ok guys, GO TO Radio Shack, Future Shop, Staples, The Source any god damn electronic store and buy a god damn DB meter ( sound meter) and test it post results and RETURN it within 15 days or w/e SIMPLE and comapre it to the people who have quiet ones and who has loud Z70va and post what kinda of LOAD ur putting it on, Undervolting and all of the Specs asociated to why the fans are sooooooo loud..
There's no need to send ur laptop to someone just go and buy a Db meter and figure it all out amongst urselfs.. ALso use ur digital camera and record the sounds if possible and upload em here or provide a link.. etc etc.. YES this takes time but hey it will alow all of u guys to compare and figure out this thing as a whole.
To determine whether its teh fans or faulty or dfects or just poor design... w/e the case just DO IT and test and compare. Or live with it or return it and don't test it. w/e
That's my 2 Cents to move forward and make progress to this pandemonium...

Thanks,
MysticGolem