Hello guys, i own Z11 and i´ve already done some mods on on it, and i´ve added one more front fan ^^ It´s just easy, but you need 140mm fan, or 120mm, cable ties, one more person that will holds your fan. For first, make there a place for it, take the fan, ties, and add tie on every screw hole and take it through holes for installing dvd-roms and things like that. Take ties through it and tie it strongly. I´ll upload some pictures ^^ It´s simple and easy ^^
Installation:
http://postimg.org/image/56kykerwx/
http://postimg.org/image/srzaz0g37/
Finished:
http://postimg.org/image/xgbusxtyh/
http://postimg.org/image/l2mm8roa5/
Btw i was installing fan controller, it looks more badass and its more quiter ^^