Lenovo E455 Technical Information PDF herunterladen (Seite 3)

Contents

Aboutthismanual...........iii

Chapter1.Safetyinformation.....1

Generalsafety...............1

Electricalsafety..............1

Safetyinspectionguide...........2

Handlingdevicesthataresensitivetoelectrostatic

discharge.................3

Groundingrequirements...........4

Safetynotices(multilingualtranslations).....4

Chapter2.Importantservice

information..............19

StrategyforreplacingFRUs.........19

Strategyforreplacingaharddiskdrive,a

hybriddrive,orasolid-statedrive.....19

Importantnoticeforreplacingasystem

board................20

Howtouseerrormessage........20

StrategyforreplacingFRUsforCTO,specialbid

model,andstandardmodels.........20

Productdeﬁnition............20

FRUidentiﬁcation............21

Chapter3.Generalcheckout.....23

Whattodoﬁrst..............23

Checkoutguide..............24

LenovoSolutionCenter.........24

Quicktestprograms...........24

UEFIdiagnosticprogram.........25

Bootablediagnosticprograms.......25

Powersystemcheckout...........26

Checkingtheacpoweradapter......27

Checkingthebuilt-inbatteryandoperational

charging...............27

Checkingthecoin-cellbattery.......28

Chapter4.Relatedservice

information..............29

Restoringthefactorycontentsbyusingthe

RecoveryDiscSet.............29

RecoveryoverviewfortheWindows7operating

system..................30

Creatingandusingarecoverymedia....31

Performingbackupandrecoveryoperations.31

UsingtheRescueandRecoveryworkspace.32

Creatingandusingarescuemedium....33

Reinstallingpreinstalledapplicationsand

devicedrivers.............34

Solvingrecoveryproblems........35

RecoveryoverviewfortheWindows8.1operating

system..................35

Refreshingyourcomputer........35

Resettingyourcomputertothefactorydefault

settings................36

Usingtheadvancedstartupoptions....36

RecoveringyouroperatingsystemifWindows

8.1failstostart.............36

Creatingandusingrecoverymedia.....37

Passwords................38

Power-onpassword...........38

Harddiskpassword...........38

Supervisorpassword..........38

Howtoremovethepower-onpassword...39

Howtoremovetheharddiskpassword...39

Powermanagement............40

Screenblankmode(fortheWindows7

operatingsystemonly)..........40

Sleepmode..............40

Hibernationmode...........40

Symptom-to-FRUindex...........41

Numericerrorcodes..........42

Errormessages............43

Beepsymptoms............43

No-beepsymptoms...........44

LCD-relatedsymptoms.........44

Intermittentproblems..........44

Undeterminedproblems.........45

Chapter5.Statusindicators.....47

Chapter6.Functionkeys.......49

Chapter7.Locations.........51

Locatingcomputercontrols,connectors,and

indicators.................51

Frontview...............51

Bottomview..............52

LocatingFRUsandCRUs..........53

MajorFRUs..............54

LCDFRUs..............56

MiscellaneouspartsandotherFRUs....56

LookingupFRUinformation.........57

Chapter8.FRUreplacement

notices................59

Screwnotices...............59

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