Lenovo M900Z Hmm User Manual Hardware Maintenance Think Centre All In One (Think Centre) Type 10F4
2016-09-06
User Manual: Lenovo M900Z Hmm Hardware Maintenance Manual - ThinkCentre M900z M900z All-in-One (ThinkCentre) - Type 10F4 ThinkCentre M900z (type 10F4 MultiTouch)
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- About this manual
- Chapter 1. Read this first: Important safety information
- Chapter 2. Product overview
- Chapter 3. Using your computer
- Chapter 4. You and your computer
- Chapter 5. Security
- Locking your computer
- Viewing and changing security settings in the Setup Utility program
- Preventing unauthorized access to your computer
- Using fingerprint authentication
- Using and understanding firewalls
- Protecting data against viruses
- Computrace Agent software embedded in firmware
- Trusted Platform Module (TPM)
- Chapter 6. Advanced configuration
- Using the Setup Utility program
- Starting the Setup Utility program
- Enabling or disabling a device
- Enabling or disabling the Automatic Power On features
- Enabling or disabling ErP LPS compliance mode
- Changing ICE Performance Mode
- Enabling or disabling the ICE Thermal Alert feature
- Enabling or disabling the Configuration Change Detection feature
- Using the cover presence switch
- Using BIOS passwords
- Selecting a startup device
- Exiting the Setup Utility program
- Updating the BIOS
- Using the Setup Utility program
- Chapter 7. Troubleshooting, diagnostics, and recovery
- Chapter 8. Service checkout and symptom-to-FRU index
- Chapter 9. Installing or replacing hardware
- Handling static-sensitive devices
- Installing or replacing hardware
- Installing external options
- Replacing the computer stand
- Removing the back cover
- Replacing the memory module shield
- Replacing a memory module
- Replacing the storage drive
- Replacing the computer cover
- Replacing the system board shield
- Replacing the VESA mount bracket
- Replacing the power supply assembly
- Replacing the internal speakers
- Replacing the thermal sensor
- Replacing the system fan
- Replacing the integrated camera
- Replacing the Wi-Fi antennas
- Replacing the Wi-Fi card
- Replacing the coin-cell battery
- Replacing the card reader
- Replacing the serial connector module
- Replacing the heat sink
- Replacing the system board
- Replacing the microprocessor
- Completing the parts replacement
- Chapter 10. Getting information, help, and service
- Appendix A. Regulatory information
- Appendix B. WEEE and recycling information
- Appendix C. Restriction of Hazardous Substances Directive (RoHS)
- Appendix D. China Energy Label
- Appendix E. ENERGY STAR model information
- Appendix F. Notices
ThinkCentreM900z
HardwareMaintenanceManual
MachineTypes:10F2,10F3,10F4,and10F5
Note:Beforeusingthisinformationandtheproductitsupports,besuretoreadandunderstandtheChapter
1“Readthisfirst:Importantsafetyinformation”onpage1andAppendixF“Notices”onpage135.
SecondEdition(November2015)
©CopyrightLenovo2015.
LIMITEDANDRESTRICTEDRIGHTSNOTICE:IfdataorsoftwareisdeliveredpursuantaGeneralServicesAdministration
“GSA”contract,use,reproduction,ordisclosureissubjecttorestrictionssetforthinContractNo.GS-35F-05925.
Contents
Aboutthismanual............v
Chapter1.Readthisfirst:Important
safetyinformation............1
Powercordsandpoweradapters........1
Generalsafety................1
Electricalsafety...............2
Safetyinspectionguide............4
Handlingelectrostaticdischarge-sensitive
devices..................4
Groundingrequirements............5
Safetynotices(multi-lingualtranslations).....5
Chapter2.Productoverview.....27
Hardwarelocations.............27
Frontview...............27
Rearview...............29
Computercomponents.........31
MajorFRUsandCRUs..........31
Partsonthesystemboard........35
Machinetypeandmodellabel.......36
Features.................36
Specifications...............39
Programs.................39
Accessingaprogramonyourcomputer...39
Installingaprogramthatisreadytobe
installed...............40
AnintroductiontoLenovoprograms....40
Chapter3.Usingyourcomputer...43
Adjustingthecomputerstand.........43
Adjustingthetilt-onlymonitorstand....43
AdjustingtheUltraFlexIIStand......44
Registeringyourcomputer..........46
Settingthecomputervolume.........46
AddinganicontotheWindowsnotificationarea.46
Usingadisc................47
Guidelinesaboutusingtheopticaldrive...47
Handlingandstoringadisc........47
Playingandremovingadisc.......47
Recordingadisc............48
Connectingtoanetwork...........48
ConnectingtoanEthernetLAN......48
ConnectingtoawirelessLAN.......49
ConnectingtoaBluetooth-enableddevice..49
Usingthesingle-touchormulti-touchfeature...49
Chapter4.Youandyourcomputer..51
Arrangingyourworkspace..........51
Glareandlighting............51
Aircirculation.............51
Electricaloutletlocationsandcablelengths.51
Comfort...............51
Accessibilityinformation...........52
Cleaningyourcomputer...........55
Maintenance...............55
Basicmaintenancetips.........55
Goodmaintenancepractices.......56
Keepingyourcomputercurrent......56
Movingyourcomputer...........57
Chapter5.Security..........59
Lockingyourcomputer...........59
AttachingaKensington-stylecablelock...60
Viewingandchangingsecuritysettingsinthe
SetupUtilityprogram............60
Preventingunauthorizedaccesstoyour
computer.................60
Usingfingerprintauthentication........61
Usingandunderstandingfirewalls.......61
Protectingdataagainstviruses........61
ComputraceAgentsoftwareembeddedin
firmware.................62
TrustedPlatformModule(TPM)........62
Chapter6.Advancedconfiguration..63
UsingtheSetupUtilityprogram........63
StartingtheSetupUtilityprogram.....63
Enablingordisablingadevice.......63
EnablingordisablingtheAutomaticPowerOn
features...............63
EnablingordisablingErPLPScompliance
mode................64
ChangingICEPerformanceMode.....64
EnablingordisablingtheICEThermalAlert
feature................65
EnablingordisablingtheConfiguration
ChangeDetectionfeature........65
Usingthecoverpresenceswitch......65
UsingBIOSpasswords.........66
Selectingastartupdevice........67
ExitingtheSetupUtilityprogram......67
UpdatingtheBIOS.............68
©CopyrightLenovo2015i
Chapter7.Troubleshooting,
diagnostics,andrecovery......69
Basicprocedureforresolvingcomputer
problems.................69
Troubleshooting..............69
Startupproblems............69
Audioproblems............70
CDproblems.............71
DVDproblems.............71
Intermittentproblems..........72
Storagedriveproblems.........72
Screenproblems............73
Networkingproblems..........73
Performanceproblems..........75
Serialconnectorcannotbeaccessed....77
USBdeviceproblems..........77
Softwareanddriverproblems.......77
Diagnostics................78
LenovoSolutionCenter.........78
UEFIdiagnosticprogram.........78
Recoveryinformation............79
RecoveryinformationforWindows7....79
RecoveryinformationforWindows10....80
Chapter8.Servicecheckoutand
symptom-to-FRUindex........81
Servicecheckout..............81
Problemdeterminationtips........81
Symptom-to-FRUindex...........82
Harddiskdrivebooterror........82
Powersupplyproblems.........83
Beepsymptoms............83
POSTerrorcodes............83
Miscellaneouserrorconditions......84
Undeterminedproblems.........86
Chapter9.Installingorreplacing
hardware...............87
Handlingstatic-sensitivedevices.......87
Installingorreplacinghardware........87
Installingexternaloptions........87
Replacingthecomputerstand.......88
Removingthebackcover........90
Replacingthememorymoduleshield....91
Replacingamemorymodule.......92
Replacingthestoragedrive........93
Replacingthecomputercover.......95
Replacingthesystemboardshield.....98
ReplacingtheVESAmountbracket.....99
Replacingthepowersupplyassembly...101
Replacingtheinternalspeakers......102
Replacingthethermalsensor.......103
Replacingthesystemfan.........104
Replacingtheintegratedcamera......105
ReplacingtheWi-Fiantennas.......106
ReplacingtheWi-Ficard.........107
Replacingthecoin-cellbattery......108
Replacingthecardreader........110
Replacingtheserialconnectormodule...110
Replacingtheheatsink.........111
Replacingthesystemboard.......112
Replacingthemicroprocessor.......114
Completingthepartsreplacement.....116
Chapter10.Gettinginformation,help,
andservice.............117
Informationresources............117
Accessingtheuserguideinvarious
languages...............117
Windowshelpsystem..........117
Safetyandwarranty...........117
LenovoWebsite............117
LenovoSupportWebsite.........118
Frequentlyaskedquestions........118
Helpandservice..............118
Callingforservice............118
Usingotherservices..........119
Purchasingadditionalservices......119
AppendixA.Regulatory
information.............121
Exportclassificationnotice..........121
Electronicemissionsnotices.........121
FederalCommunicationsCommission
DeclarationofConformity........121
Eurasiancompliancemark..........123
Brazilaudionotice.............123
Mexicowireless-radiocomplianceinformation..123
Taiwanvisionprecautionnotice........123
Additionalregulatoryinformation.......123
AppendixB.WEEEandrecycling
information.............125
ImportantWEEEinformation.........125
RecyclinginformationforJapan........125
RecyclinginformationforBrazil........126
BatteryrecyclinginformationforTaiwan.....126
BatteryrecyclinginformationfortheEuropean
Union..................126
AppendixC.RestrictionofHazardous
SubstancesDirective(RoHS)....129
EuropeanUnionRoHS...........129
iiThinkCentreM900zHardwareMaintenanceManual
ivThinkCentreM900zHardwareMaintenanceManual
Aboutthismanual
ThismanualprovidesserviceandreferenceinformationforLenovo®computerslistedonthefrontcover.
Usethismanualalongwiththeadvanceddiagnosticteststotroubleshootproblems.
