Step11.Removetheeightscrewsthatsecuretheheat-sinktothemotherboardandchassis.
Step12.Removetheheat-sinkbyliftingitup.
Attention:Placetheheat-sinkupsidedownonaatsurfacetopreventthermalgreasefromcontaminating
othercomponents.
Attention:UseanalcoholpadtowipethethermalgreaseofftheCPU.
Step13.Toinstallthenewheat-sink:
a.Lineupthenewheat-sinkwithmountingholesonthemotherboard,thenplaceitintoposition.
b.Followthenumbersprintedonthenewheat-sinktosecureitinorderusingtheeightscrews.
c.Usethesealingtapetosealthegapin-betweenthesystemfanandheat-sink.
Step14.ReattachtheEMIcover,middlecover,opticaldrive,standholder,footcoverandstandbase.
Replacingthecamera
Note:Turnoffthecomputerandwait3to5minutestoletitcooldownbeforeremovingthecover.
Note:Itmaybehelpfultoplacethecomputerface-downonasoftatsurfaceforthisprocedure.Lenovo
recommendsthatyouuseablanket,towel,orothersoftclothtoprotectthecomputerscreenfromscratches
orotherdamage.
Toreplacethecamera:
Step1.Removeanymedia(disks,CDs,DVDs,ormemorycards)fromthedrives,shutdowntheoperating
system,andturnoffthecomputerandallattacheddevices.
Step2.Unplugallpowercordsfromelectricaloutlets.
Step3.Disconnectallcablesattachedtothecomputer.Thisincludespowercords,input/output(I/O)
cables,andanyothercablesthatareconnectedtothecomputer.Referto“Leftandrightview”
and“Rearview”forhelpwithlocatingthevariousconnectors.
Step4.Removethestandbase.Referto“Removingthestandbase” .
Step5.Removethefootcover.Referto“Removingthefootcover”.
Step6.Removetheopticaldrive.Referto“Replacingtheopticaldrive” .
Step7.Removethestandholder.Referto“Removingthestandholder”.
Step8.Removethemiddlecover.Referto“Removingthemiddlecover”.
Chapter8.Replacinghardware47
