a few weeks ago I noticed my optical drive wasn't showing up in disk utility. I double checked the connections and tried both 1 and 2 connectors to no avail. The drive does not respond even to a manual press of the hardware eject button so either the drive is dead or I'm not receiving power to these ports. Does anyone have an working knowledge of the power connections for the Mac so I don't have to go digging around in the chassis for a loose connection? Is it possible my PSU is busted?