Lenovo M90 User's Guide Page 49
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- Table of contents
- TROUBLESHOOTING
- BOOKMARKS
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Chapter6.Troubleshootinganddiagnostics
Thischapterdescribessomebasictroubleshootinganddiagnosticprograms.Ifyourcomputerproblem
isnotdescribedhere,seeChapter7“Gettinginformation,help,andservice”onpage45
foradditional
troubleshootingresources.
Basictroubleshooting
Thefollowingtableprovidesinformationtohelpyoutroubleshootyourcomputerproblems.
Note:Ifyoucannotcorrecttheproblem,havethecomputerserviced.Foralistofserviceandsupport
telephonenumbers,refertotheThinkCentreSafetyandWarrantyGuidethatcomeswithyourcomputeror
gototheLenovoSupportWebsiteathttp://www.lenovo.com/support.
SymptomAction
Thecomputerdoesnotstart
whenyoupressthepower
switch.
Verifythat:
•Thepowercordiscorrectlyconnectedtotherearofthecomputerandtoa
workingelectricaloutlet.
•Ifyourcomputerhasasecondarypowerswitchontherearofthecomputer,
makesurethatitisswitchedon.
•Thepowerindicatoronthefrontofthecomputerison.
•Thecomputervoltagematchesthevoltageavailableattheelectricaloutletfor
yourcountryorregion.
Themonitorscreenisblank.
Verifythat:
•Themonitorsignalcableiscorrectlyconnectedtothemonitorandtothe
appropriatemonitorconnectoronthecomputer.
•Themonitorpowercordiscorrectlyconnectedtothemonitorandtoaworking
electricaloutlet.
•Themonitoristurnedonandthebrightnessandcontrastcontrolsareset
correctly.
•Thecomputervoltagematchesthevoltageavailableattheelectricaloutletfor
yourcountryorregion.
•Ifyourcomputerhastwomonitorconnectors,besuretousetheconnector
onthegraphicscard.
Thekeyboarddoesnotwork.
Verifythat:
•Thecomputeristurnedon.
•ThekeyboardissecurelyconnectedtoaUSBconnectoronthecomputer.
•Nokeysarestuck.
Themousedoesnotwork.
Verifythat:
•Thecomputeristurnedon.
•ThemouseissecurelyconnectedtoaUSBconnectoronthecomputer.
•Themouseisclean.Referto“Cleaninganopticalmouse”onpage44
forfurther
information.
©CopyrightLenovo2010
41
- ThinkCentre 1
- UserGuide 1
- Contents 5
- AppendixA.Notices.........49 6
- Index..................51 6
- Importantsafetyinformation 7
- Chapter1.Productoverview 9
- ThinkCentreUserGuide 10
- Specications 11
- Softwareoverview 12
- SoftwareprovidedbyLenovo 12
- Chapter1.Productoverview5 13
- Locations 14
- AdobeReader 14
- Antivirussoftware 14
- .Productoverview7 15
- Locatingcomponents 16
- Locatingpartsonthesystemboard 17
- 10ThinkCentreUserGuide 18
- Installingorreplacinghardware 19
- Installingexternaloptions 19
- Openingthecomputercover 20
- Replacingtheharddiskdrive 22
- 1,pin2,pin3,andpin 23
- Replacingtheopticaldrive 24
- Replacingthebattery 25
- Replacingtheheatsink 26
- Replacingtheinternalspeaker 27
- Replacingtheacpoweradapter 29
- Replacingthekeyboardormouse 33
- Completingthepartsreplacement 33
- Installingsecurityfeatures 34
- Integratedcablelock 34
- Passwordprotection 35
- 28ThinkCentreUserGuide 36
- Chapter3.Recoveryinformation 37
- Usingrecoverymedia 38
- Performingabackupoperation 38
- Performingarecoveryoperation 39
- Creatingandusingarescuemedium 40
- Creatingarescuemedium 40
- Usingarescuemedium 41
- Solvingrecoveryproblems 42
- Viewingandchangingsettings 43
- Usingpasswords 43
- Passwordconsiderations 43
- Power-OnPassword 44
- AdministratorPassword 44
- HardDiskPassword 44
- Enablingordisablingadevice 44
- Selectingastartupdevice 45
- 38ThinkCentreUserGuide 46
- Usingsystemprograms 47
- Basictroubleshooting 49
- Diagnosticprograms 50
- LenovoThinkVantageToolbox 50
- PC-DoctorforRescueandRecovery 51
- PC-DoctorforDOS 51
- Cleaninganopticalmouse 52
- Informationresources 53
- OnlineBooksfolder 53
- LenovoThinkVantageTools 53
- LenovoWelcome 54
- AccessHelp 54
- SafetyandWarranty 54
- Helpandservice 55
- Callingforservice 55
- Usingotherservices 56
- Purchasingadditionalservices 56
- AppendixA.Notices 57
- Televisionoutputnotice 58
- EuropeanconformanceCEmark 58
- Trademarks 58
- 52ThinkCentreUserGuide 60
- 54ThinkCentreUserGuide 62
- *71Y7204* 64
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