•Thesystemboardhasanaccelerometer,whichcanbebrokenwhenseveralthousandsofG-forces
areapplied.
Note:Droppingasystemboardfromaheightofaslittleas0.15m(6inches)sothatitfallsflatonahard
benchcansubjecttheaccelerometertoasmuchas6000G'sofshock.
•Becarefulnottodropthesystemboardonabenchtopthathasahardsurface,suchasmetal,wood,or
composite.
•Avoidroughhandlingofanykind.
•Ateverypointintheprocess,besurenottodroporstackthesystemboard.
•Ifyouputasystemboarddown,besuretoputitonlyonapaddedsurfacesuchasanESDmatora
corrugatedconductivematerial.
Foraccess,removetheseFRUsinorder:
•“1010LenovoOneLinkconnectorcover”onpage60
•“1020DIMMdoor”onpage61
•“1030Internalstoragedrive”onpage61
•“1040Memorymodule”onpage62
•“1050WirelessLANcard”onpage63
•“1060Coin-cellbattery”onpage64
•“1070Keyboard”onpage65
•“1080Keyboardbezelassembly”onpage66
•“1100USB/audiocard”onpage69
Attention:Thefollowingcomponentssolderedonthetopsideofthesystemboardisextremelysensitive.
Whenyouservicethesystemboard,avoidanykindofroughhandling.
ThinkPadE460
Formodelswithadiscretethermalmodule
a Microprocessor
b VideoGraphiccard(VGA)
Chapter9.RemovingorreplacingaFRU71