Antminer S19 – ASIC Chip Temperature Imbalance
Warning — Should be addressed soon
Symptoms
- Significant temperature variance between chips on same hashboard
- Some chips running 15°C+ hotter than others
- Possible hashrate instability
Step-by-Step Fix
Power off and inspect the hashboard heatsink mounting.
Check if thermal paste coverage is even across all chips.
Reapply thermal paste ensuring uniform thin layer on each chip.
Verify heatsink is making flat contact — warped heatsinks cause uneven pressure.
If one specific chip is consistently hotter, it may be defective and require professional replacement.
When to Seek Professional Repair
If the steps above do not resolve the issue, or if you are not comfortable performing these repairs yourself, professional service is recommended. Attempting advanced repairs without proper equipment can cause further damage.
Related Error Codes
Still Having Issues?
Our team of Bitcoin Mining Hackers has been repairing ASIC miners since 2016. We have seen it all and fixed it all. Get a professional diagnosis.
