Lenovo C440 All-in-One Bedienungsanleitung PDF herunterladen (Seite 59)

c.Connectthepowercabletothenewpowerswitchboard.

Step13.ReattachtheEMIcover,middlecover,opticaldrive,standholder,footcoverandstandbase.

Replacingthemotherboard

Note:Turnoffthecomputerandwait3to5minutestoletitcooldownbeforeremovingthecover.

Note:Itmaybehelpfultoplacethecomputerface-downonasoftatsurfaceforthisprocedure.Lenovo

recommendsthatyouuseablanket,towel,orothersoftclothtoprotectthecomputerscreenfromscratches

orotherdamage.

Toreplacethemotherboard:

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.Removethememorymodules.Referto“Replacingamemorymodule” .

Step7.Removetheopticaldrive.Referto“Replacingtheopticaldrive” .

Step8.Removethestandholder.Referto“Removingthestandholder”.

Step9.Removethemiddlecover.Referto“Removingthemiddlecover”.

Step10.RemovetheEMIcover.Referto“RemovingtheEMIcover”.

Step11.RemovetherearI/Omodule.Referto“ReplacingtherearI/Omodule” .

Step12.Removetheheat-sink.Referto“Replacingtheheat-sink” .

Step13.RemovetheCPU.Referto“ReplacingtheCPU” .

Step14.RemovetheTV-Tunercard.Referto“ReplacingtheTVtunercard”.

Step15.RemovetheWLANcard.Referto“ReplacingtheWLANcard” .

Step16.Unplugthefollowingcablesfromconnectorsonthemotherboard:

•Powerswitchboardcable

•Speakersystemcable

•Frontcontrolboardcable

•Convertercable

•Cameracable

•Systemfanpowercable

•Harddiskdrivepowercable

•HarddiskdriveSATAcable(Black)

•OpticaldriveSATAcable(Red)

•Opticaldiskdrivepowercable

•LVDScable

Chapter8.Replacinghardware53

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Lenovo C440 All-in-One Bedienungsanleitung Seite 59