10.PivotthedrivebayassemblyupwardandreconnectthefrontUSBandfrontaudiocablestothesystem
board.See“Locatingpartsonthesystemboard”onpage11.
11.Lowerthedrivebayassembly.See“Accessingthesystemboardcomponentsanddrives”onpage34.
12.Reinstallthefrontbezel.See“Removingandreinstallingthefrontbezel”onpage32.
Whattodonext:
•Toworkwithanotherpieceofhardware,gototheappropriatesection.
•Tocompletetheinstallationorreplacement,goto“Completingthepartsreplacement”onpage70.
Replacingthesystemfanassembly
Attention:
Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafetyinformation”
onpagev.
Thissectionprovidesinstructionsonhowt oreplacethesystemfanassembly.
Toreplacethesystemfanassembly,dothefollowing:
1.Removeallmediafromthedrivesandturnoffallattacheddevicesandthecomputer.Then,disconnect
allpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothecomputer.
2.Removethecomputercover.See“Removingthecomputercover”onpage32.
3.Removethefrontbezel.See“Removingandreinstallingthefrontbezel”onpage32.
4.Pivotthedrivebayassemblyupwardtogainaccesstothesystemfanassembly.See“Accessingthe
systemboardcomponentsanddrives”onpage34.
5.Removetheharddiskdriveforeasieraccesstothesystemfanassembly.See“Replacingthehard
diskdrive”onpage41.
6.Removetheheatsinkfanduct.See“Replacingtheheatsinkandfanassembly”onpage47.
7.Notethecableroutinganddisconnectthesystemfanassemblycablefromthesystemfanconnectoron
thesystemboard.See“Locatingpartsonthesystemboard”onpage11.
8.Thesystemfanassemblyisattachedtothechassisbyfourrubbermounts.Removethesystemfan
assemblybycuttingtherubbermountsandliftingthesystemfanassemblyoutofthechassis.
Note:Thenewsystemfanassemblywillhavefournewrubbermountsattached.
58ThinkCentreUserGuide