ok im about to order parts for my 1st ever build. how necessary is it to have a aftermarket cooler? i will either be getting a AMD FX-8320 or Intel Core i5-4690K. will the stock fan that comes with it keep it cool? or should i just get a aftermarket fan/liquid cooling fan now? i will be playing games like H1Z1,GTA,CS:Go ect. thanks for the help.