10. In case the nonces of most chips in your entire miner or single board are returned to 0, it is normally a chip welding issue. Reinstall it and it will be Alright. This spare part is particularly made for effortless upkeep and repair from the S19 Professional hash https://antminer-s19-hashboard65318.imblogs.net/81282290/not-known-details-about-antminer-s19-pro-hashrate