IdeaCentreK4SeriesHardwareMaintenanceManualideaideaideaCentreideaMachineTypes:10120/90A0[K450ES];10121/90A1[K450Non-ES]
Observethefollowingruleswhenworkingonelectricalequipment.Important:Useonlyapprovedtoolsandtestequipment.Somehandtoolshavehandlescoveredwithasoftmateri
–Sendanotherpersontogetmedicalaid.SafetyinspectionguideTheintentofthisinspectionguideistoassistyouinidentifyingpotentiallyunsafeconditionsontheseprodu
•Avoidcontactwithotherpeoplewhilehandlingthepart.•Wearagroundedwriststrapagainstyourskintoeliminatestaticonyourbody.•Preventthepartfromtouchingyourclo
ToConnectToDisconnect1.TurneverythingOFF .2.First,attachallcablestodevices.3.Attachsignalcablestoconnectors.4.Attachpowercordstooutlet.5.TurndeviceON.
≥18kg(37lbs)≥32kg(70.5lbs)≥55kg(121.2lbs)CAUTION:Usesafepracticeswhenlifting.CAUTION:Thepowercontrolbuttononthedeviceandthepowerswitchonthepowersupply
Chapter3.GeneralinformationThischapterprovidesgeneralinformationthatappliestoallmachinetypessupportedbythispublication.SpecicationsThissectionliststh
10IdeaCentreK4SeriesHardwareMaintenanceManual
Chapter4.GeneralCheckoutAttention:Thedrivesinthecomputeryouareservicingmighthavebeenrearrangedorthedrivestartupsequencechanged.Beextremelycarefuldurin
12IdeaCentreK4SeriesHardwareMaintenanceManual
Chapter5.UsingtheSetupUtilityTheSetupUtilityprogramisusedtoviewandchangethecongurationsettingsofyourcomputer,regardlessofwhichoperatingsystemyouareus
AdministratorPasswordSettinganAdministratorPassworddetersunauthorizedpersonsfromchangingcongurationsettings.YoumightwanttosetanAdministratorPasswordi
TosetaPower-OnPassword,dothefollowing:1.StarttheLenovoBIOSSetupUtilityprogram(See”StartingtheLenovoBIOSSetupUtilityprogram”onpage13.)2.FromtheSecurity
USBSetuppresstheEnterkey,andthenselectUSBFunctions.ATADeviceSetuppresstheEnterkey.SelectCongureSATAas,presstheEnterkeyandthenselectSATAmode.AudioSetu
b.Ifyouhavechangedthesesettingsandwanttoreturntothedefaultsettings,selectLoadOptimalDefaultsfromthemenu.ExitingtheLenovoBIOSSetupUtilityprogramAfteryo
18IdeaCentreK4SeriesHardwareMaintenanceManual
Chapter6.Symptom-to-FRUIndexTheSymptom-to-FRUindexlistserrorsymptomsandpossiblecauses.Themostlikelycauseislistedrst.AlwaysbeginwithChapter4,“GeneralC
POSTerrorcodesEachtimeyouturnthecomputeron,itperformsaseriesofteststocheckthatthesystemisoperatingcorrectlyandthatcertainoptionsareset.Thisseriesoftes
Chapter7.LocationsThissectionprovidesillustrationstohelplocatethevariousconnectors,controlsandcomponentsofthecomputer.IdentifyinginternalcomponentsThe
IdeaCentreK450Le novo K4501 2 3 47689515161718 1410112122 20 1912132324252627112Vpowerconnector15Frontpanelconnector2Microprocessorandheatsink16FrontU
Chapter8.ReplacinghardwareAttention:Donotremovethecomputercoverorattemptanyrepairbeforereadingthe“Importantsafetyinformation”intheSafetyandWarrantyGui
IdeaCentreK4SeriesHardwareMaintenanceManualMachineTypes:10120/90A0[K450ES];10121/90A1[K450Non-ES]
ReplacingthekeyboardandmouseNote:YourkeyboardwillbeconnectedtoaUSBconnectorateitherfrontorattherearofthecomputer.Toreplacethekeyboard:Step1.Removeanym
