corsair h100i pro xt

Hey everyone, I'm looking at a cpu cooler to go in the Corsair 465x case that is compatible with the ll120 fans included in the case. It says that only a 280mm rad is able to fit on the front but then I need to get 140mm fans? But surely if a 280mm rad fits then a 240mm rad would also fit...

I just bought and installed the cooler, on my i5 8400, and Z370-F Strix. Powered by Sata, plugged into CPU_FAN for the feedback, installed USB and instaled iCUE 3.28.70. When i run the pump at Quiet, it has like bubbling noise.... which produce the loudest noise with side panel removed. on '...