Lenovo Personal Computer 4155 Manual do Utilizador descarregar pdf (Página 133)

9.Carefullyliftthesystemboardoutofthechassis.

10.Removethemicroprocessorsocketcoverfromthenewsystemboard.

11.Removethemicroprocessorfromthefailingsystemboardandinstallitonthenewsystemboard.

See“Replacingthemicroprocessor”onpage92.

12.Thefailingsystemboardmustbereturnedwithamicroprocessorsocketcovertoprotectthepinsduring

shippingandhandling.Installthemicroprocessorsocketcoverremovedfromthenewsystemboard

onthefailingsystemboard.

Note:Themicroprocessorsocketcoverinstallationprocedureshouldbeperformedonbothprocessors.

Toinstallthemicroprocessorsocketcover:

a.Releasetheleversecuringthemicroprocessorretainerandopentheretainertoaccessthe

microprocessor.

b.Graspthemicroprocessoronthesidesandliftitstraightupandoutofthesocket.Donottouchthe

contactsonthemicroprocessorsocket.

c.Alignthenotches1ofthemicroprocessorsocketcoverwiththealignmentkeys2ofthe

microprocessorsocket.Lowerthesocketcoverstraightdownintothemicroprocessorsocket

onthesystemboard.

Chapter11.ReplacingFRUs(Type4155,4158,4218)125

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Lenovo Personal Computer 4155 Manual do Utilizador Página 133