Lenovo Z50-70 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.

1 2 ... 16 17 18 19 20 21 22 23 24 25 26 ... 89 90

No comments

Lenovo Z50-70 Specifications Page 21