S9K temperature related network failure - logs

[mikeywith]

So, put the SDCARD (1go - 8go), power on miner, and, not remove this ! the miner booting by this sdcard

Ok, I think I understood, the firmware is loaded from the Sdcard and does not flash itself on the NAND memory, something similar to Braiins OS when it was first released, so what does he do if he wants to upgrade to a different firmware? I don't see this firmware running on an SD fixes any issue, what if he wants to use another custom firmware for an example, please explain more.

[1714852058]

1714852058

[sxo13]

Where are you exactly trying to located the SDcard slot? I highly think you are mistaken, there MUST be an Sdcard slot on the right side of the ethernet port, just between the port and the IP report button.

Im now not nearby the miners but Im pretty sure there is only the hole on the metal and no sd card slot behind it, or only the jumpers are missing to switch on the booting like from older s9 models ...I may be mistaken but something is off, anyway, will get checked shortly and report here the outcome based on the tips I got.

[thierry4wd]

Ok, I think I understood, the firmware is loaded from the Sdcard and does not flash itself on the NAND memory, something similar to Braiins OS when it was first released, so what does he do if he wants to upgrade to a different firmware? I don't see this firmware running on an SD fixes any issue, what if he wants to use another custom firmware for an example, please explain more.

Yes, runing mode only, no write on NAND ... but, is unlocked, you allowed for upgrade (by web gui after boot) any firmware you want !

Im now not nearby the miners but Im pretty sure there is only the hole on the metal and no sd card slot behind it, or only the jumpers are missing to switch on the booting like from older s9 models ...I may be mistaken but something is off, anyway, will get checked shortly and report here the outcome based on the tips I got.

I'm sur, you have SDCARD slot ! the port is behind

[mikeywith]

Well as long as you can flash a different firmware while booted from the Sdcard then that makes sense, i however, got the original Sdcard recovery program sent to me directly by bitmain after requesting it, i am not sure why do they "hide" that and not simply upload it to their website, that is plain stupid but nothing out of the usual for bitmain to do.

[DonnovanSA]

The log stuck on the temp.

Code:

2020-02-14 09:15:30 temperature.c:1363:process_status_value: Fatal Error: network connection lost!

It might be a temperature sensor.

The temp from PCB is fine it detects properly but after detecting the temp on the chip you got a fatal error then connection lost.

Can you check the miner's configuration and find the low power mode then enable it. then test it again. Let's see if it fixes your issue.

Just in case if still doesn't work check the kernel logs for changes and make a screenshot of your miner's status then post them here.

Had the same problem with my S9K farm found out that it was my uplink causing that, my Main Elect from the DB was running next to the network cable and caused interference I moved my cable away and ran it from a different side of the farm now I don't get any more of those errors

Hi also noted that my psu was on-top of the miner that also interfered with connection mine has been running now with no network lost

[DonnovanSA]

The log stuck on the temp.

Code:

2020-02-14 09:15:30 temperature.c:1363:process_status_value: Fatal Error: network connection lost!

It might be a temperature sensor.

The temp from PCB is fine it detects properly but after detecting the temp on the chip you got a fatal error then connection lost.

Can you check the miner's configuration and find the low power mode then enable it. then test it again. Let's see if it fixes your issue.

Just in case if still doesn't work check the kernel logs for changes and make a screenshot of your miner's status then post them here.

Hi I had the same problem (Is your PSU on top of the Miner where the control board is or your network cable running for more than a meter next to power cables. i removed mine and my psu standing next to the miner again and that error went away.) hopefully that helps for you as well.