yes it does. it's the xclio 450bl. the only thing I've noticed is that it's making a faint whining noise now. I had a 370w enermax and upgraded to this because the computer wouldn't boot, but I think the floppy was the problem with that as well. It seems that the psu works with the floppy on first use and then fails.
if the cable isn't keyed and then is plugged in upside down, I've seen this happen. As always, verify that pin 1 on either end of the connection is going to the colored wire.