Hi I am thinking of getting 2 of these fans (https://www.amazon.co.uk/quiet-Pure-Wings-BL046-3-Pin/dp/B00ECWKD6I/ref=sr_1_7?ie=UTF8&qid=1507709348&sr=8-7&keywords=be+quiet) for my PC case (http://www.corsair.com/en-gb/carbide-series-300r-compact-pc-gaming-case) Are these any good, do you recommend any other for a similar price? I already have 2 default case fans, front and back of the case but it is a little too hot atm. Where should I place these new fans. thank you in advance.