Lenovo IdeaCentre B550 All-in-One Bedienungsanleitung PDF herunterladen (Seite 52)

Step15.Lowerthemicroprocessorstraightdownintoitssocketonthemotherboard.

Step16.Tosecurethemicroprocessorinthesocket,closethemicroprocessorretainerandlockitinto

positionwiththesmallhandle.

Step17.Useathermalgreasesyringetoplace5dropsofgreaseonthetopofthemicroprocessor.Each

dropofgreaseshouldbe0.03ml(3tickmarksonthegreasesyringe).

Step18.Reattachtheheat-sink,systemfan,EMIcover,middlecover,opticaldrive,computerstandand

therearcover.

Removingthereardeco

Note:Turnoffthecomputerandwait3to5minutestoletitcooldownbeforeremovingthecover.

Note:Itmaybehelpfultoplacethecomputerface-downonasoftatsurfaceforthisprocedure.Lenovo

recommendsthatyouuseablanket,towel,orothersoftclothtoprotectthecomputerscreenfromscratches

orotherdamage.

Toremovethereardeco:

Step1.Removeanymedia(disks,CDs,DVDsormemorycards)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”.

46IdeaCentreB550–B555HardwareMaintenanceManual

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Lenovo IdeaCentre B550 All-in-One Bedienungsanleitung Seite 52