Thanks, what airflow setup do you think would work best with the setup i have... 420mm top.... 420mm front and 140mm fan back.... no room for any other fans. I feel like the top radiator is just utilising and exhausting the warm air from the front intake rad/fans
front intake.
Rear and top exhaust.
Don't worry about the top using the warm air. The air wont get that hot with your setup.
I have the same case and I'm doing a build with 2x 360 front (intake)and top (exhaust) and a 240 bottom (intake) with a fan at the rear (exhaust)
at the moment I just have a cpu and 1 gpu with the 2 360 rads and even with the crap fans I have that move next to no air my temps are 50 for gpu and 60s for cpu (ryzen 1600 and gtx 1080) that's with the fans on the lowest speeds.
I figure when I add my second gtx 1080 to the loop and the 240 rad to the bottom with better fans I will not go above 50c for the gpus and 60 for the cpu