Important:ThismanualisintendedonlyfortrainedservicetechnicianswhoarefamiliarwithLenovo
computers.Usethismanualalongwiththeadvanceddiagnosticteststotroubleshootproblemseffectively.
BeforeservicingaLenovocomputer,besuretoreadandunderstandChapter1“Readthisfirst:Important
safetyinformation”onpage1.
©CopyrightLenovo2015v
viThinkCentreM900zHardwareMaintenanceManual
Chapter1.Readthisfirst:Importantsafetyinformation
Thischaptercontainsthesafetyinformationthatyoumustbefamiliarwith.
Powercordsandpoweradapters
Useonlythepowercordsandpoweradapterssuppliedbytheproductmanufacturer.Donotusetheac
powercordforotherdevices.
Thepowercordsshallbesafetyapproved.ForGermany,itshallbeH05VV-F,3G,0.75mm2,orbetter.For
othercountries,thesuitabletypesshallbeusedaccordingly.
Neverwrapapowercordaroundapoweradapterorotherobject.Doingsocanstressthecordinwaysthat
cancausethecordtofray,crack,orcrimp.Thiscanpresentasafetyhazard.
Alwaysroutepowercordssothattheywillnotbewalkedon,trippedover,orpinchedbyobjects.
Protectpowercordandpoweradaptersfromliquids.Forinstance,donotleaveyourpowercordorpower
adapternearsinks,tubs,toilets,oronfloorsthatarecleanedwithliquidcleansers.Liquidscancausea
shortcircuit,particularlyifthepowercordorpoweradapterhasbeenstressedbymisuse.Liquidsalsocan
causegradualcorrosionofpowercordterminalsand/ortheconnectorterminalsonapoweradapter,
whichcaneventuallyresultinoverheating.
Ensurethatallpowercordconnectorsaresecurelyandcompletelypluggedintoreceptacles.
Donotuseanypoweradapterthatshowscorrosionattheacinputpinsorshowssignsofoverheating(such
asdeformedplastic)attheacinputoranywhereonthepoweradapter.
Donotuseanypowercordswheretheelectricalcontactsoneitherendshowsignsofcorrosionor
overheatingorwherethepowercordappearstohavebeendamagedinanyway.
Generalsafety
Followtheserulestoensuregeneralsafety:
•Observegoodhousekeepingintheareaofthemachinesduringandaftermaintenance.
•Whenliftinganyheavyobject:
1.Ensureyoucanstandsafelywithoutslipping.
2.Distributetheweightoftheobjectequallybetweenyourfeet.
3.Useaslowliftingforce.Nevermovesuddenlyortwistwhenyouattempttolift.
4.Liftbystandingorbypushingupwithyourlegmuscles;thisactionremovesthestrainfromthe
musclesinyourback.
Attention:
Donotattempttoliftanyobjectsthatweighmorethan16kg(35lb)orobjectsthatyouthinkare
tooheavyforyou.
•Donotperformanyactionthatcauseshazardstothecustomer,orthatmakestheequipmentunsafe.
•Beforeyoustartthemachine,ensurethatotherservicerepresentativesandthecustomer'spersonnelare
notinahazardousposition.
©CopyrightLenovo20151
•Placeremovedcoversandotherpartsinasafeplace,awayfromallpersonnel,whileyouareservicing
themachine.
•Keepyourtoolcaseawayfromwalkareassothatotherpeoplewillnottripoverit.
•Donotwearlooseclothingthatcanbetrappedinthemovingpartsofamachine.Ensurethatyoursleeves
arefastenedorrolledupaboveyourelbows.Ifyourhairislong,fastenit.
•Inserttheendsofyournecktieorscarfinsideclothingorfastenitwithanonconductiveclip,approximately
8centimeters(3inches)fromtheend.
•Donotwearjewelry,chains,metal-frameeyeglasses,ormetalfastenersforyourclothing.
Remember:Metalobjectsaregoodelectricalconductors.
•Wearsafetyglasseswhenyouare:hammering,drilling,soldering,cuttingwire,attachingsprings,using
solvents,orworkinginanyotherconditionsthatmightbehazardoustoyoureyes.
•Afterservice,reinstallallsafetyshields,guards,labels,andgroundwires.Replaceanysafetydevice
thatiswornordefective.
•Reinstallallcoverscorrectlybeforereturningthemachinetothecustomer.
CAUTION:
Hazardousmovingparts.Keepfingersandotherbodypartsaway.
CAUTION:
Beforeyouopenthecomputercover,turnoffthecomputerandwaitseveralminutesuntilthe
computeriscool.
Electricalsafety
CAUTION:
Electricalcurrentfrompower,telephone,andcommunicationcablescanbehazardous.Toavoid
personalinjuryorequipmentdamage,disconnecttheattachedpowercords,telecommunication
systems,networks,andmodemsbeforeyouopenthecomputercovers,unlessinstructedotherwise
intheinstallationandconfigurationprocedures.
Observethefollowingruleswhenworkingonelectricalequipment.
Important:Useonlyapprovedtoolsandtestequipment.Somehandtoolshavehandlescoveredwithasoft
materialthatdoesnotinsulateyouwhenworkingwithliveelectricalcurrents.Manycustomershave,near
theirequipment,rubberfloormatsthatcontainsmallconductivefiberstodecreaseelectrostaticdischarges.
Donotusethistypeofmattoprotectyourselffromelectricalshock.
2ThinkCentreM900zHardwareMaintenanceManual
•Findtheroomemergencypower-off(EPO)switch,disconnectingswitch,orelectricaloutlet.Ifanelectrical
accidentoccurs,youcanthenoperatetheswitchorunplugthepowercordquickly.
•Donotworkaloneunderhazardousconditionsornearequipmentthathashazardousvoltages.
•Disconnectallpowerbefore:
–Performingamechanicalinspection
–Workingnearpowersupplies
–RemovingorinstallingFieldReplaceableUnits(FRUs)
•Beforeyoustarttoworkonthemachine,unplugthepowercord.Ifyoucannotunplugit,poweroffthe
wallboxthatsuppliespowertothemachineandlockthewallboxintheoffposition.
•Ifyouneedtoworkonamachinethathasexposedelectricalcircuits,observethefollowingprecautions:
–Ensurethatanotherperson,familiarwiththepower-offcontrols,isnearyou.
Remember:Anotherpersonmustbetheretoswitchoffthepower,ifnecessary.
–Useonlyonehandwhenworkingwithpowered-onelectricalequipment;keeptheotherhandinyour
pocketorbehindyourback.
Remember:Theremustbeacompletecircuittocauseelectricalshock.Byobservingtheaboverule,
youmaypreventacurrentfrompassingthroughyourbody.
–Whenusingatester,setthecontrolscorrectlyandusetheapprovedprobeleadsandaccessoriesfor
thattester.
–Standonsuitablerubbermats(obtainedlocally,ifnecessary)toinsulateyoufromgroundssuchas
metalfloorstripsandmachineframes.
Observethespecialsafetyprecautionswhenyouworkwithveryhighvoltages;theseinstructionsarein
thesafetysectionsofmaintenanceinformation.Useextremecarewhenmeasuringhighvoltages.
•Regularlyinspectandmaintainyourelectricalhandtoolsforsafeoperationalcondition.
•Donotusewornorbrokentoolsandtesters.
•Neverassumethatpowerhasbeendisconnectedfromacircuit.First,checkthatithasbeenpowered-off.
•Alwayslookcarefullyforpossiblehazardsinyourworkarea.Examplesofthesehazardsaremoistfloors,
nongroundedpowerextensioncables,powersurges,andmissingsafetygrounds.
•Donottouchliveelectricalcircuitswiththereflectivesurfaceofaplasticdentalmirror.Thesurfaceis
conductive;suchtouchingcancausepersonalinjuryandmachinedamage.
•Donotservicethefollowingpartswiththepoweronwhentheyareremovedfromtheirnormaloperating
placesinamachine:
–Powersupplyunits
–Pumps
–Blowersandfans
–Motorgenerators
andsimilarunits.(Thispracticeensurescorrectgroundingoftheunits.)
•Ifanelectricalaccidentoccurs:
–Usecaution;donotbecomeavictimyourself.
–Switchoffpower.
–Sendanotherpersontogetmedicalaid.
Chapter1.Readthisfirst:Importantsafetyinformation3
Safetyinspectionguide
Theintentofthisinspectionguideistoassistyouinidentifyingpotentiallyunsafeconditionsonthese
products.Eachmachine,asitwasdesignedandbuilt,hadrequiredsafetyitemsinstalledtoprotectusers
andservicepersonnelfrominjury.Thisguideaddressesonlythoseitems.However,goodjudgmentshould
beusedtoidentifypotentialsafetyhazardsduetoattachmentoffeaturesoroptionsnotcoveredbythis
inspectionguide.
Ifanyunsafeconditionsarepresent,youmustdeterminehowserioustheapparenthazardcouldbeand
whetheryoucancontinuewithoutfirstcorrectingtheproblem.
Considertheseconditionsandthesafetyhazardstheypresent:
•Electricalhazards,especiallyprimarypower(primaryvoltageontheframecancauseseriousorfatal
electricalshock).
•Explosivehazards,suchasadamagedCRTfaceorbulgingcapacitor
•Mechanicalhazards,suchaslooseormissinghardware
Theguideconsistsofaseriesofstepspresentedinachecklist.Beginthecheckswiththepoweroff,and
thepowercorddisconnected.
Checklist:
1.Checkexteriorcoversfordamage(loose,broken,orsharpedges).
2.Power-offthecomputer.Disconnectthepowercord.
3.Checkthepowercordfor:
a.Athird-wiregroundconnectoringoodcondition.Useametertomeasurethird-wireground
continuityfor0.1ohmorlessbetweentheexternalgroundpinandframeground.
b.Thepowercordshouldbetheappropriatetypeasspecifiedinthepartslistings.
c.Insulationmustnotbefrayedorworn.
4.Removethecover.
