Welcome to ProCooling!
We don't often see people running 9 fans (or more likely: few admit it!), so if you want to swap it all out for some most excellent cooling, that'll even let your PC live a little longer, and relieve your ears of the tornadoes, you're at the right place.
As a start, a bit of electronic knowledge might help: look/search for fan controllers.
We've got a few completely fan-free members too!
