![Msi fan speed](https://cdn3.cdnme.se/5447227/9-3/1_64e61dfaddf2b33c615a3cd3.png)
Press and hold Shift key and then click Restart.You can open the BIOS Dashboard in either of the two ways:
![msi fan speed msi fan speed](https://images.esellerpro.com/2131/I/160/094/DSCN3643.jpg)
In my case, the Antec Prism fans are PWM fans so I can precisely control what speed I want them to run at. The PWM fans allow for a seamless and high-precision control whereas the DC fans lack precision as their speed is controlled by varying the supplied voltage. The PWM fans are 4-pin fans whereas DC fans are 3-pins. PWM fans are DC fans but with an extra wire for PWM.
![msi fan speed msi fan speed](https://www.pcbuyerbeware.co.uk/wp-content/uploads/2014/05/MSI-UEFI-BIOS-fan-control-settings.jpg)
There are two ways you can control the fan speed (RPM) in your PC:
![msi fan speed msi fan speed](https://graphicscardhub.com/wp-content/uploads/2019/04/msi-afterburner-fan-speed-manual.jpg)
Having said that, the process should be similar for other fans and motherboards. In this blog post, we are going to see how to control the fan speed/RPM of Antec Prism ARGB 120mm fans on a MSI X570 Tomahawk Motherboard.
![Msi fan speed](https://cdn3.cdnme.se/5447227/9-3/1_64e61dfaddf2b33c615a3cd3.png)