I recently bought 6 Lian Li Bora 120 RGB fans.
The problem is that I am unable to control the fan speeds even though I have the PWM connector connected.
All of the fans are connected to a Lian Li fan hub, which is connected by a molex connector to the PSU and a connector to a PWM header on the motherboard.
Motherboard: Asus ROG Rampage V Extreme
Fan: Lian Li Bora 120 RGB