Extreme series? Change it! Why? You can do a manual search on the forums itself to answer that question. Can't change it? You system, your money, your risk, your wish
Out of curiosity, from the site right?
What fans? 120mm? What case? If its one of those small cases with useless fans that barely push much air then you will need better fans. Do some cable management and clear the cable mess around the system using cable ties!
Also out of curiosity, did you stuff your case inside a furniture enclosure with absolutely no way of air flowing properly?
Help can only be given if relevant information is given. Do the needful and post back.