hi all- I'm looking for some 140mm push only fan recommendations, there will be 4 fans on 2x280mm HWLabs GTS XFlow radiators (front intake and top exhaust) in a push only configuration . It seems like noctua NF-A14 may be an option? Not sure about PWM or not, would I have to get a controller? I do like the idea of variable speed based on noise/perf. ratio Will be cooling my current CPU (platform upgrade in 1-3 years) and eventually 1080ti GPU Loop order is res-pump- CPU-GPU-rad1(top)-rad2(front)-res Thanks for the help!