5.Checkforanyobviousalterations.Usegoodjudgmentastothesafetyofanyalterations.
6.Checkinsidetheunitforanyobviousunsafeconditions,suchasmetalfilings,contamination,wateror
otherliquids,orsignsoffireorsmokedamage.
7.Checkforworn,frayed,orpinchedcables.
8.Checkthatthepower-supplycoverfasteners(screwsorrivets)havenotbeenremovedortamperedwith.
Handlingelectrostaticdischarge-sensitivedevices
Anycomputerpartcontainingtransistorsorintegratedcircuits(ICs)shouldbeconsideredsensitiveto
electrostaticdischarge(ESD).ESDdamagecanoccurwhenthereisadifferenceinchargebetweenobjects.
ToprotectagainstESDdamage,equalizethechargebetweenobjects.Then,themachine,thepart,the
workmat,andthepersonhandlingthepartareallatthesamecharge.
Notes:
1.Useproduct-specificESDprocedureswhentheyexceedtherequirementsnotedhere.
2.MakesurethattheESDprotectivedevicesyouusehavebeencertified(ISO9000)asfullyeffective.
WhenhandlingESD-sensitiveparts:
•Keepthepartsinprotectivepackagesuntiltheyareinsertedintotheproduct.
•Avoidcontactwithotherpeoplewhilehandlingthepart.
4ThinkCentreM900zHardwareMaintenanceManual
•Wearagroundedwriststrapagainstyourskintoeliminatestaticonyourbody.
•Preventthepartfromtouchingyourclothing.Mostclothingisinsulativeandretainsachargeeven
whenyouarewearingawriststrap.
•Usetheblacksideofagroundedworkmattoprovideastatic-freeworksurface.Thematisespecially
usefulwhenhandlingESD-sensitivedevices.
•Selectagroundingsystem,suchasthoselistedbelow,toprovideprotectionthatmeetsthespecific
servicerequirement.
Note:TheuseofagroundingsystemisdesirablebutnotrequiredtoprotectagainstESDdamage.
–AttachtheESDgroundcliptoanyframeground,groundbraid,orgreen-wireground.
–UseanESDcommongroundorreferencepointwhenworkingonadouble-insulatedor
battery-operatedsystem.Youcanusecoaxorconnector-outsideshellsonthesesystems.
–Usetheroundground-prongoftheacplugonac-operatedcomputers.
Groundingrequirements
Electricalgroundingofthecomputerisrequiredforoperatorsafetyandcorrectsystemfunction.Proper
groundingoftheelectricaloutletcanbeverifiedbyacertifiedelectrician.
Safetynotices(multi-lingualtranslations)
Thecautionanddangersafetynoticesinthissectionareprovidedinthefollowinglanguages:
•English
•Arabic
•Brazilian/Portuguese
•Chinese(simplified)
•Chinese(traditional)
•French
•German
•Hebrew
•Italian
•Korean
•Spanish
DANGER
Electricalcurrentfrompower,telephoneandcommunicationcablesishazardous.
Toavoidashockhazard:
•Donotconnectordisconnectanycablesorperforminstallation,maintenance,orreconfiguration
ofthisproductduringanelectricalstorm.
•Connectallpowercordstoaproperlywiredandgroundedelectricaloutlet.
Chapter1.Readthisfirst:Importantsafetyinformation5
•Connecttoproperlywiredoutletsanyequipmentthatwillbeattachedtothisproduct.
•Whenpossible,useonehandonlytoconnectordisconnectsignalcables.
•Neverturnonanyequipmentwhenthereisevidenceoffire,water,orstructuraldamage.
•Disconnecttheattachedpowercords,telecommunicationssystems,networks,andmodems
beforeyouopenthedevicecovers,unlessinstructedotherwiseintheinstallationandconfiguration
procedures.
•Connectanddisconnectcablesasdescribedinthefollowingtableswheninstalling,moving,or
openingcoversonthisproductorattacheddevices.
ToConnectToDisconnect
1.TurneverythingOFF.
2.First,attachallcablestodevices.
3.Attachsignalcablestoconnectors.
4.Attachpowercordstooutlet.
5.TurndeviceON.
1.TurneverythingOFF.
2.First,removepowercordsfromoutlet.
3.Removesignalcablesfromconnectors.
4.Removeallcablesfromdevices.
CAUTION:
Whenreplacingthelithiumbattery,useonlyPartNumber45C1566oranequivalenttypebattery
recommendedbythemanufacturer.Ifyoursystemhasamodulecontainingalithiumbattery,replace
itonlywiththesamemoduletypemadebythesamemanufacturer.Thebatterycontainslithiumand
canexplodeifnotproperlyused,handled,ordisposedof.Donot:
•Throworimmerseintowater
•Heattomorethan100°C(212°F)
•Repairordisassemble
Disposeofthebatteryasrequiredbylocalordinancesorregulations.
CAUTION:
Whenlaserproducts(suchasCD-ROMs,DVD-ROMdrives,fiberopticdevices,ortransmitters)are
installed,notethefollowing:
•Donotremovethecovers.Removingthecoversofthelaserproductcouldresultinexposureto
hazardouslaserradiation.Therearenoserviceablepartsinsidethedevice.
•Useofcontrolsoradjustmentsorperformanceofproceduresotherthanthosespecifiedherein
mightresultinhazardousradiationexposure.
DANGER
SomelaserproductscontainanembeddedClass3AorClass3Blaserdiode.Notethefollowing:
Laserradiationwhenopen.Donotstareintothebeam,donotviewdirectlywithoptical
instruments,andavoiddirectexposuretothebeam.
6ThinkCentreM900zHardwareMaintenanceManual
≥18kg(37lb)≥32kg(70.5lb)≥55kg(121.2lb)
CAUTION:
Usesafepracticeswhenlifting.
CAUTION:
Thepowercontrolbuttononthedeviceandthepowerswitchonthepowersupplydonotturnoff
theelectricalcurrentsuppliedtothedevice.Thedevicealsomighthavemorethanonepower
cord.Toremoveallelectricalcurrentfromthedevice,ensurethatallpowercordsaredisconnected
fromthepowersource.
1
2
Chapter1.Readthisfirst:Importantsafetyinformation7
8ThinkCentreM900zHardwareMaintenanceManual
Paraevitarriscodechoqueelétrico:
•Nãoconectenemdesconectenenhumcaboouexecuteinstalação,manutençãooureconfiguração
desteprodutoduranteumatempestadecomraios.
•Conectetodososcabosdealimentaçãoatomadaselétricascorretamenteinstaladaseaterradas.
•Todoequipamentoqueforconectadoaesteprodutodeveserconectadoatomadascorretamente
instaladas.
•Quandopossível,utilizeapenasumadasmãosparaconectaroudesconectarcabosdesinal.
•Nuncaliguenenhumequipamentoquandohouverevidênciadefogo,águaoudanosestruturais.
•Antesdeabrirtampasdedispositivos,desconectecabosdealimentação,sistemasdetelecomunicação,
redesemodemsconectados,amenosqueespecificadodemaneiradiferentenosprocedimentosde
instalaçãoeconfiguração.
•Conecteedesconecteoscabosconformedescritonatabelaapresentadaaseguiraoinstalar,moverou
abrirtampasdesteprodutooudedispositivosconectados.
ParaConectar:ParaDesconectar:
1.DESLIGUETudo.
2.Primeiramente,conectetodososcabosaos
dispositivos.
3.Conecteoscabosdesinalaosconectores.
4.Conecteoscabosdealimentaçãoàstomadas.
5.LIGUEosdispositivos.
1.DESLIGUETudo.
2.Primeiramente,removaoscabosdealimentaçãodas
tomadas.
3.Removaoscabosdesinaldosconectores.
4.Removatodososcabosdosdispositivos.
CUIDADO:
Aosubstituirabateriadelítio,utilizeapenasumabateriacomNúmerodePeça45C1566ouumtipo
debateriaequivalenterecomendadopeloSeoseusistemapossuiummódulocomumabateriade
lítio,substitua-oapenasporummódulodomesmotipoedomesmofabricante.Abateriacontémlítio
epodeexplodirsenãoforutilizada,manuseadaoudescartadademaneiracorreta.
Não:
•Jogueoucoloquenaágua
•Aqueçaamaisde100°C(212°F)
•Consertenemdesmonte
Descarteabateriaconformerequeridopelasleisouregulamentoslocais.
PRECAUCIÓN:
Quandoprodutosalaser(comounidadesdeCD-ROMs,unidadesdeDVD-ROM,dispositivosdefibraótica
outransmissores)estivereminstalados,observeoseguinte:
•Nãoremovaastampas.Aremoçãodastampasdeumprodutoalaserpoderesultaremexposição
prejudicialàradiaçãodelaser.Nãoexistempeçasquepodemserconsertadasnointeriordodispositivo.
10ThinkCentreM900zHardwareMaintenanceManual
•Autilizaçãodecontrolesouajustesouaexecuçãodeprocedimentosdiferentesdosespecificadosaqui
poderesultaremexposiçãoprejudicialàradiação.
PERIGO
AlgunsprodutosalasercontêmdiododelaserintegradodaClasse3AoudaClasse3B.Observeoseguinte:
Radiaçãoalaserquandoaberto.Nãoolhediretamenteparaofeixeaolhonuoucominstrumentosópticose
eviteexposiçãodiretaaofeixe.
≥18kg(37lb)≥32kg(70.5lb)≥55kg(121.2lb)
CUIDADO:
Utilizeprocedimentosdesegurançaparalevantarequipamentos.
CUIDADO:
Obotãodecontroledealimentaçãododispositivoeobotãoparaligar/desligardafontedealimentação
nãodesligamacorrenteelétricafornecidaaodispositivo.Odispositivotambémpodetermaisdeumcabo
dealimentação.Pararemovertodaacorrenteelétricadodispositivo,assegurequetodososcabosde
alimentaçãoestejamdesconectadosdafontedealimentação.