Step5.Slidethecomputercoverouttoremoveit.Step6.Toreinstallthecomputercover:a.Lineupthecomputercoverwiththechassisthenslideitback.b.Securethecomputerco
Step2.Removethefrontbezelbyreleasingthethreeplastictabsinsidethechassisandslidingthebezeloutasshown.Step3.Toreattachthebezel,aligntheplastictabsontheb
Step4.Positionthenewmemorymoduleoverthememoryconnector.Makesurethatthenotch1onthememorymodulealignscorrectlywiththeconnectorkey2onthesystemboard.Pusht
Step4.Removetheharddiskdrivefromtheplasticbracketasshown.Step5.Lineupthenewharddiskdrivewiththeplasticbracketandsnapitintoposition.Step6.Slidethenewha
ReplacingagraphicscardNote:Forthisprocedure,ithelpstolaythecomputerat.Toreplaceagraphicscard:Step1.Removethecomputercover.Referto“Removingthecomputer
b.Removethescrewthatsecuresthegraphicscardlatchtothechassis,openit,andremovetheDuo-graphicscardsconnector.1234c.Removethegraphicscardbypullingitstraig
a.Removethescrewthatsecuresthegraphicslatchtothechassisandopenit.123b.Removethegraphicscardbypullingitstraightoutoftheconnector.Step3.Installthenewada
ToreplacetheTV-Tunercard:Step1.Removethecomputercover.Referto“Removingthecomputercover”.Step2.Removethescrewthatsecuresthegraphicscardlatchtothechassi
Step6.Reattachthecomputercover.ReplacingthePowersupplyNote:Forthisprocedure,ithelpstolaythecomputerat.ToreplacethePowersupply:Step1.Removeanymedia(di
FirstEdition(May2013)24th©CopyrightLenovo2013.LIMITEDANDRESTRICTEDRIGHTSNOTICE:IfdataorsoftwarearedeliveredpursuantaGeneralServicesAdministration“GSA”
Step1.Removeanymedia(disks,CDs,DVDs,ormemorycards)fromthedrives,shutdowntheoperatingsystem,andturnoffthecomputerandallattacheddevices.Step2.Unplugallp
Step3.Disconnectallcablesattachedtothecomputer.Thisincludespowercords,input/output(I/O)cables,andanyothercablesthatareconnectedtothecomputer.Referto“L
Step4.Removethecomputercover.Referto“Removingthecomputercover”.Step5.Removethemicroprocessorfan.Referto“Replacingthemicroprocessorfan”.Step6.Removethe
Step8.Holdingthesidesofthemicroprocessorwithyourngers,removetheprotectivecover1thatprotectsthegoldcontactsonthenewmicroprocessor.2Step9.Holdingthesid
ToreplacetheWi-Ficard:Step1.Removeanymedia(disks,CDs,DVDs,ormemorycards)fromthedrives,shutdowntheoperatingsystem,andturnoffthecomputerandallattachedde
Step2.Unplugallpowercordsfromelectricaloutlets.Step3.Disconnectallcablesattachedtothecomputer.Thisincludespowercords,input/output(I/O)cables,andanyoth
40IdeaCentreK4SeriesHardwareMaintenanceManual
Chapter9.GeneralinformationThischapterprovidesgeneralinformationthatappliestoallmachinetypessupportedbythispublication.AdditionalServiceInformationThi
ContentsChapter1.Aboutthismanual...1ImportantSafetyInformation...1Chapter2.Safetyinformation...3Generalsafety...3Electricals
ivIdeaCentreK4SeriesHardwareMaintenanceManual
Chapter1.AboutthismanualThismanualcontainsserviceandreferenceinformationforIdeaCentreK450computerslistedonthecover.Itisintendedonlyfortrainedservicers
2IdeaCentreK4SeriesHardwareMaintenanceManual
Chapter2.SafetyinformationThischaptercontainsthesafetyinformationthatyouneedtobefamiliarwithbeforeservicingacomputer.GeneralsafetyFollowtheserulestoen
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