I have an Asus P8H67-M Evo that I'm just building up into a case with 2 case fans. It has a chassis fan header, a cpu fan header and a pwr fan header. My question is can I safely plug one of the case fans into the pwr fan header and if I can will I be able to use speedfan or similar to control the rpm? There are some people (from googling) who seem to reckon you should never plug anything but one of those old psu fan connectors into the pwr fan header but that seems a bit outdated.