How to Underclock Antminer S19 to Reduce Power Consumption? Step-by-Step Guide


In this article, we will show you how to underclock Antminer S19 in a step-by-step guide.

Antminer S19 Series miners are powerful Bitcoin mining machine that can generate a high hash rate and mine Bitcoin with high efficiency. However, running Antminer S19 at full power can result in high power consumption and temperatures that can negatively affect the device’s performance and lifespan. Underclocking Antminer S19 is a way to reduce its power consumption and temperature to optimize Antminer S19 for Bitcoin mining, while still maintaining a reasonable hash rate. Let’s see why underclocking Antminer S19 can reduce its power consumption and how to underclock.

Can Underclock Reduce Power Consumption ofAntminer S19?

Yes, underclocking can reduce the power consumption of Antminer S19 bitcoin miners.

The power consumption of a Bitcoin miner like Antminer S19 is directly proportional to its operating frequency. The higher the frequency, the more power the miner will consume. Therefore, by reducing the operating frequency through underclocking, the power consumption of the miner can be reduced.

Underclocking Antminer S19 can also have the added benefit of reducing the heat generated by the miner. Since the power consumption is reduced, the components of the miner will generate less heat, which can improve the overall performance and longevity of the device.

It is important to note, however, that underclocking Antminer S19 can also reduce the hash rate of the device. Hash rate is the speed at which the miner can solve the mathematical calculations required to mine Bitcoin. Therefore, reducing the operating frequency can also reduce the miner’s hash rate.

Therefore, it is recommended to test different frequencies and find the optimal balance between power consumption, temperature, and hash rate to achieve the best results for your specific situation.

Read more: How to Overclock Bitmain Antminer S19 Series Miners (With Video)

How to Underclock Antminer S19

Underclocking the Antminer S19 involves reducing the clock speed of the mining hardware to consume less power and generate less heat. Here’s a general guide on how to underclock an Antminer S19:

How to Underclock Antminer S19
Log in to Antminer S19’s web interface

The first step in underclocking Antminer S19 is to log in to the device’s web interface. You can access the web interface by entering the Antminer’s IP address in your web browser. The IP address of the device can be found on the sticker attached to the miner or by using an IP scanner tool.

Navigate to Miner Configuration Tab

Once you have logged in to the Antminer’s web interface, navigate to the “Miner Configuration” tab.

Scroll down to the “Advanced Settings” section

In the “Miner Configuration” tab, scroll down to the “Advanced Settings” section.

Find the “Frequency” or “Clock” Setting

In the “Advanced Settings” section, look for the “Frequency” or “Clock” setting. The frequency setting controls the clock speed of the Antminer’s processors. The default frequency of Antminer S19 is 95 TH/s, which is the maximum frequency that the device can operate at.

Lower the Clock Speed

To underclock Antminer S19, lower the clock speed to a value that is lower than the current frequency. A recommended frequency for underclocking Antminer S19 is around 17TH/s or 16TH/s. Enter the new frequency value in the “Frequency” or “Clock” setting.

Click on “Save & Apply”

Once you have entered the new frequency value, click on the “Save & Apply” button to apply the new frequency settings to the device. The Antminer S19 will reboot, and the new frequency settings will take effect.

Monitor the Performance

After the Antminer S19 has rebooted, monitor its performance to ensure that the device is stable and continues to mine properly. Check the temperature and power consumption of the device to ensure that they are within safe limits.


Underclocking Antminer S19 is an effective way to reduce the device’s power consumption and temperature while still maintaining a reasonable hash rate. By following the steps outlined in this article, you can easily underclock Antminer S19 and optimize its performance. Remember to find the optimal balance between power consumption, temperature, and hash rate, to maximize the profitability of your Bitcoin mining operations.

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