the fan are uphere brand red led fans 120mmMake and model of the fans and how they're connected to the motherboard/system? If the LED's are paired to the fans while the fan's only source of power and RPM is through the 3/4 pin fan header on the motherboard then your better off leaving them as is. AI Suite does a good job and lowering the fans RPM to almost no sound but that will come at the expense of slightly higher temps.