12.Reinstallanypartsandreconnectanycablesthathavebeenremovedordisconnected.
13.Reinstallthecomputercoverandreconnectpowercordsandallotherexternalcables.See“Completing
thepartsreplacement”onpage37.
14.Turnonthecomputerandremovethediscfromtheopticaldrive.
Chapter5.Updatingsystemprograms53
