I'd like to know if I could power a case fan with something other than a psu. I need the fan running in a box I plan to build so that I can place my PS2 slim(whole) safely into it. Due to heat issues I would like to add a fan without opening the PS2 and I don't want to buy one of those crappy usb fans they make for them. I do have a spare psu but I have no idea how to make that work for this idea since no motherboard is involved. I hope my question is clear and not all too stupid. Thanks Everyone
You need to put a dummy load on the other psu. Here is a link to show what to do. Follow it down to adding a 2bd ATX psu section. http://www.directron.com/2powersupplies.html