Question How do I change my fan speed?

You should just be able to use MSI Afterburner found here (https://www.msi.com/page/afterburner ). Scroll all the way down to find the download link. After you've done that, run the process and drag your fan speed to the desired amount, save as a profile and to set it to open on startup. Afterburner is used as a overclocking software but it should do the trick.
 
Also some free 3rd part software programs like speed fan. Upside to a motherboard one is they will work with your setup and look pretty. Downside is sometimes they limit customizations, such as min and max temps allowed, minimum speeds, etc.