Ok, So I just got my stuff from SVC. I got a 70mm to 80mm adpater, Antec Trilight 80mm fan, and a fan grille. And I'm kinda clueless on how to install. I'm a newb. Could anyone help me out? My computer should be shut off when I'm doing this right? And how do I remove the old one? I tried looking on google but didnt find anything. Thank you.