I installed mine on my Z170 but I don't think it's required. The way I look at it is that all that "armor" does nothing more than cause dead zones next to parts that may need a little air movement so why not install them. If noise is your concern, they are near silent after initial startup. After that I don't hear them at all. If you don't have them I doubt you will see much difference unless you have poor airflow in your case but I would put them on if you have them.