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Chapter1.Readthisfirst:Importantsafetyinformation11
12ThinkCentreM900zHardwareMaintenanceManual
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14ThinkCentreM900zHardwareMaintenanceManual
DANGER
Lecourantélectriqueprovenantdel'alimentation,dutéléphoneetdescâblesdetransmissionpeutprésenter
undanger.
Pourévitertoutrisquedechocélectrique:
•Nemanipulezaucuncâbleetn'effectuezaucuneopérationd'installation,d'entretienoudereconfiguration
deceproduitaucoursd'unorage.
•Brancheztouslescordonsd'alimentationsurunsocledeprisedecourantcorrectementcâbléetmisàla
terre.
•Branchezsurdessoclesdeprisedecourantcorrectementcâbléstoutéquipementconnectéàceproduit.
•Lorsquecelaestpossible,n'utilisezqu'uneseulemainpourconnecteroudéconnecterlescâbles
d'interface.
•Nemettezjamaisunéquipementsoustensionencasd'incendieoud'inondation,ouenprésencede
dommagesmatériels.
•Avantderetirerlescartersdel'unité,mettezcelle-cihorstensionetdéconnectezsescordons
d'alimentation,ainsiquelescâblesquilarelientauxréseaux,auxsystèmesdetélécommunicationetaux
modems(saufinstructioncontrairementionnéedanslesprocéduresd'installationetdeconfiguration).
•Lorsquevousinstallez,quevousdéplacez,ouquevousmanipulezleprésentproduitoudespériphériques
quiluisontraccordés,reportez-vousauxinstructionsci-dessouspourconnecteretdéconnecterles
différentscordons.
ConnexionDéconnexion
1.MettezlesunitésHORSTENSION.
2.Commencezparbranchertouslescordonssurles
unités.
3.Branchezlescâblesd'interfacesurdesconnecteurs.
4.Branchezlescordonsd'alimentationsurdesprises.
5.MettezlesunitésSOUSTENSION.
1.MettezlesunitésHORSTENSION.
2.Débranchezlescordonsd'alimentationdesprises.
3.Débranchezlescâblesd'interfacedesconnecteurs.
4.Débrancheztouslescâblesdesunités.
ATTENTION:
Remplacerlapileaulithiumusagéeparunepilederéférenceidentiqueexclusivement,(référence
45C1566),ousuivrelesinstructionsdufabricantquiendéfinitleséquivalences.Sivotresystèmeest
dotéd'unmodulecontenantunepileaulithium,vousdevezleremplaceruniquementparunmodule
identique,produitparlemêmefabricant.Lapilecontientdulithiumetpeutexploserencasde
mauvaiseutilisation,demauvaisemanipulationoudemiseaurebutinappropriée.
Nepas:
•lajeteràl'eau,
•l'exposeràdestempératuressupérieuresà100°C,
•chercheràlaréparerouàladémonter.
Nepasmettrelapileàlapoubelle.Pourlamiseaurebut,sereporteràlaréglementationenvigueur.
Chapter1.Readthisfirst:Importantsafetyinformation15
ATTENTION:
Sidesproduitsàlaser(telsquedesunitésdeCD-ROM,deDVD-ROM,desunitésàfibresoptiques,ou
desémetteurs)sontinstallés,prenezconnaissancedesinformationssuivantes:
•Neretirezpaslecarter.Enouvrantl'unitédeCD-ROMoudeDVD-ROM,vousvousexposezau
rayonnementdangereuxdulaser.Aucunepiècedel'unitén'estréparable.
•Pourévitertoutrisqued'expositionaurayonlaser,respectezlesconsignesderéglageet
d'utilisationdescommandes,ainsiquelesprocéduresdécritesdansleprésentmanuel.
DANGER
Certainsproduitsàlasercontiennentunediodeàlaserintégréedeclasse3Aou3B.Prenez
connaissancedesinformationssuivantes:
Rayonnementlaserlorsquelecarterestouvert.Eviteztouteexpositiondirecteaurayonlaser.Evitez
deregarderfixementlefaisceauoudel'observeràl'aided'instrumentsoptiques.
≥18kg(37lb)≥32kg(70.5lb)≥55kg(121.2lb)
ATTENTION:
Soulevezlamachineavecprécaution.
ATTENTION:
L'interrupteurdecontrôled'alimentationdel'unitéetl'interrupteurdublocd'alimentationnecoupent
paslecourantélectriquealimentantl'unité.Enoutre,lesystèmepeutêtreéquipédeplusieurs
cordonsd'alimentation.Pourmettrel'unitéhorstension,vousdevezdéconnectertouslescordons
delasourced'alimentation.
16ThinkCentreM900zHardwareMaintenanceManual
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VORSICHT
AnNetz-,Telefon-undDatenleitungenkönnengefährlicheSpannungenanliegen.
AusSicherheitsgründen:
•BeiGewitterandiesemGerätkeineKabelanschließenoderlösen.FernerkeineInstallations-,
Wartungs-oderRekonfigurationsarbeitendurchführen.
•GerätnuraneineSchutzkontaktsteckdosemitordnungsgemäßgeerdetemSchutzkontakt
anschließen.
•AlleangeschlossenenGeräteebenfallsanSchutzkontaktsteckdosenmitordnungsgemäß
geerdetemSchutzkontaktanschließen.
•DieSignalkabelnachMöglichkeiteinhändiganschließenoderlösen,umeinenStromschlagdurch
BerührenvonOberflächenmitunterschiedlichemelektrischemPotenzialzuvermeiden.
•Geräteniemalseinschalten,wennHinweiseaufFeuer,WasseroderGebäudeschädenvorliegen.
•DieVerbindungzudenangeschlossenenNetzkabeln,Telekommunikationssystemen,Netzwerken
undModemsistvordemÖffnendesGehäuseszuunterbrechen,sofernindenInstallations-und
KonfigurationsprozedurenkeineanderslautendenAnweisungenenthaltensind.
•ZumInstallieren,TransportierenundÖffnenderAbdeckungendesComputersoderder
angeschlossenenEinheitendieKabelgemäßderfolgendenTabelleanschließenundabziehen.
ZumAnschließenderKabelgehenSiewiefolgtvorZumAbziehenderKabelgehenSiewiefolgtvor
1.SchaltenSiealleEinheitenAUS.
2.SchließenSieerstalleKabelandieEinheitenan.
3.SchließenSiedieSignalkabelandieBuchsenan.
4.SchließenSiedieNetzkabelandieSteckdosean.
5.SchaltenSiedieEinheitEIN.
1.SchaltenSiealleEinheitenAUS.
2.ZiehenSiezuerstalleNetzkabelausden
Netzsteckdosen.
3.ZiehenSiedieSignalkabelausdenBuchsen.
4.ZiehenSiealleKabelvondenEinheitenab.
CAUTION:
EineverbrauchteLithiumbatterienurdurcheineBatteriemitderTeilenummer45C1566odereine
gleichwertige,vomHerstellerempfohleneBatterieersetzen.EnthältdasSystemeinModulmiteiner
Lithiumbatterie,diesesnurdurcheinModuldesselbenTypsundvondemselbenHerstellerersetzen.
DieBatterieenthältLithiumundkannbeiunsachgemäßerVerwendung,HandhabungoderEntsorgung
explodieren.
DieBatterienicht:
•mitWasserinBerührungbringen.
Chapter1.Readthisfirst:Importantsafetyinformation17
•über100Cerhitzen.
•reparierenoderzerlegen.
DieörtlichenBestimmungenfürdieEntsorgungvonSondermüllbeachten.
ACHTUNG:
BeiderInstallationvonLasergeräten(wieCD-ROM-Laufwerken,DVD-aufwerken,Einheitenmit
LichtwellenleitertechnikoderSendern)Folgendesbeachten:
•DieAbdeckungennichtentfernen.DurchEntfernenderAbdeckungendesLasergerätskönnen
gefährlicheLaserstrahlungenfreigesetztwerden.DasGerätenthältkeinezuwartendenTeile.
•WerdenSteuerelemente,EinstellungenoderDurchführungenvonProzedurenandersalshier
angegebenverwendet,kanngefährlicheLaserstrahlungauftreten.
VORSICHT
EinigeLasergeräteenthalteneineLaserdiodederKlasse3Aoder3B.BeachtenSieFolgendes:
LaserstrahlungbeigeöffneterVerkleidung.NichtindenStrahlblicken.KeineLupenoderSpiegel
verwenden.Strahlungsbereichmeiden.
≥18kg≥32kg≥55kg
ACHTUNG:
ArbeitsschutzrichtlinienbeimAnhebenderMaschinebeachten.
ACHTUNG:
MitdemNetzschalteranderEinheitundamNetzteilwirddieStromversorgungfürdieEinheit
nichtunterbrochen.DieEinheitkannauchmitmehrerenNetzkabelnausgestattetsein.Umdie
StromversorgungfürdieEinheitvollständigzuunterbrechen,müssenallezumGerätführenden
NetzkabelvomNetzgetrenntwerden.
18ThinkCentreM900zHardwareMaintenanceManual
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20ThinkCentreM900zHardwareMaintenanceManual
PERICOLO
Lacorrenteelettricaprovenientedaicavidialimentazione,deltelefonoedicomunicazionepuòessere
pericolosa.
Perevitareilrischiodiscosseelettriche:
•Noncollegareoscollegarequalsiasicavooppureeffettuarel'installazione,lamanutenzioneola
riconfigurazionedelprodottoduranteuntemporale.
•Collegaretuttiifilielettriciaunapresadialimentazionecorrettamentecablataedotatadimessaa
terra.
•Collegareallepreseelettricheappropriatetutteleapparecchiaturecheverrannoutilizzateper
questoprodotto.
•Sepossibile,utilizzaresolounamanopercollegareoscollegareicavidisegnale.
•Nonaccendereassolutamenteapparecchiatureinpresenzadiincendi,perdited'acquaodanno
strutturale.
•Scollegareicavidialimentazione,isistemiditelecomunicazione,leretieilmodemprimadi
aprireicoperchideldispositivo,salvoistruzionicontrarierelativealleprocedurediinstallazionee
configurazione.
