Lenovo 10A2 - Replacing the Cover Presence Switch

11.Notetheorientationofthenewmicroprocessor.Holdthenewmicroprocessorbyitsedgesandalign
thenotches1onitwiththetabs2inthemicroprocessorsocket.Then,carefullylowerthenew
microprocessorstraightdownintothemicroprocessorsocket.
Note:Thesmalltriangle3ononecornerofthenewmicroprocessoristhemicroprocessororientation
indicator.Thenewmicroprocessorisinthecorrectorientationwhenthisindicatorfacesthebeveled
corner
4ofthemicroprocessorsocket.
Figure67.Installingthemicroprocessor
12.Closethemicroprocessorretainerandlockitintopositionwiththesmallhandletosecurethenew
microprocessorinthesocket.
13.Reinstalltheheatsinkandfanassembly.See“Replacingtheheatsinkandfanassembly”onpage65.
14.Reconnectallcablesthatweredisconnectedfromthesystemboard.See“Locatingpartsonthe
systemboard”onpage14
Whattodonext:
•Toworkwithanotherpieceofhardware,gototheappropriatesection.
•Tocompletethereplacement,goto“Completingthepartsreplacement”onpage103.
Replacingthecoverpresenceswitch
Attention:
Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafetyinformation”
onpagev.
Thissectionprovidesinstructionsonhowtoreplacethecoverpresenceswitch,whichisalsoknownas
intrusionswitch.
Toreplacethecoverpresenceswitch,dothefollowing:
1.Removeallmediafromthedrivesandturnoffallattacheddevicesandthecomputer.Then,disconnect
allpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothecomputer.
70ThinkCentreM83,M93/pUserGuide