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.