Lenovo IdeaCentre B550 All-in-One Bedienungsanleitung PDF herunterladen (Seite 50)

Step10.Removethe8screwsthatsecuretheheat-sinktothemotherboard,andthenliftuptheheat-sink

toremoveit.

Step11.Toinstallthenewheat-sink:

a.Lineupthenewheat-sinkwithmountingholesonmotherboardandsecureitwiththe8screws.

Step12.Reattachthesystemfan,EMIcover,middlecover,opticaldrive,computerstandandtherearcover.

ReplacingtheCPU

Note:Turnoffthecomputerandwait3to5minutestoletitcooldownbeforeremovingthecover.

ToreplacetheCPU

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.Removetherearcover.Referto“Removingtherearcover”.

Step5.Removethecomputerstand.Referto“Removingthecomputerstand” .

Step6.Removetheopticaldrive.Referto“Replacingtheopticaldrive” .

Step7.Removethemiddlecover.Referto“Removingthemiddlecover”.

Step8.RemovetheEMIcover.Referto“RemovingtheEMIcover”.

Step9.Removethesystemfans.Referto“Replacingthesystemfans” .

Step10.Removetheheat-sink.Referto“Replacingtheheat-sink” .

Step11.Liftthesmallhandleandopentheretainer.

Attention:Donottouchthegoldcontactsonthebottomofthemicroprocessor.Whenhandingthe

microprocessor,touchonlythesides.

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Lenovo IdeaCentre B550 All-in-One Bedienungsanleitung Seite 50