I bought the Intel i9 9900ks CPU and at the same time bought the Deepcool Assassin iii CPU cooler to cool it. Not thinking about whether it will fit into my Aerocool mechatron x mid tower case i was all gitty. It got here and I see tge size of this thing and am wondering if maybe I need to buy a new case. That is my reason for this thread should I send the cooler back and get another? Or buy a new case? Will not be overclocking but if the opportunity for 5ghz all core is there i would like to be able to run it at the rated speed without the worry of overheating. Hoping to keep the case but will get new one if need be. I am not comfortable with liquid cooling yet so that is not a option. Thank you guys for your help.