Restoring ASIC Miner Performance: Fixing Hashrate Drop Issues

If your ASIC miner suddenly shows “0 hashrate” or the hashrate starts to fall over time, you are not alone. Many miners report unstable performance, slower mining speed, or missing data on the dashboard even when the hardware looks normal.

A quick restart can sometimes fix a temporary “0 hashrate” issue, but other causes are more complex. Overheating, unstable power, firmware errors, and aging parts can all affect your hashrate.

Hashrate simply means the computing power of your miner. It shows how many calculations the device performs every second. When this number becomes unstable, it usually means something inside your setup needs attention.

Based on Yesmining’s experience, this guide explains how to check common hashrate problems and restore your miner’s performance safely. It applies to most popular models such as Antminer, Whatsminer, Goldshell, and Iceriver.

Common Causes of Hashrate Drops

Overheating and Poor Cooling
High temperature is one of the main causes of unstable performance.

• When the room temperature reaches around 50°C, the chip temperature rises quickly.

• Dust or old fans can reduce airflow and cause unstable hashrate.
  Fix: Clean your miner, replace damaged fans, and keep good ventilation.

Unstable Power Supply
Voltage changes or power module wear often cause temporary drops in performance.

• Make sure your voltage stays between 210 and 240V.

• Check for loose or burnt cables.

• Use a voltage stabilizer if the site power is unstable.

Component Aging Under Heavy Load
After months of 24-hour operation, capacitors and resistors may weaken.
This can lower the efficiency of your miner even if all indicators look fine.
Routine maintenance helps keep performance steady.

Firmware or System Errors
Old or failed firmware updates may cause hashboard detection problems or uneven hashrate.

• Reinstall the official stable firmware.

• Do not use beta or modified versions.

• If readings stay unstable, try restoring factory settings.

For official guidance on Antminer low hashrate issues, see Bitmain Support or contact our team for faster assistance.

When the Miner Dashboard Shows “No Data”

Sometimes the miner dashboard shows no hashrate even though the fans are spinning.
This is often a communication issue between the control board and the hashboards.

Try:

• Power off the miner for two minutes and restart.

• Reconnect the data cables between boards.

• Upload the latest firmware through the web panel.

Bitmain’s official support notes that temporary hashrate loss can result from power or heat protection. Restarting may fix it, but if the issue repeats, further inspection is needed.
At Yesmining, our engineers have helped customers review logs and temperature data remotely to find the root cause and restore stable hashrate.

Firmware Upgrade Failures and Hashrate Loss (Goldshell AE Box Example)

Some models like Goldshell AE Box may lose hashrate after a failed firmware update.
To fix it safely:

• Wait 5 to 10 minutes before turning off the power, as the update may still be running.

• If the miner does not respond, power it off for one minute. Then hold the Reset button for ten seconds during restart to enter recovery mode.

• Access the web interface and upload the correct firmware.

• Reconfigure your pool and wallet details, then test the miner’s output.

If the problem continues, configuration files or EEPROM data may be damaged.
In that case, professional recovery or remote guidance is recommended.
Yesmining engineers have helped users recover AE Box and other miners with similar firmware issues.

Monitoring After Recovery

After the miner returns to normal, keep it running for at least 24 hours.

• Use pool statistics or monitoring tools to check hashrate stability.

• Track chip temperature and fan speed.

• Avoid restarting too often.

Regular inspection and cleaning can reduce future downtime and keep the machine working efficiently.

Conclusion

A drop in hashrate does not always mean hardware failure.
Most problems are caused by heat, power, or firmware issues that can be solved with proper care.
By following these steps and maintaining your miner regularly, you can restore stable performance and keep your operation profitable.