When I purchased my r7 1700 when it first came out coolers for am4 were limited so I just grabbed what I could which was a cooler master master something 280 i think. Anyway, it had wicked vibration due to where i mounted it which was the top of the case and it came with this rubber gasket thing but i was dumb and thought it didnt fit so i threw it out. cut to a couple weeks later and i thought the fans were shitting the bed during a 36hr queue of handbrake encodes but noticed it went away if i lowered fan speed to 20% which was fine for heat too since the 1700 barely warmed up. anyway i have a 2700x now and it gets a smidge toastier during long encodes so of course the fans need to spin up sporadically for a bit here and there so now i am looking at options to lessen case vibrations. so here is what i was thinking. replace the fans for something with rubber on the corners like a noctua 140mm of which i have one on hand already i could buy another and change the fan positioning so instead of the rad touching the chassis the fans would be. this option would be like 25$. get a pack of rubber grommets and potentially longer screws. roughly 10ish $ but i dont know which size screws i would need if i needed them. get a foam or rubber gasket thingy for a 280mm rad. available on amazon for roughly 10$ and i can next day them with prime. or i can use some 3 pin fans that dont spin up very much and just leave them at 100% all the time. i have like 10 of those fractal gp14 fans or whatever i use them for all my cases because they are quite at 100% and pull a nice amount of air through rad type things. could even mount 4 of them for extra airflow. not sure how these would perform compared to the fans on the rad or if the case would still vibrate though. but cost would be nothing. I am posting this to see if anyone has a good idea or has any good input. thanks!