To mix modules or not? Could use some help with settings

So typically if this was a new PC I wouldn’t mix modules but my system is a few years old now obviously. In my system I currently have 16GB (2x8GB) F3-1866C9D-16GXM RipjawsX…

To mix modules or not? Could use some help with settings

Source: [H]ardOCP – To mix modules or not? Could use some help with settings