•Verifythatalloptionhardwareandcableconnectionsaresecure.
•Iftheoptioncomeswithitsowntestinstructions,usethoseinstructionstotesttheoption.
•IfthefailingoptionisaSCSIoption,verifythat:
–ThecablesforallexternalSCSIoptionsareconnectedcorrectly.
–ThelastoptionineachSCSIchain,ortheendoftheSCSIcable,isterminatedcorrectly.
–AllexternalSCSIoptionsareturnedon.ExternalSCSIoptionsmustbeturnedonbeforethecomputer
isturnedon.Formoreinformation,seeyourSCSIdocumentation.
•Verifythattheoptionandanyrequireddevicedriversareinstalledcorrectly.
Iftheseactionsdonotcorrecttheproblem,runtheLenovoSolutionCenterprogram.Ifyouneedtechnical
assistance,see“LenovoSupportWebsite”onpage34.
Performanceandlockupproblems
Poorperformanceandlockupproblemscanbearesultofanyofthefollowing:
•“Insufficientfreeharddiskdrivespace”onpage50
•“Excessivenumberoffragmentedfiles”onpage51
Makeaselectionfromtheabovelisttofindoutmoreaboutthecorrectiveactionsyoucantake.
Insufficientfreeharddiskdrivespace
Solutions:Freeupharddiskdrivespace.
•CleanoutyourInbox,SentItems,andDeletedItemsfoldersfromyoure-mailapplication.
•CleanupyourCdrive.
1.DependingonyourWindowsversion,dooneofthefollowing:
–ForWindows7:ClicktheStartbuttontoopentheStartmenu,andthenclickComputer.
–ForWindows8:OpenFileExplorer,andthenclickComputer.
–ForWindows8.1:OpenFileExplorer.
–ForWindows10:ClicktheStartbuttontoopentheStartmenu,andthenclickFileExplorer➙
ThisPC.
2.Right-clickyourCdriveandthenclickProperties.
3.Checktheamountoffreespace,andthenclickDiskCleanup.
4.Alistofunnecessaryfilecategoriesisdisplayed.Selecteachfilecategoryyouwanttodelete,
andthenclickOK.
•TurnsomeWindowsfeaturesofforremovesomeunnecessaryprograms.
1.OpenControlPanelbydoingoneofthefollowing:
–ForWindows7:ClicktheStartbuttontoopentheStartmenu,andthenclickControlPanel.
–ForWindows8orWindows8.1:See“AccessingControlPanelontheWindows8orWindows
8.1operatingsystem”onpage38
.
–ForWindows10:Right-clicktheStartbuttontoopentheStartcontextmenu,andthenclick
ControlPanel.
2.ViewControlPanelusingLargeiconsorSmallicons,andthenclickProgramsandFeatures.
3.Dooneofthefollowing:
–ToturnsomeWindowsfeaturesoff,clickTurnWindowsfeaturesonoroff.Followthe
instructionsonthescreen.
50ThinkCentreM73HardwareMaintenanceManual