Greekbull

You can definitely easily mount a H115i to the front of the case. The mounting screws for the 280mm radiator will fit around the 120mm fans in the front:

Would it be helpful to mount another ML120 or 140 over the Powersupply as an exhaust? I already have the PSU mounted so that it's fan is pulling air out of the case but I don't think that thing hardly ever runs

Just built a new PC with a Corsair Crystal 570X Case. Components are the following: Asus Maximus Hero X Z370 i7 8700K G Skill Trident Z 64GB 3200 Asus Strix GTX 1080Ti EVGA Supernova G2 750W I currently have a Corsair H115i Pro in a push pull config with the stock front 120mm fans and the two ML140s pulling. I also have a ML140 and ML120 up top pulling air in. And one ML120 as an exhaust at the back. My question is should I reconfigure the airflow at the top to exhaust as well? just want the best airflow for overclocking. Pic: I do have a H150i on order that is supposed to ship this week and I will be putting that in instead of the H115i Pro for the best possible cooling of the CPU.