Lenovo ThinkCentre Edge 91z - Default Chapter; Table of Contents

Contents
Chapter1.Aboutthismanual......1
ImportantSafetyInformation..........1
Chapter2.Safetyinformation......3
Generalsafety................3
Electricalsafety...............3
Safetyinspectionguide............5
Handlingelectrostaticdischarge-sensitive
devices..................5
Groundingrequirements............6
Safetynotices(multi-lingualtranslations).....6
Chapter3.Generalinformation....29
LenovoThinkVantageTools.........29
LenovoWelcome..............29
LenovoThinkVantageToolbox........29
LenovoSolutionCenter...........29
SimpleTap................30
Additionalinformationresources.......30
Specications...............31
Chapter4.GeneralCheckout.....33
Problemdeterminationtips..........33
Chapter5.Troubleshootingand
diagnostics..............35
Basictroubleshooting............35
Troubleshootingprocedure..........36
Troubleshooting..............37
Audioproblems............37
CDproblems.............38
DVDproblems.............39
Intermittentproblems..........41
Keyboard,mouse,orpointingdevice
problems...............41
Monitorproblems............43
Networkingproblems..........44
Optionproblems............47
Performanceandlockupproblems.....48
Printerproblems............49
Serialportproblems...........49
Softwareproblems...........50
USBproblems.............51
Diagnostics................51
LenovoThinkVantageToolbox.......51
LenovoSolutionCenter.........52
PC-DoctorforDOS...........52
Chapter6.UsingtheSetupUtility
program................57
StartingtheSetupUtilityprogram.......57
Viewingandchangingsettings........57
Usingpasswords..............57
Passwordconsiderations.........57
Power-OnPassword..........58
HardDiskPassword...........58
AdministratorPassword.........58
Setting,changing,anddeletingapassword.58
Enablingordisablingadevice........58
Selectingastartupdevice..........59
Selectingatemporarystartupdevice....59
Selectingorchangingthestartupdevice
sequence...............59
ExitingfromtheSetupUtilityprogram.....59
Chapter7.Symptom-to-FRUIndex..61
Harddiskdrivebooterror..........61
PowerSupplyProblems...........61
Diagnosticerrorcodes...........62
Beepsymptoms..............79
POSTerrorcodes.............79
Miscellaneouserrorconditions........80
Undeterminedproblems...........82
Chapter8.ReplacingFRUs......83
Locatingconnectors,controls,andindicatorson
thefrontofyourcomputer..........83
Usingyourcomputerinmonitormode...85
Locatingconnectorsontherearofyour
computer.................85
FRUlocations...............86
Systemboardpartsandconnectors......88
Removingandreinstallingthesystemstandhinge
cover..................88
Removingandreinstallingthesystemstand...90
Removingandreinstallingthefootstands....92
Removingthecomputercover........95
Replacingtheharddiskdrive.........95
Replacingtheopticaldrive..........97
RemovingtheVESAmountbracket......99
ReplacingtherearI/Oassembly........100
Removingandreinstallingthesystemboard
shield..................102
Removingandreinstallingthesystemfan....103
Replacingthepowersupply.........104
Replacingthemicroprocessorfan.......106
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