My computer is making a "moaning noise". I suppected a fan going out on it a few weeks ago, and started to replace it, but I took it out of the computer and cleaned it up, and it seemed to stop making "that noise", but now it seems I've got another noise. I can't tell where this one is coming from. It don't seem to be coming from the one I checked. My son,( which is the expert ) tells me there is other fans in there, but they are not visible when I take the side off. I would ask my son, but he is on his regular job, and is not available, and when he gets off, too tired, family life etc. etc. Looks like I'm going to have to learn more about this computer myself. Any ideas where the other fans might be? Seems like my computer is getting slower, and he told me that might be one of the signs of a fan going out. Thanks Steve..