Aggroholic

Hi guys, I need some help with my case. I have a v71 but im unable to make the fans spin. Their led is on but wont spin,tried to plug them to the mobo and it work, but the problem is that i cant control the speed so i have all fans at max speed and is very annoying. Im very dissapointed whit these case. Its all faulty, the front audio jack also wont work. Any suggestion wuld be appriciated. Thansk in advance