Power Limit is a setting that restricts the maximum electrical power consumed by computing equipment. It is used to manage the relationship between hashrate, power consumption, and temperature.

When the power limit is reduced, the equipment receives less energy for performing computations. Depending on the device architecture, this may result in a reduction in operating frequency, hashrate, and temperature.

Why Power Limit Is Used

  • limiting power consumption;
  • reducing component temperatures;
  • reducing the load on the power supply and electrical infrastructure;
  • optimizing power efficiency;
  • matching equipment to the available electrical capacity.

Reducing the power limit does not always result in a proportional decrease in performance. The exact effect depends on the chip architecture and the current operating mode.

Relationship to Other Settings

Power Limit is often used together with undervolting, underclocking, and overclocking. These parameters make it possible to select an operating point between performance, power consumption, and temperature.

For stable operation, it is necessary to consider not only the configured limit but also actual power consumption, temperature, and the number of hardware errors.