With the help of an ifixit guide, I took apart the Xbox to try to see what happened to it myself. Along the way, I discovered how complicated it is to take apart. (One of the things I found was a Foxconn DVD drive.) Once I took it apart and realized that repairing it (since it had already failed) was a waste of time, I decided to save the hard drive and buy a new one eventually.
(Yes, this is how @rcantwell came up with the #JoeStrong hashtag and wristbands. Nope, not kidding.)