Lenovo ThinkCentre M73 - Page 77

Toreplacethesystemfanassembly,dothefollowing:
1.Removeallmediafromthedrivesandturnoffallattacheddevicesandthecomputer.Then,disconnect
allpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothecomputer.
2.Removethecomputercover.See“Removingthecomputercover”onpage36.
3.Removethefrontbezel.See“Removingandreinstallingthefrontbezel”onpage36.
4.Pivotthedrivebayassemblyupwardtogainaccesstothesystemfanassembly.See“Accessingthe
systemboardcomponentsanddrives”onpage38.
5.Removetheharddiskdriveforeasieraccesstothesystemfanassembly.See“Replacingthehard
diskdrive”onpage44.
6.Removetheheatsinkfanduct.See“Replacingtheheatsinkandfanassembly”onpage54.
7.Notethecableroutinganddisconnectthesystemfanassemblycablefromthesystemfanconnectoron
thesystemboard.See“Locatingpartsonthesystemboard”onpage13.
8.Thesystemfanassemblyisattachedtothechassisbyfourrubbermounts.Removethesystemfan
assemblybycuttingtherubbermountsandliftingthesystemfanassemblyoutofthechassis.
Note:Thenewsystemfanassemblywillhavefournewrubbermountsattached.
Figure49.Removingthesystemfanassembly
Chapter5.Installingorreplacinghardware65