both the Miner and the Controller, or do you achieve results by just updating for the Miner?

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December 07, 2018, 10:22:24 AM
 #384

[...] To achieve the desired efficiency do you have to have the update installed for both the Miner and the Controller, or do you achieve results by just updating for the Miner?

I'd say both. The Controller's cgminer would need to be updated to include the new high-efficiency mode and the MM firmware would need to be updated to understand what that mode means and how to execute it.
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