Step7.Disconnectthespeakercablesfromtheconnectoronthemotherboard.
Step8.Removethefourscrewsthatsecurethespeakersystemtothechassis,thenliftupthespeaker
systemtoremoveit.
Step9.Toinstallthenewspeakersystem:
a.Placethenewspeakersystemintoposition,thensecureitwithfourscrews.
b.Connectthenewspeakercablestotheconnectoronthemotherboard.
Step10.Reattachthemotherboardcover,hingefixingbracket,backcoverandstand.
Replacingtheheat-sink
Note:Turnoffthecomputerandwait3to5minutestoletitcooldownbeforeremovingthecover.
Note:Itmaybehelpfultoplacethecomputerface-downonasoftflatsurfaceforthisprocedure.Lenovo
recommendsthatyouuseablanket,towel,orothersoftclothtoprotectthecomputerscreenfromscratches
orotherdamage.
Toreplacetheheat-sink:
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.Removethestandandbackcover.Referto“Removingthestandandbackcover”.
Step5.Removethehingefixingbracket.Referto“Removingthehingefixingbracket” .
Step6.Removethemotherboardcover.Referto“Removingthemotherboardcover”.
Chapter8.Replacinghardware41
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