I got the h60 2013 edition and I have a 120mm exhaist on the back which has rubber grommets instead of screw holes to install fans so i will install it there so how should my orientaion be? Fan intake on radiator from inside or intake on the outside part. Or should i make it exhaust as i have two 120mm 90cfm front intake and a side exhaust over cpu. No top fan mounts.