•Collegareescollegareicavicomedescrittonellaseguentetabellaquandovengonoeffettuate
operazionidiinstallazione,spostamentooaperturadeicoperchidiquestoprodottoodelleunità
collegate.
PercollegarsiPerscollegarsi
1.SPEGNEREleapparecchiature.
2.Innanzitutto,collegaretuttiicavialleunità.
3.Collegareicavidisegnaleaiconnettori.
4.Collegareicavidialimentazioneallapresa.
5.Accenderel'unità.
1.SPEGNEREleapparecchiature.
2.Innanzitutto,rimuovereicavidialimentazionedalla
presa.
3.Rimuovereicavidisegnaledaiconnettori.
4.Rimuoveretuttiicavidalleunità.
ATTENZIONE:
Quandosisostituiscelabatteriaallitio,utilizzaresoloilNumeroparte45C1566ountipodibatteria
equivalenteconsigliatodalproduttore.Sesulsistemaèpresenteunmodulochecontieneunabatteria
allitio,sostituirlosoloconuntipodimodulodellostessotipodellastessacasadiproduzione.La
batteriacontienelitioepuòesplodereseusata,maneggiataosmaltitainmodononcorretto.
Non:
•Gettareoimmergerelabatterianell'acqua
•Riscaldarlaadunatemperaturasuperioreai100gradiC(212gradiF)
•Smontarla,ricaricarlaotentarediripararla
Lebatterieusatevannosmaltiteinaccordoallanormativainvigore(DPR915/82esuccessive
disposizioniedisposizionilocali).
Chapter1.Readthisfirst:Importantsafetyinformation21
ATTENZIONE:
Quandovengonoinstallatiprodottilaser(qualiCD-ROM,unitàDVD-ROM,unitàafibreotticheo
trasmittenti),tenerpresentequantosegue:
•Nonrimuovereglisportelli.L'aperturadiun'unitàlaserpuòdeterminarel'esposizionearadiazioni
laserpericolose.All'internodell'unitànonvisonopartisucuieffettuarel'assistenzatecnica.
•L'utilizzodicontrolli,regolazioniol'esecuzionediprocedurenondescrittinelpresentemanuale
possonoprovocarel'esposizionearadiazionipericolose.
PERICOLO
AlcuneunitàlasercontengonoundiodolaserdiClasse3AoClasse3B.Tenerpresentequantosegue:
Aprendol'unitàvengonoemesseradiazionilaser.Nonfissareilfascio,nonguardarlodirettamente
construmentiotticiedevitarel'esposizionealfascio.
≥18kg≥32kg≥55kg
ATTENZIONE:
Prestareattenzionenelsollevarel'apparecchiatura.
ATTENZIONE:
Ilpulsantedicontrollodell'alimentazionepresentesull'unitàel'interruttoredell'alimentatorenon
disattivanol'alimentazionecorrentefornitaall'unità.E'possibilechel'unitàdispongadipiùcavidi
alimentazione.Perdisattivarel'alimentazionedall'unità,accertarsichetuttiicavidialimentazione
sianoscollegatidallafontedialimentazione.
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22ThinkCentreM900zHardwareMaintenanceManual
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PELIGRO
Lacorrienteeléctricaprocedentedecablesdealimentación,teléfonosycablesdecomunicaciónpuede
serpeligrosa.
Paraevitarelriesgodedescargaeléctrica:
•Noconectenidesconecteloscablesnirealiceningunatareadeinstalación,mantenimientoo
reconfiguracióndeesteproductoduranteunatormentaeléctrica.
•Conectetodosloscablesdealimentaciónatomasdecorrientedebidamentecableadasy
conectadasatierra.
•Cualquierequipoqueseconecteaesteproductotambiéndebeconectarseatomasdecorriente
debidamentecableadas.
•Siemprequeseaposible,utiliceunasolamanoparaconectarodesconectarloscablesdeseñal.
24ThinkCentreM900zHardwareMaintenanceManual
•Noenciendanuncaunequipocuandohayseñalesdefuego,aguaodañosestructurales.
•Desconecteloscablesdealimentación,lossistemasdetelecomunicaciones,lasredesylos
módemsconectadosantesdeabrirlascubiertasdelosdispositivos,amenosqueseindiquelo
contrarioenlosprocedimientosdeinstalaciónyconfiguración.
•Conecteydesconecteloscables,comosedescribeenlatablasiguiente,cuandoinstale,muevao
abralascubiertasdeesteproductoodelosdispositivosconectados.
ParaconectarParadesconectar
1.APÁGUELOtodo.
2.Enprimerlugar,conectetodosloscablesalos
dispositivos.
3.Conecteloscablesdeseñalalosconectores.
4.Enchufeloscablesdealimentaciónalastomasde
corriente.
5.Enciendaeldispositivo.
1.APÁGUELOtodo.
2.Enprimerlugar,desenchufeloscablesdealimentación
delastomasdecorriente.
3.Desconecteloscablesdeseñaldelosconectores.
4.Desconectetodosloscablesdelosdispositivos.
PRECAUCIÓN:
Cuandosustituyaunabateríadelitio,utilicesolamenteunabateríanúmerodepieza45C1566uotra
detipoequivalenterecomendadaporelfabricante.Sisusistemadisponedeunmóduloquecontiene
unabateríadelitio,reemplácelosóloconelmismotipodemódulo,delmismofabricante.Labatería
contienelitioypuedeexplotarsinoseutiliza,manipulaodesechacorrectamente.
Nodebe:
•Arrojarlaalaguaosumergirlaenella
•Exponerlaatemperaturassuperioresa100°C(212°F)
•Repararlaodesmontarla
Deshágasedelabateríasegúnespecifiquenlasleyesonormaslocales.
PRECAUCIÓN:
Cuandohayaproductosláser(comounidadesdeCD-ROM,unidadesdeDVD,dispositivosdefibra
ópticaotransmisores)instalados,tengaencuentalosiguiente:
•Noquitelascubiertas.Siquitalascubiertasdelproductoláser,podríaquedarexpuestoaradiación
láserpeligrosa.Dentrodeldispositivonoexisteningunapiezaquerequieraserviciotécnico.
•Siusacontrolesoajustesorealizaprocedimientosquenoseanlosespecificadosaquí,podría
exponersearadiacionespeligrosas.
PELIGRO
Chapter1.Readthisfirst:Importantsafetyinformation25
Algunosproductoslásertienenincorporadoundiodoláserdeclase3Aoclase3B.Tengaencuentalo
siguiente:
Cuandoseabre,quedaexpuestoaradiaciónláser.Nomiredirectamentealrayoláser,nisiquieracon
instrumentosópticos,yeviteexponersedirectamentealrayoláser.
≥18kg≥32kg≥55kg
PRECAUCIÓN:
Adopteprocedimientossegurosallevantarelequipo.
PRECAUCIÓN:
Elbotóndecontroldealimentacióndeldispositivoyelinterruptordealimentacióndelafuentede
alimentaciónnodesconectanlacorrienteeléctricasuministradaaldispositivo.Además,eldispositivo
podríatenermásdeuncabledealimentación.Parasuprimirtodalacorrienteeléctricadeldispositivo,
asegúresedequetodosloscablesdealimentaciónesténdesconectadosdelatomadecorriente.
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26ThinkCentreM900zHardwareMaintenanceManual
Chapter2.Productoverview
Thischapterprovidesinformationaboutthefollowingtopics:
•“Hardwarelocations”onpage27
•“Features”onpage36
•“Specifications”onpage39
•“Programs”onpage39
Hardwarelocations
Thissectionprovidesinformationaboutthelocationsofyourcomputerhardware.
Note:Thecomputerhardwaremightlookslightlydifferentfromtheillustrations.
Frontview
Figure1.Frontview
1Integratedmicrophones(2)(somemodels)2Integratedcameraactivityindicator(somemodels)
3Integratedcamera(somemodels)4Opticaldriveeject/closebutton(somemodels)
5Monitor/computermodeswitch6Brightness-upcontrol(computermode)
7Brightness-downcontrol(computermode)8Microphonemute/unmutecontrol(computermode)
9Powerbutton10Microphonemute/unmuteindicator
©CopyrightLenovo201527
11Powerindicator12Storagedriveactivityindicator
13Internalspeakers(2)
•Brightness-downcontrol
Usedtoreducethescreenbrightness.
•Brightness-upcontrol
Usedtoenhancethescreenbrightness.
•Integratedcamera
Usedtotakepicturesorholdavideoconference.
•Integratedcameraactivityindicator
Whentheintegratedcameraactivityindicatorison,thecameraisinuse.
•Integratedmicrophone
Usedtorecordsoundsorusespeech-recognitionsoftwarewithoutusingamicrophone.
•Internalspeaker
Usedtolistentothesoundsfromyourcomputerwithoutusingaheadsetorheadphones.
•Microphonemute/unmutecontrol
Usedtomuteorunmutetheintegratedmicrophones.
•Microphonemute/unmuteindicator
Whenthemicrophonemute/unmuteindicatorison,themicrophonesaremuted.
•Monitor/computermodeswitch
Usedtoswitchbetweenthemonitormodeandcomputermodemanually.
•Opticaldriveeject/closebutton
Usedtoejectthetrayoftheopticaldrivefromthedrive.Afteryouinsertadiscintothetray,press
theeject/closebuttontoclosethetray.
•Powerbutton
Usedtoturnonyourcomputer.Youalsocanusethepowerbuttontoturnoffyourcomputeronlywhen
youcannotuseanyMicrosoft®Windows®shutdownproceduretoturnoffyourcomputer.
•Powerindicator
Whenthepowerindicatorison,thecomputerison.
•Storagedriveactivityindicator
Whenthestoragedriveactivityindicatorison,thestoragedrivesareinuse.
28ThinkCentreM900zHardwareMaintenanceManual
Rearview
Note:Thecomputerstandisavailableonlyonsomemodels.
