Computer Hardware User Manual

Replacingthefrontfanassembly
Attention:
Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafetyinformation”
intheThinkCentreUserGuide.ToobtainacopyoftheThinkCentreUserGuide,goto:
http://www.lenovo.com/ThinkCentreUserGuides
Thissectionprovidesinstructionsonhowtoreplacethefrontfanassembly.
Note:Thefrontfanassemblyisonlyavailableinsomemodels.
Toreplacethefrontfanassembly,dothefollowing:
1.Turnoffthecomputeranddisconnectallpowercordsfromelectricaloutlets.
2.Removethecomputercover.See“Removingthecomputercover”onpage79.
3.Removethefrontbezel.See“Removingandreinstallingthefrontbezel”onpage80.
4.Disconnectthefrontfanassemblycablefromthepowerfanconnectoronthesystemboard.See
“Locatingpartsonthesystemboard”onpage77.
5.Releasethetwotabs1thatattachthefrontfanassemblytothechassisasshownandthencompletely
removethefrontfanfromthechassis.
Figure41.Removingthefrontfanassembly
Chapter8.ReplacingFRUs(MachineTypes:4468,4473,4476,4479,4495,4497,4499,4504,4513,4517,4524,
7021,7032,7034,7049,7052,7053,7073,7136,and7178.)107