It's hard to troubleshoot without the kernel logs if you can able to copy the whole kernel logs from your miner and post it here maybe we can see the issue.
I suggest you read this "
Most Common Mining Issues, Read Before Making a New Post."
If the solution does not work from that link then try this.
- Upgrade the miner to the latest version
- Try to replace or temporary use the PSU from other units
- Try to replace the ribbon cable and the metal from PSU from known working units.
- Test again and let see any changes and take note for kernel logs and post it here with insert code tag.
