Postagem original de: mayer ,
That hard drive I/R cable is well know on this particular model. Apple was even replacing it for free (they may possibly still be doing this). It fails in two places. One from contact with the rough bottom surface where the hard drive sits on the cable and vibrated it against the bottom of the case. In this case you cover the bottom with wide electrical tape along the path of the cable. The other failure point is on the top step of the wall climb as it comes over the top. The bottom of the case comes in contact with the cable and damages it. When replacing the cable I put pads on either side of the cable to prevent the bottom cover from coming in contact with the cable.