User guide

4.Followthissequencetoremovethefourscrewsthatsecuretheheatsinkandfanassemblytothe
systemboard:
a.Partiallyremovescrew1,thenfullyremovescrew2,andthenfullyremovescrew1.
b.Partiallyremovescrew3,thenfullyremovescrew4,andthenfullyremovescrew3.
Note:Carefullyremovethefourscrewsfromthesystemboardtoavoidanypossibledamagetothe
systemboard.Thefourscrewscannotberemovedfromtheheatsinkandfanassembly.
Figure60.Screwsthatsecuretheheatsinkandfanassembly
5.Liftthefailingheatsinkandfanassemblyoffthesystemboard.
Notes:
a.Youmighthavetogentlytwisttheheatsinkandfanassemblytofreeitfromthemicroprocessor.
b.Donottouchthethermalgreasewhilehandlingtheheatsinkandfanassembly.
6.Pivotthetwoplasticretainingclipsthatsecuretheheatsinkfanductoutward.Thenremovetheheat
sinkfanductfromthefailingheatsinkandfanassembly.
Figure61.Removingtheheatsinkfanduct
Chapter5.Installingorreplacinghardware63