12.Reinstallanypartsandreconnectanycablesthathavebeenremovedordisconnected.
13.Closethecomputercoverandreconnectpowercordsandallotherexternalcables.See“Completing
thepartsreplacement”onpage52.
14.Turnonthecomputerandremovethediscfromtheopticaldrive.
Chapter5.Updatingsystemprograms67
