Hi all, After having a look at a few peoples setup I have noticed that when their PSU is mounted on the floor of the case they seem to be mounting in up side down so that the fan draws air from inside the case. I have a Nzxt case with an air hole in the bottem so that in draws air from outside the case. Is there a reason why people do this or am I missing a trick ! Sorry if this seems a silly question but only just really gotten back in you PC building and was only very new to this even before that. Cheers