I just put in my brother's ODD to test some games in a computer I just built out of second hand parts, saw and smelt smoke and I'm pretty sure it was the ODD after smelling around inside the case and pulled it out, looked at the cables which appeared to be fine and even pulled the disk drive apart but saw no charring and smelt nothing inside. The only smell was on the connectors for the disk drive. The power supply is an FSP 600w PSU with 80+ bronze. Not too keen on turning the computer back on incase it fries anything else. If anyone knows if this really was the power supply, or anything else please say so.