I don't know if it's normal or not how loud my computer is but I am just using the fans that came with the case which probably are not top notch fans. It's not like extremely loud or anything but it sounds like a house fan you would plug into the wall right next to you and set to medium speed. Should I really be worried at all? Also for my Psu fan instead of putting my computer on the carpet I put some tile for it to be placed on but I left the lint trap that came with the case for the psu fan on, should I remove it?