one day tried turning on my computer and the screen was completely black with the indicator light solid... took it to downtown chicago apple store genius bar and they replaced the logic board and got it workin again... ever since i got it back though the fans will not stop spinning loud and in excess compared to before the repair... were my fans not working properly before which led to the hardware failure and now they are or did apple jack em up to prevent from having to do another repair for me? the comp is in the same exact spot as before with same room temperature... ive heard about smc fan control, is that program alright to use? i just want my computer to be silent again