•Ifyourcomputercomeswithacomputerstand,ensurethatyouusethecomputerwiththestandinstalled.
Ifyouwanttousethecomputerwiththestandremoved,donotturnonthecomputerbeforecontacting
theLenovoCustomerSupportCenterfortheadditionalthermalsolution.
•Ifyourcomputerdoesnotcomewithacomputerstand,donottearofftheMylarontherearofthe
computer.Afterinitialsetup,youcanusethecomputer.
Figure2.Rearview
1Integratedcamerashieldcontrolslider(somemodels)2USB3.0connector
3AlwaysOnUSB3.0connector(forrapidcharge)4Headsetconnector(alsoknownascomboaudiojack)
5Cardreaderslot(somemodels)6USB3.0connectors(4)
7DisplayPort®in/outconnector8Ethernetconnector
9Serialconnector(somemodels)10Security-lockslot
11Powercordconnector
•AlwaysOnUSB3.0connector
UsedtoconnectadevicethatrequiresaUSB2.0orUSB3.0connection,suchasakeyboard,amouse,a
scanner,aprinter,orapersonaldigitalassistant(PDA).Withtheacpoweradapterconnected,youcan
chargetheautomaticallydetecteddeviceevenwhenthecomputerisinhibernationmodeorturnedoff.
ToenabletheAlwaysOnUSBfunction,openthePowerManagerprogram.See“Accessingaprogramon
yourcomputer”onpage39.Then,followtheinstructionsonthescreen.
Chapter2.Productoverview29
•Cardreaderslot
Usedtoholdacard-shapedstoragemediumsothatthecardreadercanreadthedataonthestorage
medium.
•DisplayPortin/outconnector
Usedtoreceiveorsendaudioandvideosignals.Whenahigh-performancemonitorisattachedtothis
connector,thecomputerautomaticallychangestothecomputermode.Whenanothercomputeris
attachedtothisconnector,thecomputerautomaticallychangestothemonitormode.
Note:WhenanotherM900zcomputerisattachedtothisDisplayPortin/outconnector,disabletheDP
Input/OutputDeviceAutoDetectionfeature.See“Enablingordisablingadevice”onpage63.Then,
usethemonitor/computermodeswitchesonboththecomputerstoswitchtothemonitormodeor
computermode.
•Ethernetconnector
UsedtoconnectanEthernetcableforalocalareanetwork(LAN).
Note:TooperatethecomputerwithinFederalCommunicationsCommission(FCC)ClassBlimits,usea
Category5eorbetterEthernetcable.
•Headsetconnector
Usedtoconnectearphones,headphones,oraheadsettoyourcomputer.
•Integratedcamerashieldcontrolslider
Usedtodisabletheintegratedcameraphysically.
•Powercordconnector
Usedtoconnectthepowercordtoyourcomputerforpowersupply.
•Security-lockslot
UsedtosecureaKensington-stylecablelock.Formoreinformation,see“AttachingaKensington-style
cablelock”onpage60.
•Serialconnector
Usedtoconnectanexternalmodem,aserialprinter,orotherdevicesthatuseaserialconnector.
•USB3.0connector
UsedtoconnectadevicethatrequiresaUSB2.0orUSB3.0connection,suchasakeyboard,amouse,a
scanner,aprinter,oraPDA.
30ThinkCentreM900zHardwareMaintenanceManual
Computercomponents
Note:Dependingonyourcomputermodel,someofthefollowingcomponentsmightnotbeavailable.
Figure3.Computercomponents
1UltraFlexIIStand2Tilt-onlymonitorstandbase
3Tilt-onlymonitorstand4Backcover
5Memorymodule6Memorymoduleshield
7Storagedrive8Storagedrivebracket
9Powercord
MajorFRUsandCRUs
Note:Dependingonyourcomputermodel,someofthefollowingcomponentsmightnotbeavailable.
Chapter2.Productoverview31
31
32ThinkCentreM900zHardwareMaintenanceManual
Figure4.MajorFRUsandCRUs
ThefollowingtableliststhemajorFRUsshownintheillustrationaboveandidentifieswhichFRUsare
alsoself-serviceCRUsoroptional-serviceCRUs.
Notes:
•Self-serviceCRUs:TheseCRUsunplugoraresecuredbynomorethantwoscrews.Examplesof
thesetypesofCRUsincludethekeyboard,themouse,anyUSBdevice,andthepowercord.Other
self-serviceCRUsdependingonproductdesignmightincludememorymodules,adaptercards,hard
diskdrives,andopticaldrives.
•Optional-serviceCRUs:TheseCRUsareisolatedpartswithinthecomputerandareconcealedbyan
accesspanelthatistypicallysecuredbymorethantwoscrews.Oncetheaccesspanelisremoved,the
specificCRUisvisible.
NumberFRUdescriptionSelf-serviceCRUOptional-serviceCRU
1UltraFlexIIStandYesNo
2Tilt-onlymonitorstandbaseYesNo
3Tilt-onlymonitorstandYesNo
4BackcoverYesNo
5ComputercoverNoNo
6SideI/OcoverNoNo
7MemorymoduleshieldYesNo
8SystemboardshieldNoNo
9SideI/ObracketNoNo
10VESAmountbracketNoNo
11Coverpresenceswitch(intrusionswitch)NoNo
12Wi-Fiantennas(2)NoNo
13IntegratedcameraNoNo
14HeatsinkNoNo
15LCDpanelNoNo
16Coin-cellbatteryNoNo
17SystemboardNoNo
18Wi-FicardNoNo
19MemorymoduleYesNo
20CardreaderNoNo
21SerialconnectormoduleNoNo
22PowercordYesNo
23ThermalsensorNoNo
24Internalspeakers(2)NoNo
25PowersupplyassemblyNoNo
26StoragedriveYesNo
27OpticaldriveholderNoNo
28OpticaldriveNoNo
Chapter2.Productoverview33
Partsonthesystemboard
Note:Forthepartsthataredisplayedonthefollowingfigurebutnotintroducedinthefollowingtable,see
“Frontview”onpage27and“Rearview”onpage29.
Figure5.Partsonthesystemboard
1LCDpowerconnector2Integratedcameraconnector
3Microprocessorsocket4Coin-cellbattery
5M.2Wi-Ficardslot6Memoryslot
7Memoryslot8PCH
9Internalspeakerconnector10Cardreaderconnector
11LCDpanelconnector12Serial(COM1)connector
13Thermalsensorconnector14Controlbuttonboardconnector
15Touchboardconnector16Powersupplyassemblyconnector
17SATAconnector1(connectingtotheopticaldrive)18Coverpresenceswitchconnector(Intrusionswitch
connector)
19SATAconnector2(connectingtothestoragedrive)20SATApowerconnector(connectingtothestorage
driveandopticaldrive)
21Systemfanconnector
Chapter2.Productoverview35
Machinetypeandmodellabel
Themachinetypeandmodellabelidentifiesyourcomputer.WhenyoucontactLenovoforhelp,themachine
typeandmodelinformationhelpssupporttechnicianstoidentifyyourcomputerandprovidefasterservice.
Themachinetypeandmodellabelisattachedonthesideofyourcomputerasshown.
Figure6.Machinetypeandmodellabel
Features
Thecomputerfeaturesintroducedinthissectionapplytovariousmodels.
Informationaboutyourcomputer
•Toviewbasicinformation(suchasmicroprocessorandmemoryinformation)aboutyourcomputer,
dothefollowing:
1.ClicktheStartbuttontoopentheStartmenu.
2.DependingonyourWindowsversion,dooneofthefollowing:
–ForWindows7:Right-clickComputer,andthenclickProperties.
–ForWindows10:ClickSettings➙System➙About.
•Toviewdetailedinformationaboutthedevices(suchastheopticaldriveandnetworkadapters)onyour
computer,dothefollowing:
1.DependingonyourWindowsversion,dooneofthefollowing:
–ForWindows7:ClicktheStartbuttontoopentheStartmenu.Right-clickComputer,andthen
clickProperties.
–ForWindows10:Right-clicktheStartbuttontoopentheStartcontextmenu.
2.ClickDeviceManager.Typetheadministratorpasswordorprovideconfirmationifprompted.
36ThinkCentreM900zHardwareMaintenanceManual
Preinstalledoperatingsystem
YourcomputerispreinstalledwithWindows7orWindows10operatingsystem.Additionaloperating
systemsmightbeidentifiedbyLenovoascompatiblewithyourcomputer.Todetermineifanoperating
systemhasbeencertifiedortestedforcompatibility,checktheWebsiteoftheoperatingsystemprovider.
Powersupply
150-wattautomaticvoltage-sensingpowersupply
Storagedrives
Yourcomputersupportsonestoragedrive.
Toviewtheamountofstoragedrivespace,dothefollowing:
1.DependingonyourWindowsversion,dooneofthefollowing:
•ForWindows7:ClicktheStartbuttontoopentheStartmenu.Right-clickComputer,andthenclick
Manage.
•ForWindows10:Right-clicktheStartbuttontoopentheStartcontextmenu.
2.ClickDiskManagement.
Videofeatures
TheintegratedgraphicscardsupportstheDisplayPortin/outconnectoronyourcomputer.
Audiofeatures
Theintegratedaudiocardsupportsthefollowingaudioconnectorsanddevicesonyourcomputer:
•Headsetconnector(alsoknownascomboaudiojack)
•Integratedmicrophone(availableonsomemodels)
•Internalspeaker
Input/Output(I/O)features
•Cardreaderslot(availableonsomemodels)
•DisplayPortin/outconnector
•Ethernetconnector
•Headsetconnector(alsoknownascomboaudiojack)
•Serialconnector(availableonsomemodels)
•USBconnector
Expansion
•Cardreader(availableonsomemodels)
•Memoryslot
•Opticaldrive(availableonsomemodels)
•Storagedrivebay
Networkfeatures
•EthernetLAN
TheintegratednetworkinterfacecardsupportstheEthernetconnectoronyourcomputer.
