
Step6.Removethe4screwsthatsecurethesystemfantothemotherboard.
Step7.Removetheheat-sinkbyliftingitup.
Step8.Toinstallthenewheat-sink:
a.Lineupthenewheat-sinkwiththemountingholesonthechassisandplaceitintoposition.
b.Securethenewheat-sinkwiththe4screws.
Step9.Reattachthesystemfanandcomputercover.
Replacingthesystemfan
Note:Turnoffthecomputerandwait3to5minutestoletitcooldownbeforeremovingthecover.
Note:Itmaybehelpfultoplacethecomputerface-downonasoftatsurfaceforthisprocedure.Lenovo
recommendsthatyouuseablanket,towel,orothersoftclothtoprotectthecomputerscreenfromscratches
orotherdamage.
Toreplacethesystemfan:
Step1.Removeanymedia(disks,CDs,ormemorycards)fromthedrives,shutdowntheoperating
system,andturnoffthecomputerandallattacheddevices.
Step2.Unplugallpowercordsfromelectricaloutlets.
Step3.Disconnectallcablesattachedtothecomputer.Thisincludespowercords,input/output(I/O)
cables,andanyothercablesthatareconnectedtothecomputer.Referto“Leftandrightview”
and“Rearview”forhelpwithlocatingthevariousconnectors.
Step4.Removethecomputercover.Referto“Removingthecomputercover”.
Chapter8.Replacinghardware33
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