Hey guys and gals, Building my first PC grow box, and I have read and read, but I have not been able to find the answer to this question: How do I convert a standard 80mm 12v PC case fan so it can be used in a PC box? IF there are any step by step directions, that would be great but if not, just a quick how to would be great. I am only using 2 fans in this case, maybe 3 max.