14.Reinstallthesystemfan.See“Replacingthesystemfan”onpage225.
15.IfyouhaveremovedtheWi-Ficardmodule,reinstalltheWi-Ficardmodule.See“ReplacingtheWi-Fi
cardmodule”onpage215.
16.Installallmemorymodulesremovedfromthefailingsystemboardontothenewsystemboard.See
“Installingorreplacingamemorymodule”onpage211
.
17.Reinstalltheharddiskdriveassembly.See“Installingorremovingtheharddiskdriveassembly”on
page209
.
18.Refertoyourrecordtoconnectcablestothenewsystemboard.Youalsocanreferto“Locating
partsonthesystemboard”onpage87tohelpyoulocatetheconnectorsonthesystemboardand
connectcables.
19.Tocompletethereplacement,goto“Completingthepartsreplacement”onpage235.
Thefailingsystemboardmustbereturnedwithamicroprocessorsocketcovertoprotectthepinsduring
shippingandhandling.
Toinstallthemicroprocessorsocketcover,dothefollowing:
1.Afteryouhaveremovedthemicroprocessorfromthefailingsystemboard,closethemicroprocessor
retainerandthenputthelevertothelockedpositiontosecuretheretainerinplace.
2.Notetheorientationofthesocketcover,andinstallonesideofthesocketcoverintothemicroprocessor
socket.Carefullypresstheothersideofthesocketcoverdownwarduntilthesocketcoversnaps
intoposition.
Note:Yourmicroprocessorsocketandcovermightlookslightlydifferentfromtheillustration.
Figure209.Installingthemicroprocessorsocketcover
3.Carefullycheckthefourcornersofthesocketcovertoensurethatthecoverisseatedsecurely.
4.Followanyadditionalinstructionsthatareincludedwiththereplacementpartyoureceived.
Replacingthekeyboardormouse
Attention:Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe
“Importantsafetyinformation”onpage1.
Thissectionprovidesinstructionsonhowtoreplacethekeyboardormouse.
Toreplacethekeyboardormouse,dothefollowing:
1.Disconnecttheoldkeyboardcableormousecablefromthecomputer.
234ThinkCentreM73HardwareMaintenanceManual
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