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Author Topic: My review of Avalon 841 .  (Read 3330 times)
gvb
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October 18, 2018, 08:53:39 AM
 #121

no Philip, it's still the original fan that runs at 5850rpm when it shows 100%.

I guess the only option to reduce the noise is to put it in a box with PUR or other foam in it to reduce the sound like others did.
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The network tries to produce one block per 10 minutes. It does this by automatically adjusting how difficult it is to produce blocks.
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philipma1957
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October 22, 2018, 03:51:19 AM
Last edit: October 23, 2018, 01:13:21 AM by frodocooper
 #122

I got some more avalon 841 in and a sorcerer psu  and will do a few tests with them.

[...]

I listed two of these for sale with or with out rasp pi the listing is in marketplace.

I mine alt coins with https://simplemining.net...
I see BTC as the super highway and alt coins as taxis and trucks needed to move transactions.
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October 23, 2018, 07:26:11 PM
 #123

I think I figured out how things work.

It's getting a bit colder now at night and now it's working at 22/65 at 13.005TH although the speed is still 5760/92%.

Apparently the fan speed is controlled by the hash speed and not only taking the actual temperature into account.

If it did it would spin a lot lower or more variable (4000-6000rpm) at this temperature I guess.

you can also see this after stopping and starting the miner again.
it barely increases the first 8TH and can do 70-75C at 2000 rpm for a while till it goes beyond 10TH then speed increases with almost every 0.1TH.
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October 24, 2018, 07:10:10 AM
 #124

I think I figured out how things work.

It's getting a bit colder now at night and now it's working at 22/65 at 13.005TH although the speed is still 5760/92%.

Apparently the fan speed is controlled by the hash speed and not only taking the actual temperature into account.

If it did it would spin a lot lower or more variable (4000-6000rpm) at this temperature I guess.

you can also see this after stopping and starting the miner again.
it barely increases the first 8TH and can do 70-75C at 2000 rpm for a while till it goes beyond 10TH then speed increases with almost every 0.1TH.

You can use --avalon8-temp to change the temperature threshold for auto fan, say for example set it to 70 and the minimum fan speed 40, it will stay at 40 till the chip temp hits 70 then the fans start ramping up but be careful with these settings, I have mine set and they are fairly quiet.
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