Lenovo E93 Specifikace stáhnout pdf (Strana 158)

8.ReinstallthePCIExpressx16graphicscardifyouhaveremovedit.

9.Lowerthedrivebayassembly.

Whattodonext:

•Toworkwithanotherpieceofhardware,gototheappropriatesection.

•Tocompletetheinstallationorreplacement,goto“Completingthepartsreplacement”onpage165.

Replacingthesystemboard

Attention:DonotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingtheChapter

2“Safetyinformation”onpage3.

Thissectionprovidesinstructionsonhowtoreplacethesystemboard.

CAUTION:

Theheatsinkandmicroprocessormightbeveryhot.Beforeyouopenthecomputercover,turnoff

thecomputerandwaitseveralminutesuntilthecomputeriscool.

Toreplacethesystemboard,dothefollowing:

1.Removeallmediafromthedrivesandturnoffallattacheddevicesandthecomputer.Then,disconnect

allpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothecomputer.

2.Removethecomputercover.See“Removingthecomputercover”onpage122.

3.Removethefrontbezel.See“Removingandreinstallingthefrontbezel”onpage122.

4.Pivottheopticaldrivebayassemblyupwardtogainaccesstothesystemboard.See“Accessingthe

systemboardcomponentsanddrives”onpage124

5.RemoveallmemorymodulesandPCIcardsthatarecurrentlyinstalled.See“Installingorreplacinga

memorymodule”onpage152

and“InstallingorreplacingaPCIcard”onpage149.

6.Removetheheatsinkandfanassemblyfromthefailingsystemboard.See“Replacingtheheatsinkand

fanassembly”onpage125.

7.Carefullytakenoteofthelocationofallcableconnectionsonthesystemboardanddisconnectallthe

cables.See“Locatingpartsonthesystemboard”onpage78.

8.Removetheeightscrewsthatsecurethesystemboard.

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Lenovo E93 Specifikace Strana 158