Replacingthesystemfan
Attention:
Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstanding“ImportantSafetyInformation”
onpage1.
Thissectionprovidesinstructionsonhowtoreplacethesystemfan.
Toreplacethesystemfan,dothefollowing:
1.Turnoffthecomputeranddisconnectallpowercordsfromelectricaloutlets.
2.Openthecomputercover.See“Openingthecomputercover”onpage120.
3.Removetheharddiskdrive.See“Replacingtheharddiskdrive”onpage135.
4.Locatethesystemfan.See“LocatingmajorFRUsandCRUs”onpage79.
5.Disconnectthesystemfancablefromthesystemfanconnectoronthesystemboard.See“Locating
partsonthesystemboard”onpage82.
6.Thesystemfanisattachedtothechassisbyfourrubbermounts.Removethesystemfanbycutting
therubbermountsandliftingthesystemfanoutofthechassis.
Note:Thenewfrontfanassemblywillhavefournewrubbermountsattached.
Figure96.Removingthesystemfan
Chapter11.ReplacingFRUs(formachinetypes:3688,3690,3691,3693,and3695)157