About a week ago I replaced my power supply, while I was in there I cleaned out all the dust and noticed my mb's south bridge fan wasn't turning while the pc was on. Never had this prob before but I hear you can get a fan dirt cheap. I hear you have to take everything out though in order to replace it. Such as video card, etc. I have been having probs with my pc as well, not sure if it's related or not but sometimes when I boot it freezes during the Windows Xp loading window or right after it loads the desktop, causing me to manual reboot. So my question is, is this possibly related and does anyone have a guide out there so I can replace my fan? Thanks.

Try here http://www.donutey.com/fan.php