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Important service information
Usethefollowingstrategytopreventunnecessaryexpenseforreplacingand
servicingFRUs:
• IfyouareinstructedtoreplaceanFRU,butthereplacementdoesnotsolve
theproblem,reinstalltheoriginalFRUbeforeyoucontinue.
• Somecomputershavebothaprocessorboardandasystemboard.Ifyou
areinstructedtoreplaceeitherofthem,andreplacingoneofthemdoesnot
solvetheproblem,reinstallthatboard,andthenreplacetheotherone.
• IfanadapteroradeviceconsistsofmorethanoneFRU,anyoftheFRUs
maybethecauseoftheerror.Beforereplacingtheadapterordevice,
removetheFRUsonebyonetoseeifthesymptomschange.Replaceonly
theFRUthatchangedthesymptoms.
Attention:Thesetupconfigurationonthecomputeryouareservicingmay
havebeencustomized.RunningAutomaticConfigurationmayalterthe
settings.Notethecurrentcongurationsettings(usingtheViewConguration
option);then,whenservicehasbeencompleted,verifythatthosesettings
remainineffect.
Strategy for replacing a hard disk drive
Alwaystrytorunalow-levelformatbeforereplacingaharddiskdrive.This
willcauseallcustomerdataontheharddisktobelost.Makesurethatthe
customerhasacurrentbackupofthedatabeforeperformingthisaction.
Attention:Thedrivestartupsequenceinthecomputeryouareservicingmay
havebeenchanged.Beextremelycarefulduringwriteoperationssuchas
copying,saving,orformatting.Ifyouselectanincorrectdrive,dataorprograms
canbeoverwritten.
Important notice for replacing a system board
Somecomponentsmountedonasystemboardareverysensitive.Improper
handlingcancausedamagetothosecomponents,andmaycauseasystem
malfunction.
Attention:Whenhandlingasystemboard:
• Donotdropthesystemboardorapplyanyexcessiveforcetoit.
• Avoidroughhandlingofanykind.
• Avoidbendingthesystemboardandhardpushingtoprevent crackingat
eachBGA(BallGridArray)chipset.