Lenovo ThinkStation S20 Manual do Utilizador descarregar pdf (Página 38)

Toreplacetheheatsinkandfanassembly:

1.Removethecomputercover.See“Removingthecomputercover”onpage11.

2.Laythecomputeronitssideforeasieraccesstotheheatsinkandfanassembly.

3.Removetheheatsinkandfanassemblycablefromthesystemboard.Notethecablelocation.See

“Identifyingpartsonthesystemboard”onpage10.

4.Followthissequencetoremovethefourscrewsthatsecuretheheatsinkandfanassemblytothe

systemboard:

a.Partiallyremovescrew

1 ,thenfullyremovescrew 2 , andthenfullyremovescrew 1 .

b.Partiallyremovescrew3 ,thenfullyremovescrew 4 ,andthenfullyremovescrew 3 .

Note:Thefourscrewscanberemovedfromthesystemboard,buttheycannotberemovedfromthe

heatsinkandfanassembly.

Figure28.Removingtheheatsinkandfanassembly

5.Carefullylifttheheatsinkandfanassemblyoffthesystemboard.

Notes:

a.Y oumighthavetogentlytwisttheheatsinkandfanassemblytofreeitfromthemicroprocessor.

b.Donottouchthethermalgreasewhilehandlingtheheatsinkandfanassembly.

6.Removetheplasticcoverfromthebottomofthenewheatsinkandfanassemblytoexposethethermal

grease(thiscoverprotectsthethermalgreasefromcontamination).

Notes:

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Lenovo ThinkStation S20 Manual do Utilizador Página 38