Step11.Removethesevenscrewsthatsecurethemotherboardtothechassisandliftthemotherboard
uptoremoveit.
Step12.Toinstallthenewmotherboard:
a.Lineuptheholesonthenewmotherboardwiththemountingholeschassisandplacethenew
motherboardintoposition.
b.Usethescrewstosecurethenewmotherboardtothechassis.
Step13.Installthefollowingpartstothenewmotherboard:
•WLANcard
•CPU
•Heat-sink
•Memorymodule
Step14.Connectallthecablestothenewmotherboard.
Step15.Reattachthemotherboardcover,hingefixingbracket,backcoverandstand.
ReplacingtheLCDpanel
Note:Turnoffthecomputerandwait3to5minutestoletitcooldownbeforeremovingthecover.
Note:Itmaybehelpfultoplacethecomputerface-downonasoftflatsurfaceforthisprocedure.Lenovo
recommendsthatyouuseablanket,towel,orothersoftclothtoprotectthecomputerscreenfromscratches
orotherdamage.
ToreplacetheLCDpanel:
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”.
46LenovoS40–40HardwareMaintenanceManual
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