I have two EK Phoenix kits. One is a 360mm for the CPU and the other is a 280mm for my GPU. Right now I have a Silverstone PWM hub off the one PWM port on the mobo going to both MLC kits. This works but is less than ideal since the pump and fans for the GPU rad are still controlled based off of the CPU temps.
I see most of the new boards have multiple PWM headers, at least 2. I know plugging the CPU kit into a PWM header is straight forward and I just set the smartfan parameters I want based on CPU temp. However, plugging in the GPU kit into another 4 pin PWM has me curious. Is it possible to have the board control the GPU's kit pump/fan speed based on the GPU's temp? How would the motherboard know what temp the GPU is at?
I hope I haven't made this too confusing.