Lenovo A720 User Manual download pdf (Page 47)

Step6.Liftuptheopticaldriveejectboardtoremoveit.

Step7.Toinstallthenewopticaldriveejectboard:

a.Connectthenewopticaldriveejectboardtothemotherboard.

b.Securethenewopticaldriveejectboardtothemotherboardwiththe2screws.

Step8.Reattachthebasecoverandsecureitwiththescrews.

Replacingthemotherboard

Note:Turnoffthecomputerandwait3to5minutestoletitcooldownbeforeremovingthecover.

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.Removethebasecover.Referto“Removingthebasecover” .

Step5.Removetheharddiskdrive.Referto“Replacingtheharddiskdrive” .

Step6.Removeamemorymodule.Referto“Replacingamemorymodule” .

Step7.Removethesystemfan.Referto“Replacingthesystemfan” .

Step8.Removetheheat-sink.Referto“Replacingtheheat-sink” .

Step9.RemovetheCPU.Referto“ReplacingtheCPU”.

Step10.Removetheopticaldrive.Referto“Replacingtheopticaldrive” .

Step11.Removethesolidstatedisk.Referto“Replacingthesolidstatedisk” .

Step12.Removetheopticaldriveejectboard.Referto“Replacingtheopticaldriveejectboard”.

Step13.Removeallthecablesconnectedtothemotherboard.

Chapter8.Replacinghardware41

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Lenovo A720 User Manual Page 47