Contents
Aboutthismanual...........iii
Chapter1.Safetyinformation......1
Generalsafety................1
Electricalsafety...............2
Safetyinspectionguide............3
Handlingdevicesthataresensitivetoelectrostatic
discharge..................3
Groundingrequirements............4
Safetynotices(multilingualtranslations)......4
Chapter2.Importantservice
information..............21
StrategyforreplacingFRUs.........21
Strategyforreplacingaharddiskdrive,a
solid-statedrive,oranmSATAsolid-state
drive.................22
Importantnoticeforreplacingasystem
board................22
Howtouseerrormessage........22
StrategyforreplacingFRUsforCTO,CMV,and
GAV...................22
Productdefinition............22
FRUidentificationforCTO,CMV,andGAV
products...............23
Chapter3.Generalcheckout.....25
Whattodofirst..............25
Checkoutguide..............26
LenovoSolutionCenter.........26
Quicktestprograms...........26
UEFIdiagnosticprogram.........27
Bootablediagnosticprograms.......27
Powersystemcheckout...........28
Checkingtheacpoweradapter......28
Checkingoperationalcharging......29
Checkingthebatterypack........29
Checkingthebackupbattery.......29
Chapter4.Relatedservice
information..............31
Restoringthefactorycontentsbyusingthe
RecoveryDiscSet.............31
RecoveryoverviewfortheWindows8operating
system..................32
Refreshingyourcomputer........32
Resettingyourcomputertothefactorydefault
settings................32
Usingtheadvancedstartupoptions....33
RecoveringyouroperatingsystemifWindows
8failstostart.............33
Creatingandusingrecoverymedia.....33
Passwords................34
Power-onpassword...........35
Harddiskpassword...........35
Supervisorpassword..........35
Howtoremovethepower-onpassword...35
Howtoremovetheharddiskpassword...36
Powermanagement............36
Sleepmode..............36
Hibernationmode...........37
Wirelessoffmode...........37
Symptom-to-FRUindex...........37
Numericerrorcodes..........38
Errormessages............39
No-beepsymptoms...........39
Beepsymptoms............40
LCD-relatedsymptoms.........40
Intermittentproblems..........41
Undeterminedproblems.........41
Chapter5.Statusindicators.....43
Chapter6.Specialkeys........45
Chapter7.Locations.........47
Locatingcomputercontrols,connectors,and
indicators.................47
Frontview...............47
Rearview...............48
Bottomview..............48
LocatingFRUsandCRUs..........48
MajorFRUsandCRUs..........50
LCDFRUs..............52
MiscellaneouspartsandotherFRUs....53
LookingupFRUinformation.........53
Chapter8.FRUreplacement
notices................55
Screwnotices...............55
Retainingserialnumbers...........56
Restoringtheserialnumberofthesystem
unit.................56
RetainingtheUUID...........57
ReadingorwritingtheECAinformation...57
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