10.Lowerthenewmicroprocessorstraightdownintothemicroprocessorsocketonthesystemboard.
Figure33.Installingthemicroprocessor
11.Closethemicroprocessorretainerandlockitintopositionwiththesmallhandletosecurethenew
microprocessorinthesocket.
12.Reinstalltheheatsinkandfanassembly.See“Replacingtheheatsinkandfanassembly”onpage99.
13.Reconnectallcablesthatweredisconnectedfromthesystemboard.
Whattodonext:
•Toworkwithanotherpieceofhardware,gototheappropriatesection.
•Tocompletethereplacement,goto“Completingthepartsreplacement”onpage118.
Replacingthesystemboard
Attention:
Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstanding“Importantsafetyinformation”
onpage1.
Thissectionprovidesinstructionsonhowtoreplacethesystemboard.
CAUTION:
Theheatsinkandmicroprocessormightbeveryhot.Turnoffthecomputerandwaitthreetove
minutestoletthecomputercoolbeforeremovingthecomputercover.
Toreplacethesystemboard,dothefollowing:
1.Removeallmediafromthedrivesandturnoffallattacheddevicesandthecomputer.Then,disconnect
allpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothecomputer.
2.Removethecomputercover.See“Removingthecomputercover”onpage83.
3.Laythecomputeronitssideforeasieraccesstothesystemboard.
Chapter9.ReplacingFRUs(machinetypes:3376,3378,and3387)103
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