Lenovo ThinkCentre Edge 91z - Removing and Reinstalling the System Fan

5.Removethescrewthatsecuresthesystemboardshield,andthenslidethesystemboardshieldout
ofthecomputer.
Figure24.Removingthesystemboardshield
6.Toreinstallthesystemboardshield,slidethesystemboardshieldintothesystemboardshieldslotso
thatthescrewholealignswiththatinthecomputer.
7.Reinstallthescrewtosecurethesystemboardshieldtothecomputer.
8.Goto“Completingthepartsreplacement”onpage127.
Removingandreinstallingthesystemfan
Attention
Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafety
information”intheThinkCentreEdgeSafetyandWarrantyGuidethatcamewithyourcomputer.Toobtaina
copyoftheThinkCentreEdgeSafetyandWarrantyGuide,goto:
http://www.lenovo.com/support
Thissectionprovidesinstructionsonhowtoremoveandreinstallthesystemfan.
Toremoveandreinstallthesystemfan,dothefollowing:
1.Removeallmediafromthedrivesandturnoffallattacheddevicesandthecomputer.Then,disconnect
allpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothecomputer.
2.Placeasoft,cleantowelorclothonthedeskorotheratsurface.Holdthesidesofyourcomputerand
gentlylayitdownsothatthescreenisagainstthesurfaceandthecoverisfacingup.
3.Removethecomputercover.See“Removingthecomputercover”onpage95.
4.Locatethesystemfaninthecomputer.See“FRUlocations”onpage86.
5.Removethesystemboardshield.See“Removingandreinstallingthesystemboardshield”onpage102.
Chapter8.ReplacingFRUs103