•WirelessLAN(availableonsomemodels)
•Bluetooth(availableonsomemodels)
Chapter2.Productoverview37
Securityfeatures
Formoreinformation,seeChapter5“Security”onpage59.
Systemmanagementfeatures
•Abilitytostorepower-onself-test(POST)hardwaretestresults
•DesktopManagementInterface(DMI)
DesktopManagementInterfaceprovidesacommonpathforuserstoaccessinformationaboutall
aspectsofacomputer.Theinformationincludesprocessortype,installationdate,connectedprintersand
otherperipherals,powersources,maintenancehistory,andsoon.
•ErPLPScompliancemode
Theenergy-relatedproductsdirective(ErP)lowestpowerstate(LPS)compliancemodereducesthe
consumptionofelectricitywhenyourcomputerisinsleeporoffmode.Formoreinformation,see
“EnablingordisablingErPLPScompliancemode”onpage64.
•IntelligentCoolingEngine(ICE)
TheIntelligentCoolingEngineisasystemthermalmanagementsolutionthatenablesyourcomputer
torunwithbetterthermalandacousticperformance.TheICEfunctionalsomonitorsthethermal
performanceofyourcomputertoidentifythermalproblems.Formoreinformation,see“ChangingICE
PerformanceMode”onpage64and“EnablingordisablingtheICEThermalAlertfeature”onpage65.
•Intel®StandardManageability
IntelStandardManageabilityishardware-andfirmware-basedtechnologythatmakescomputerseasier
andlessexpensiveforbusinessestomonitor,maintain,update,upgrade,andrepair.
•IntelActiveManagementTechnology(AMT)(availableonsomemodels)
IntelActiveManagementTechnologyishardware-andfirmware-basedtechnologythatmakescomputers
easierandlessexpensiveforbusinessestomonitor,maintain,update,upgrade,andrepair.
•PrebootExecutionEnvironment(PXE)
PrebootExecutionEnvironmentenablescomputerstostartthroughanetworkinterfaceindependentof
datastoragedrives(suchasharddiskdrives)orinstalledoperatingsystems.
•SystemManagement(SM)BasicInput/OutputSystem(BIOS)andSMsoftware
TheSMBIOSspecificationdefinesdatastructuresandaccessmethodsthatcanbeusedtoread
managementdatastoredintheBIOSofacomputer.
•WakeonLAN
WakeonLANisanEthernetcomputernetworkingstandardthatallowsacomputertobeturnedon
orwokenupbyanetworkmessage.Themessageusuallyissentbyaprogramrunningonanother
computeronthesameLAN.
•WakeonRing
WakeonRing,sometimesreferredtoasWakeonModem,isaspecificationthatallowssupported
computersanddevicestoresumefromsleeporhibernationmode.
•WindowsManagementInstrumentation(WMI)
WindowsManagementInstrumentationisasetofextensionstotheWindowsDriverModel.Itprovidesan
operatingsysteminterfacethroughwhichinstrumentedcomponentsprovideinformationandnotification.
38ThinkCentreM900zHardwareMaintenanceManual
Specifications
Thissectionliststhephysicalspecificationsforyourcomputer.
Dimensions(withoutacomputerstand)
Width:584mm(23.0inches)
Height:390mm(15.4inches)
Depth:45mm(1.8inches)
Weight(withoutthepackage)
Maximumconfigurationasshipped:10.9kg(24.0lb)
Environment
•Airtemperature:
Operating:From10°C(50°F)to35°C(95°F)
Storageinoriginalshippingpackage:From-40°C(-40°F)to60°C(140°F)
Storagewithoutpackage:From-10°C(14°F)to60°C(140°F)
•Humidity:
Operating:20%–80%(non-condensing)
Storage:20%–90%(non-condensing)
•Altitude:
Operating:From-15.2m(-50ft)to3048m(10000ft)
Storage:From-15.2m(-50ft)to10668m(35000ft)
Electricalinput
Inputvoltage:From100Vacto240Vac
Inputfrequency:50/60Hz
Programs
Thissectionprovidesinformationabouttheprogramsonyourcomputer.
Accessingaprogramonyourcomputer
Note:ForWindows7,dependingonyourcomputermodel,someoftheLenovoprogramsmightbereadyto
beinstalled,soyouneedtoinstallthemmanually.Then,youcanaccessandusetheseprograms.
Toaccessaprogramonyourcomputer,dooneofthefollowing:
•FromWindowsSearch:
1.DependingonyourWindowsversion,dooneofthefollowing:
–ForWindows7:ClicktheStartbuttontoopentheStartmenu,andthentypetheprogramname
intothesearchbox.
–ForWindows10:TypetheprogramnameintothesearchboxnexttotheStartbutton.
2.Inthesearchresults,clickthenameofthedesiredprogramtolaunchtheprogram.
•FromtheStartmenuorControlPanel:
1.ClicktheStartbuttontoopentheStartmenu.Then,clickthenameofthedesiredprogramto
launchtheprogram.
Chapter2.Productoverview39
2.Iftheprogramnameisnotdisplayed,clickAllProgramsforWindows7orAllappsforWindows
10todisplaytheprogramlist.Fromthelistorafolderinthelist,clickthenameofthedesired
programtolaunchtheprogram.
3.IftheprogramnameisnotdisplayedontheStartmenu,accesstheprogramfromControlPanel.
a.DependingonyourWindowsversion,dooneofthefollowing:
–ForWindows7:ClickControlPanelontheStartmenu.
–ForWindows10:Right-clicktheStartbuttontoopentheStartcontextmenu,andthenclick
ControlPanel.
b.ViewControlPanelusingLargeiconsorSmallicons,andthenclickthenameofthedesired
programtolaunchtheprogram.
Installingaprogramthatisreadytobeinstalled
Toinstallaprogramthatisreadytobeinstalled,dothefollowing:
1.OpentheLenovoThinkVantage®Toolsprogram.See“Accessingaprogramonyourcomputer”on
page39.
2.ViewtheprogramiconsusingTiles.
3.Followtheinstructionsundergreyed-outiconstolocatetheiconforthedesiredprogram.Then,
double-clicktheicontoinstalltheprogram.
AnintroductiontoLenovoprograms
ThissectionprovidesinformationaboutthemajorLenovoprogramsavailableonyouroperatingsystem.
Note:Dependingonyourcomputermodel,someofthefollowingprogramsmightnotbeavailable.
•ForWindows7only:
–CreateRecoveryMedia
TheCreateRecoveryMediaprogramenablesyoutorestoreonlytheCdriveortheentirestorage
drivetothefactory-defaultsettings.
–FingerprintManagerProorThinkVantageFingerprintSoftware
TheFingerprintManagerProorThinkVantageFingerprintSoftwareprogramenablesyoutousea
fingerprintreader.Theintegratedfingerprintreaderprovidedonsomekeyboardsenablesyoutoenroll
yourfingerprintandassociateitwithyourpower-onpassword,harddiskpassword,andWindows
password.Asaresult,fingerprintauthenticationcanreplacepasswordsandenablesimpleandsecure
useraccess.
–LenovoPowerENGAGE
TheLenovoPowerENGAGEprogramenablesyoutoregisteryourcomputerwithLenovo.
–PasswordManager
ThePasswordManagerprogramautomaticallycapturesandfillsinauthenticationinformationfor
WindowsprogramsandWebsites.
–RescueandRecovery®
TheRescueandRecoveryprogramisaone-buttonrecoveryandrestoresolution.Itincludesaset
ofself-recoverytoolstohelpyoudiagnosecomputerproblems,gethelp,andrecoverfromsystem
crashes,evenifyoucannotstarttheWindowsoperatingsystem.
40ThinkCentreM900zHardwareMaintenanceManual
–SystemUpdate
TheSystemUpdateprogramprovidesregularaccesstothesystemupdatesforyourcomputer,such
asdevicedriverupdates,softwareupdates,andBIOSupdates.Theprogramgathersinformationfrom
theLenovoHelpCenteraboutnewupdatesforyourcomputer,thensortsanddisplaystheupdatesfor
downloadandinstallation.Youhavecompletecontrolofwhichupdatestodownloadandinstall.
•ForWindows10only:
–LenovoCompanion
Yourcomputer’sbestfeaturesandcapabilitiesshouldbeeasytoaccessandunderstand.WithLenovo
Companion,theyare.UseLenovoCompaniontodothefollowing:
–Optimizeyourcomputer’sperformance,monitoryourcomputer’shealth,andmanageupdates.
–Accessyouruserguide,checkwarrantystatus,andviewaccessoriescustomizedforyourcomputer.
–Readhow-toarticles,exploreLenovoforums,andstayup-to-dateontechnologynewswitharticles
andblogsfromtrustedsources.
LenovoCompanionisfilledwithexclusiveLenovocontenttohelpyoulearnmoreaboutwhatyou
candowithyourcomputer.
–LenovoID
TheLenovoIDprogramenablesyoutocreateyourLenovoIDandaccessallsupportedLenovo
programsandwebportalswithsinglesign-on.
–LenovoSettings
TheLenovoSettingsprogramistheonestopshopforyoutocontrolhardwarefeatures,sensors
andprogramsonyourcomputer.LenovoSettingsenablesyoutooptimizedeviceperformanceby
customizingkeyfunctions,suchaspowerplans,audio,camera,andnetworks.
•ForWindows7andWindows10:
–LenovoBluetoothLock
TheLenovoBluetoothLockprogramenablesyoutouseaBluetoothdevice(suchasyoursmartphone)
asaproximity-basedunitforlockingorunlockingyourcomputerautomatically.Bydetectingthe
distancebetweenyourcomputerandthepredefinedBluetoothdevicethatyouarecarrying,theLenovo
BluetoothLockprogramautomaticallylocksyourcomputerwhenyouwalkawayandunlocksyour
computerwhenyoucomeback.Thisisasimplewaytoprotectyourcomputeragainstunauthorized
accessincasethatyouforgettolockyourcomputer.
