How to Choose and Maintain Whatsminer P21D and P21E Power Supplies

How to Choose the Right PSU for Your Whatsminer  

When selecting a power supply for your Whatsminer, the first step is to check compatibility. The P21D is best suited for older Whatsminer models, while the P21E is designed for newer versions that demand higher power.  

Power requirements are another crucial factor. If your miner needs more than 3300W, then the P21E is the better choice. Additionally, ensure your electrical setup supports a 220V input, as these PSUs do not work with standard 110V home outlets.  

Efficiency is also important. The P21E has a slightly improved efficiency over the P21D, meaning it converts more electricity into useful power for mining with less energy wasted as heat. This small difference can impact long-term electricity costs and mining profitability.  

Maintenance Tips for Whatsminer PSUs  

To ensure long-term performance and prevent overheating, regular maintenance is essential.  

- Keep the PSU Clean  

 Dust accumulation can reduce cooling efficiency. Use compressed air to clean the cooling fans and vents periodically.  

- Ensure Proper Ventilation  

 Place the PSU in a well-ventilated area to allow proper airflow. Avoid stacking multiple PSUs too closely together, as this can restrict cooling efficiency.  

- Monitor Power Usage  

 Use a power meter to check the PSU’s energy consumption and ensure it operates within its rated limits. Overloading the PSU can lead to overheating and shorter lifespan.  

- Check for Firmware Updates  

 Some power supplies may require firmware updates to optimize performance and improve compatibility with newer mining models.  

Proper selection and maintenance of your Whatsminer P21D or P21E PSU can maximize mining efficiency and prevent downtime. Investing in the right power supply ensures stable performance and long-term profitability for your mining operation.