Contents
Chapter1Aboutthismanual1
Importantsafetyinformation..........1
Chapter2Safetyinformation3
Generalsafety................3
Electricalsafety...............3
Safetyinspectionguide............5
Handlingelectrostaticdischarge-sensitive
devices..................5
Groundingrequirements............6
Safetynotices(multi-lingualtranslations).....6
Chapter3Generalinformation29
Specifications...............29
LenovoSupportWebsite..........29
Chapter4Generalcheckout31
Problemdeterminationtips..........31
Chapter5Troubleshootingand
diagnostics33
Basictroubleshooting............33
Troubleshootingprocedure..........34
Troubleshooting..............34
Audioproblems............35
Intermittentproblems..........36
Keyboard,mouse,orpointingdevice
problems...............36
Monitorproblems............38
Ethernetproblems...........40
Optionproblems............41
Printerproblems............42
Serialconnectorproblems........42
Softwareproblems...........42
USBproblems.............43
Chapter6UsingtheSetupUtility
program45
StartingtheSetupUtilityprogram.......45
Viewingandchangingsettings........45
Usingpasswords..............45
Passwordconsiderations.........46
Power-onpassword...........46
Administratorpassword.........46
HardDiskPassword...........46
Setting,changing,anddeletingapassword.46
Erasinglostorforgottenpasswords(clearing
CMOS)................47
Enablingordisablingadevice........47
Selectingastartupdevice..........48
Selectingatemporarystartupdevice....48
Selectingorchangingthestartupdevice
sequence...............48
EnablingErPcompliancemode........48
ChangingtheBIOSsettingsbeforeinstallinganew
operatingsystem..............49
ExitingtheSetupUtilityprogram.......49
Chapter7Symptom-to-FRUIndex51
Harddiskdrivebooterror..........51
Powersupplyproblems...........51
Beepsymptoms..............51
POSTerrorcodes.............52
Miscellaneouserrorconditions........53
Undeterminedproblems...........55
Chapter8Locations57
Locatingconnectors,controls,andindicatorson
thefrontofyourcomputer..........57
Locatingconnectorsontherearofyour
computer.................58
LocatingmajorFRUsandCRUs........59
LookingupFRUinformation.........61
Locatingpartsonthesystemboard......62
Chapter9ReplacingFRUs63
Handlingstatic-sensitivedevices.......63
Installingorreplacinghardware........63
Installingorremovingtheacpoweradapter.63
Installingorremovingtheverticalstand...65
Removingthecomputercover.......67
ReplacingtheDOMcard.........69
Replacingthememorymodule......71
Replacingthebattery..........73
Replacingthesystemboard.......74
Replacingthekeyboard.........76
Replacingthemouse..........76
Completingthepartsreplacement.....77
Chapter10Additionalservice
information81
Securityfeatures..............81
Hardwarecontrolledpasswords......81
Operatingsystempassword.......81
Vitalproductdata............81
BIOSlevels................81
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