Lenovo P900 Spezifikationen PDF herunterladen (Seite 185)

14.Gentlypressdownthesmallhandle1andthenpushthehandleinwardtosecureit.Thengentlypress

downthesmallhandle2andpushthehandleinwardtolockthemicroprocessorretainerintoposition.

Ensurethatthenewmicroprocessorissecuredinthesocket.

Note:Therearetwomarksonthemicroprocessorretainer.Ensurethatyouclosethesmallhandle

markedwithﬁrstandthenclosethesmallhandlemarkedwith.Alwaysfollowthecorrect

sequencewhenyouclosethesmallhandles.

Figure99.Securingthemicroprocessorinthesocket

15.Reinstalltheheatsinkandfanassembly.See“Replacingtheheatsinkandfanassemblies”onpage165.

16.Ifyouareinstructedtoreturntheoldmicroprocessor,followallpackaginginstructionsanduseany

packagingmaterialsthataresuppliedtoyouforshipping.

Whattodonext:

•Toworkwithanotherpieceofhardware,gototheappropriatesection.

•Tocompletetheinstallationorreplacement,goto“Completingthepartsreplacement”onpage183.

Replacingthesystemboard

Attention:DonotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingtheChapter

1“Readthisﬁrst:Importantsafetyinformation”onpage1.

Thissectionprovidesinstructionsonhowtoreplacethesystemboard.

CAUTION:

Theheatsinkandmicroprocessormightbeveryhot.Beforeyouopenthecomputercover,turnoff

thecomputerandwaitseveralminutesuntilthecomputeriscool.

Note:EachcomputerhasauniqueVitalProductData(VPD)codestoredinthenonvolatilememoryonthe

systemboard.Afteryoureplacethesystemboard,theVPDmustbeupdated.ToupdatetheVPD,see

“UpdatingorrecoveringtheBIOS”onpage69

Toreplacethesystemboard,dothefollowing:

1.Removeallmediafromthedrivesandturnoffallattacheddevicesandthecomputer.Then,disconnect

allpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothecomputer.

2.Removethecomputercover.See“Removingthecomputercover”onpage111.

Chapter11.Installingorreplacinghardware177

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Lenovo P900 Spezifikationen Seite 185