Sorry for the delay.
Here are the pictures - I can't tell if there is only 1 controller, or not. I think there is a second one hidden in the middle based on the side daisy chain.
imgur.com/a/5ekJQJp
There are 6 fans, all 6 are getting power, and the cpu fans appear to register the temperture. the visible controller is connected to the cpu fan.
On the mobo for pump fan it's cabled, but sys fan is not power cabled.
let me know if i need to provide more info or do something else.