That depends on your fan controller. Without knowing if you have built-in fan controller or aftermarket one, i can't say for sure.
For example, in my Skylake build (full specs with pics in my sig), i have a
Thermaltake Commander F6 RGB fan controller. It has 6 channels and channels #5 and #6 does have support for LED strip. So, if i'd want to, i could install 2x LED strips to my fan controller and control them from my fan controller. But since i have NZXT HUE+ setup inside my PC that also includes LED strips, there's no need for me to install additional LED strips to my fan controller.