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Author Topic: Avalon ASIC users thread  (Read 437772 times)
Havane
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October 22, 2021, 09:53:31 PM
 #4401

Hello

I have one avalon 1246 83T, running with the 4 fans at 6500 rpm and 65°C; And just next, one avalon 1246-N-85T, running with the 4 fans at 3500 rpm and 75°C

Is it a normal behavior ?
Is it possible to manage the speed and the temperature target ?

Thanks
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coinmafia2
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October 26, 2021, 04:49:34 AM
 #4402

Hello

I have one avalon 1246 83T, running with the 4 fans at 6500 rpm and 65°C; And just next, one avalon 1246-N-85T, running with the 4 fans at 3500 rpm and 75°C

Is it a normal behavior ?
Is it possible to manage the speed and the temperature target ?

Thanks

I have 83T as well. Fan speed seems high. You can compare with mine below.


https://i.imgur.com/d1cArwE.png
Havane
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October 28, 2021, 12:37:16 PM
 #4403

Yes maybe a problem with sensor temp ?

Since few days, I have difficulties with my Avalon1246 83T : Hashrate drops, and it reboots often. Problems occur in normal or turbo mode
Previously, It worked without problem.

Here are log and picture.

I could catch a log with SYSTEMSTATU[Work: Out Over Hot, Hash Board: 3 ] error ; but I always see 26° / 66° in the dashboard, not high
https://pastebin.com/uGH0PH9w


It's not an internet provider problem, because just next to it in the same room an other 1246 85T runs perfectly.

Note that fans run at 6500 RPM (whereas on other 1246 85T runs at 3500. Maybe it's ok)




Here a view of minerstat where ou can see it works during hours (days) and then it has problems



Any idea of the problem ?


Dashboard and log when everything is ok

Log : https://pastebin.com/d8b4EWSc


coinmafia2
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October 29, 2021, 05:55:34 AM
Merited by NotATether (1)
 #4404

Looking at the difference between logs. Looks like Power supply issue.

Unstable:
PS[0 1214 2 0 0 1308]

Stable:
PS[0 1217 1311 243 3190 1308]

Item 3: the voltage supplied
to the hash board is normally
between 1200 and 1400 (unit:
10mV).

The log description can be found here:
https://canaan.io/wp-content/uploads/2020/03/log-Description.pdf
Havane
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October 29, 2021, 08:05:01 AM
Last edit: October 29, 2021, 08:58:45 AM by Havane
 #4405

I see hight temperature ( >100) in some chips and high voltage

The wrong values in the PS come just before a reboot. Maybe because of the high temperature of some chips, when the system stops
coinmafia2
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October 31, 2021, 08:01:07 PM
 #4406

Are you able to change power supplies?

Here's my log.

https://pastebin.com/cnc6Dgqi

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