Lenovo ThinkCentre M91 - Default Chapter; Table of Contents

Contents
Chapter1.Aboutthismanual......1
Importantsafetyinformation..........1
ImportantinformationaboutreplacingRoHS
compliantFRUs...............1
Chapter2.Safetyinformation......3
Generalsafety................3
Electricalsafety...............3
Voltage-selectionswitch............5
Safetyinspectionguide............5
Handlingelectrostaticdischarge-sensitive
devices..................6
Groundingrequirements............6
Safetynotices(multi-lingualtranslations).....6
Chapter3.Generalinformation....29
LenovoWelcome..............29
LenovoThinkVantageTools.........29
LenovoThinkVantageToolbox........29
SimpleTap................29
LenovoSolutionCenter...........30
ThinkVantageProductivityCenter.......30
Additionalinformationresources.......30
Specications...............31
Chapter4.Generalcheckout.....33
Checkingforpowerproblems.........33
Problemdeterminationtips..........34
Chapter5.Diagnostics........37
LenovoThinkVantageToolbox........37
LenovoSolutionCenter...........37
PC-DoctorforDOS.............38
Creatingadiagnosticdisc........38
Runningthediagnosticprogramfroma
diagnosticdisc.............38
Navigatingthroughthediagnostics
programs...............38
Runningtests.............39
Viewingthetestlog...........40
Chapter6.UsingtheSetupUtility
program................41
StartingtheSetupUtilityprogram.......41
Viewingandchangingsettings........41
Usingpasswords..............41
Passwordconsiderations.........42
Power-OnPassword..........42
AdministratorPassword.........42
HardDiskPassword...........42
Setting,changing,anddeletingapassword.42
Erasinglostorforgottenpasswords(clearing
CMOS)................43
Enablingordisablingadevice........43
Selectingastartupdevice..........44
Selectingatemporarystartupdevice....44
Selectingorchangingthestartupdevice
sequence...............44
Smartperformancechoices.........44
ExitingfromtheSetupUtilityprogram.....45
Chapter7.Symptom-to-FRUindex..47
Harddiskdrivebooterror..........47
Diagnosticerrorcodes...........47
Beepsymptoms..............63
POSTerrorcodes.............63
Miscellaneouserrormessages........65
Undeterminedproblems...........66
Chapter8.ReplacingFRUs......69
Locations.................69
Locatingconnectors,controls,andindicators
onthefrontofyourcomputer.......69
Locatingconnectorsontherearofyour
computer...............70
Locatingcomponents..........71
Locatingpartsonthesystemboard....71
Openingthecomputercover.........72
Removingandreinstallingthefrontbezel....73
Installingorreplacingamemorymodule....74
InstallingorreplacingthePCIcard.......75
Replacingtheharddiskdrive.........77
Replacingtheopticaldrive..........78
Replacingthebattery............80
Replacingtheheatsink...........81
Replacingthemicroprocessor........83
Replacingthesystemboard.........86
Replacingthesystemfanassembly......88
Replacingtheinternalspeaker........91
ReplacingthefrontaudioandUSBassembly..92
Replacingtheacpoweradapter........94
Replacingtheacpoweradapterbracket....95
Completingthepartsreplacement.......98
Chapter9.FRUlists..........99
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