Wheninstalling:Placethemicroprocessorabovethemicroprocessorsocket,andthenrotatetheheadof
thescrewinthedirectionshownbythearrow3tosecurethemicroprocessor.
1140Systemboardassembly
Importantnoticesforhandlingthesystemboard:
Whenhandlingthesystemboard,readthefollowing:
•Thesystemboardhasanaccelerometer,whichcanbebrokenwhenseveralthousandsofG-forcesareapplied.
Note:Droppingasystemboardfromaheightofaslittleas6inchessothatitfallsatonahardbenchcansubject
theaccelerometertoasmuchas6000G'sofshock.
•Becarefulnottodropthesystemboardonabenchtopthathasahardsurface,suchasmetal,wood,orcomposite.
•Avoidroughhandlingofanykind.
•Ateverypointintheprocess,besurenottodroporstackthesystemboard.
•Ifyouputasystemboarddown,besuretoputitonlyonapaddedsurfacesuchasanESDmatoracorrugated
conductivesurface.
Foraccess,removetheseFRUsinorder:
•“1010Batterypack”onpage62
•“1020Largebottomcover”onpage63
Chapter9.RemovingorreplacingaFRU85
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