Lenovo G50-45 Specifications download pdf (Page 21)

Important service information

Usethefollowingstrategytopreventunnecessaryexpenseforreplacingand

servicingFRUs:

• IfyouareinstructedtoreplaceanFRU,butthereplacementdoesnotsolve

theproblem,reinstalltheoriginalFRUbeforeyoucontinue.

• Somecomputers havebothaprocessorboardandasystem board.Ifyou

areinstructedtoreplaceeitherofthem,andreplacingoneofthemdoesnot

solvetheproblem,reinstallthatboard,andthenreplacetheotherone.

• IfanadapteroradeviceconsistsofmorethanoneFRU,anyoftheFRUs

maybethecauseofthe error.Beforereplacingtheadapter ordevice,

removetheFRUsonebyonetoseeifthesymptomschange.Replaceonly

theFRUthatchangedthesymptoms.

Attention:

Thesetupconfigurationonthecomputeryouareservicing may

havebeencustomized.RunningAutomaticConfiguration mayalter the

settings.Notethecurrentcongurationsettings(usingtheViewConguration

option);then,whenservice hasbeen completed,verifythatthosesettings

remainineffect.

Strategy for replacing a hard disk drive

Alwaystrytorun alow-level formatbeforereplacingaharddiskdrive.This

willcauseallcustomerdataontheharddisk tobe lost.Make surethatthe

customerhasacurrentbackupofthedatabeforeperformingthisaction.

Attention:

Thedrivestartupsequenceinthecomputeryouareservicingmay

havebeenchanged.Beextremelycareful duringwrite operationssuch as

copying,saving,orformatting.Ifyouselectanincorrectdrive,dataorprograms

canbeoverwritten.

Important notice for replacing a system board

Somecomponentsmountedon asystem boardare verysensitive. Improper

handlingcancausedamagetothosecomponents,andmaycauseasystem

malfunction.

Attention:

Whenhandlingasystemboard:

• Donotdropthesystemboardorapplyanyexcessiveforcetoit.

• Avoidroughhandlingofanykind.

• Avoidbendingthe systemboardandhardpushingtopreventcrackingat

eachBGA(BallGridArray)chipset.

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Lenovo G50-45 Specifications Page 21