I just got my Corsair HX850W PSU and tried to power it up to see the 140mm fan work. Hmmm...nothing. Fan won't power up. Granted, it is not hooked up to a mobo or anything, it's just sitting on the workbench. But the thing acts as if it's dead. Is this normal? I am guessing the fan sucks air into the unit, cools the internals and then exhausts the hot air out the back of the unit. Maybe the PSU "has" to be hooked up to a mobo to work? The fan is probably 12v and that's why it doesn't come on... By the way, I got my CM HAF 932 this morning - what a rig, it's an animal. Don't forget, beauty is in the eye of the beholder, I love the thing. UPS damaged the box during shipping, I was worried. But I inspected the case closely and all is perfect.