Avalon ASIC users thread

[Havane]

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

[1714802058]

1714802058

[1714802058]

1714802058

[coinmafia2]

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]

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]

Are you able to change power supplies?

Here's my log.

https://pastebin.com/cnc6Dgqi

[vmvelev]

Hi guys,

It looks like my PSU is dead, as when I turn on the machine (1246 85T) I just hear a clicking sound.

I disassembled the PSU but I found nothing burned, the fuse is okay.

Do you have any repairing suggestions?

[HagssFIN]

Hi guys,

It looks like my PSU is dead, as when I turn on the machine (1246 85T) I just hear a clicking sound.

I disassembled the PSU but I found nothing burned, the fuse is okay.

Do you have any repairing suggestions?

I hope you have 230VAC mains supply for it, do you?

[philipma1957]

Hi guys,

It looks like my PSU is dead, as when I turn on the machine (1246 85T) I just hear a clicking sound.

I disassembled the PSU but I found nothing burned, the fuse is okay.

Do you have any repairing suggestions?

I hope you have 230VAC mains supply for it, do you?

yeah if you run at 208-215 volts it is harder on the psu.

worse yet is a power dip or brownout to 185-195 volts as the psu will try to run and eventually hurt itself.

[Cerobug]

Can anyone tell me how to code the commands into the FMS tools diagnose area to setup a command like this. It doesn't seem to work if I put that into the run field.

--avalon-auto --avalon-freq 256-365 --avalon-cutoff 80 --avalon-temp 60