Would a setup with the radiator with two 140mm as intakes with a rear 140mm fan as exhaust and a 140mm fans above the rear fan as exhaust all controlled by the kraken provide good airflow
if you check they have 2 fans in front that push fresh air in and they set the coller fans to push air to fins out on top with the back ano also taking air out .
if you check they have 2 fans in front that push fresh air in and they set the coller fans to push air to fins out on top with the back ano also taking air out .
i would keep it since you also have 2 x 140 mm in front the back one will help to take any hot air left from gpu and inside the case from others components out .