1.Removethecomputercover.See“Removingthecomputercover”onpage11.
2.Laythecomputeronitssideforeasieraccesstotheheatsinkandfanassembly.
3.Y ourcomputersupportstwoheatsinkandfanassemblies.Locatetheheatsinkandfanassemblyyou
wanttoreplace.See“Locatingcomponents”onpage7.
4.Removetheheatsinkandfanassemblycablefromthesystemboard.Notethecablelocation.
5.Followthissequencetoremovethefourscrewsthatsecuretheheatsinkandfanassemblytothe
systemboard:
a.Partiallyremovescrew1,thenfullyremovescrew2,andthenfullyremovescrew1.
b.Partiallyremovescrew3,thenfullyremovescrew4,andthenfullyremovescrew3.
Note:Thefourscrewscanberemovedfromthesystemboard,buttheycannotberemovedfromthe
heatsinkandfanassembly.
Figure33.Removingtheheatsinkandfanassembly
6.Carefullylifttheheatsinkandfanassemblyoffthesystemboard.
Notes:
a.Y oumighthavetogentlytwisttheheatsinkandfanassemblytofreeitfromthemicroprocessor.
b.Donottouchthethermalgreasewhilehandlingtheheatsinkandfanassembly.
7.Removetheplasticcoverfromthebottomofthenewheatsinkandfanassemblytoexposethethermal
grease(thiscoverprotectsthethermalgreasefromcontamination).
Notes:
a.Donotremovetheplasticcoveruntilyouarereadytoinstalltheheatsinkandfanassemblyon
themicroprocessor.
b.Donottouchthethermalgreaseontheheatsinkandfanassembly.
c.Donotputtheheatsinkandfanassemblyanywhereexceptonthemicroprocessoraftertheplastic
coverhasbeenremovedandthethermalgreaseexposed.
32ThinkStationHardwareInstallationandReplacementGuide
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