–LenovoDeviceExperienceorLenovoPCExperience
TheLenovoDeviceExperienceorLenovoPCExperienceprogramhelpsyouworkmoreeasilyand
securely.TheprogramprovideseasyaccesstoLenovoThinkVantageToolsorLenovoTools,important
settingsandinformationaboutyourcomputer,theLenovoSupportWebsite,andsoon.
–LenovoSolutionCenter
TheLenovoSolutionCenterprogramenablesyoutotroubleshootandresolvecomputerproblems.It
combinesdiagnostictests,systeminformationcollection,securitystatus,andsupportinformation,
alongwithhintsandtipsformaximumsystemperformance.
–PowerManager
ThePowerManagerprogramprovidesconvenient,flexible,andcompletepowermanagementfor
yourcomputer.Itenablesyoutoadjustyourcomputerpowersettingstoachievethebestbalance
betweenperformanceandpowersaving.
Chapter2.Productoverview41
42ThinkCentreM900zHardwareMaintenanceManual
Chapter3.Usingyourcomputer
Thischaptercontainsthefollowingtopics:
•“Adjustingthecomputerstand”onpage43
•“Registeringyourcomputer”onpage46
•“Settingthecomputervolume”onpage46
•“AddinganicontotheWindowsnotificationarea”onpage46
•“Usingadisc”onpage47
•“Connectingtoanetwork”onpage48
•“Usingthesingle-touchormulti-touchfeature”onpage49
Adjustingthecomputerstand
Youcanusethecomputerstandtoadjustthecomputertoapositioncomfortableforyou.
Note:Thecomputerstandisavailableonlyonsomemodels.
•Ifyourcomputercomeswithacomputerstand,ensurethatyouusethecomputerwiththestandinstalled.
Ifyouwanttousethecomputerwiththestandremoved,donotturnonthecomputerbeforecontacting
theLenovoCustomerSupportCenterfortheadditionalthermalsolution.
•Ifyourcomputerdoesnotcomewithacomputerstand,donottearofftheMylarontherearofthe
computer.Afterinitialsetup,youcanusethecomputer.
Adjustingthetilt-onlymonitorstand
Youcanadjusttheverticalpositionofthecomputerbetween5°tothefrontand45°totherearasshown.
Figure7.Adjustingthetilt-onlymonitorstand
©CopyrightLenovo201543
Youcanmanagecables(suchascablesofthekeyboardandmouse)byroutingthecablesthroughthecable
looponthestandasshown.
Figure8.Cablelooponthetilt-onlymonitorstand
AdjustingtheUltraFlexIIStand
YoucanusetheUltraFlexIIStandtoadjustthecomputerbydoingthefollowing:
1.Youcanadjusttheverticalpositionofthecomputerbetween5°tothefrontand61°totherearasshown.
Figure9.Adjustingtheverticalpositionofthecomputertothefrontortotherear
44ThinkCentreM900zHardwareMaintenanceManual
2.Afteryouadjustyourcomputertotherear,youcanadjusttheUltraFlexIIStanddownwardwithina
rangeof59°asshown.
Figure10.AdjustingtheUltraFlexIIStanddownward
3.Youcanadjusttheangleofthecomputerbetween45°totheleftand45°totherightasshown.
Figure11.Adjustingthecomputertotheleftortotheright
Chapter3.Usingyourcomputer45
Youcanmanagecables(suchascablesofthekeyboardandmouse)byroutingthecablesthroughthecable
looponthestandasshown.
Figure12.CableloopontheUltraFlexIIStand
Registeringyourcomputer
WhenyouregisteryourcomputerwithLenovo,youenterrequiredinformationintoaLenovodatabase.The
informationenablesLenovotocontactyouwhenthereisarecallorothersevereproblemandprovide
quickerservicewhenyoucallLenovoforhelp.Inaddition,somelocationsofferextendedprivilegesand
servicestoregisteredusers.
ToregisteryourcomputerwithLenovo,ensurethatyourcomputerisconnectedtotheInternet.Then,goto
http://www.lenovo.com/registerandfollowtheinstructionsonthescreen.
Settingthecomputervolume
Tosetthecomputervolume,dothefollowing:
1.ClickthevolumeiconintheWindowsnotificationareaonthetaskbar.
Note:IfthevolumeiconisnotdisplayedintheWindowsnotificationarea,addtheicontothe
notificationarea.See“AddinganicontotheWindowsnotificationarea”onpage46.
2.Followtheinstructionsonthescreentoadjustthevolume.Clickthespeakericontomutetheaudio.
AddinganicontotheWindowsnotificationarea
ToaddanicontotheWindowsnotificationarea,dothefollowing:
1.Clickthearrownexttothenotificationareatoviewhiddenicons.Then,clickthedesirediconand
dragittothenotificationarea.
2.Iftheiconisnotdisplayed,turnontheicon.
a.ClicktheStartbuttontoopentheStartmenu.
b.DependingonyourWindowsversion,dooneofthefollowing:
•ForWindows7:ClickControlPanel.ViewControlPanelusingLargeiconsorSmallicons,and
thenclickNotificationAreaIcons➙Turnsystemiconsonoroff.
•ForWindows10:ClickSettings➙System➙Notifications&actions➙Turnsystemicons
onoroff.
c.Turnonthedesiredicon.
46ThinkCentreM900zHardwareMaintenanceManual
3.IftheiconisstillnotdisplayedintheWindowsnotificationarea,repeatstep1.
Usingadisc
Thissectionprovidesinformationaboutusingadiscandtheopticaldrive.
Guidelinesaboutusingtheopticaldrive
Whenusingtheopticaldrive,followtheseguidelines:
•Donotplacethecomputerinalocationwherethedriveisexposedtoanyofthefollowingconditions:
–Hightemperature
–Highhumidity
–Excessivedust
–Excessivevibrationorsuddenshock
–Aninclinedsurface
–Directsunlight
•Donotinsertanyobjectotherthanadiscintothedrive.
•Donotinsertdamageddiscsintothedrive.Warped,scratched,ordirtydiscscandamagethedrive.
•Beforemovingthecomputer,removethediscfromthedrive.
Handlingandstoringadisc
Whenhandlingandstoringadisc,followtheseguidelines:
•Holdthediscbyitsedges.Donottouchthesurfaceofthesidethatisnotlabeled.
•Toremovedustorfingerprints,wipethediscwithaclean,softclothfromthecentertotheoutside.Wiping
thediscinacirculardirectionmightcauselossofdata.
•Donotwriteorstickpaperonthedisc.
•Donotscratchormarkthedisc.
•Donotplaceorstorethediscindirectsunlight.
•Donotusebenzene,thinners,orothercleanerstocleanthedisc.
•Donotdroporbendthedisc.
Playingandremovingadisc
Toplayadisc,dothefollowing:
1.Withthecomputeron,presstheeject/closebuttononthefrontoftheopticaldrive.Thetrayslides
outofthedrive.
2.Insertadiscintothetray.Someopticaldrivehasasnaphubinthecenterofthetray.Ifyourdrivehasa
snaphub,supportthetraywithonehandandthenpushcenterofthediscuntilitsnapsintoplace.
3.Presstheeject/closebuttonagainorgentlypushthetrayforwardtoclosethetray.Thediscplayer
programstartsautomatically.Formoreinformation,refertothehelpsystemofthediscplayerprogram.
Toremoveadiscfromtheopticaldrive,dothefollowing:
1.Withthecomputeron,presstheeject/closebuttononthefrontoftheopticaldrive.Thetrayslides
outofthedrive.
2.Carefullyremovethediscfromthetray.
3.Presstheeject/closebuttonagainorgentlypushthetrayforwardtoclosethetray.
Chapter3.Usingyourcomputer47
Note:Ifthetraydoesnotslideoutofthedrivewhenyoupresstheeject/closebutton,turnoffyourcomputer.
Then,insertastraightenedpaperclipintotheemergency-ejectholeadjacenttotheeject/closebutton.
Usetheemergencyejectonlyinanemergency.
Recordingadisc
Ifyouropticaldrivesupportsrecording,youcanrecordadisc.
RecordingadiscusingWindowstools
TorecordadiscusingWindowstools,dooneofthefollowing:
•BurnadiscusingtheAutoPlaywindow.
1.Ensurethatthediscisplayedautomatically.
a.ClicktheStartbuttontoopentheStartmenu.
b.DependingonyourWindowsversion,dooneofthefollowing:
–ForWindows7:ClickControlPanel.ViewControlPanelusingLargeiconsorSmallicons,
andthenclickAutoPlay.
–ForWindows10:ClickSettings➙Devices➙AutoPlay.
c.SelectorturnonUseAutoPlayforallmediaanddevices.
2.Insertarecordablediscintotheopticaldrivethatsupportsrecording.TheAutoPlaywindowopens.
3.Followtheinstructionsonthescreen.
•BurnadiscusingWindowsMedia®Player.
1.Insertarecordablediscintotheopticaldrivethatsupportsrecording.
2.OpenWindowsMediaPlayer.See“Accessingaprogramonyourcomputer”onpage39.
3.Followtheinstructionsonthescreen.
•BurnadiscfromanISOfile.
1.Insertarecordablediscintotheopticaldrivethatsupportsrecording.
2.Double-clicktheISOfile.
3.Followtheinstructionsonthescreen.
Recordingadiscusingpreinstalledprograms
Torecordadiscusingpreinstalledprograms,dothefollowing:
1.Insertarecordablediscintotheopticaldrivethatsupportsrecording.
2.OpenthePowerDVDCreate,PowerProducer,orPower2Goprogram.See“Accessingaprogramon
yourcomputer”onpage39.
3.Followtheinstructionsonthescreen.
Connectingtoanetwork
Thissectionprovidesinformationaboutconnectingtoanetwork.Ifyoucannotconnectyourcomputertoa
network,see“Networkingproblems”onpage73.
ConnectingtoanEthernetLAN
YoucanconnectyourcomputertoanEthernetLANbyconnectinganEthernetcabletotheEthernet
connector.
48ThinkCentreM900zHardwareMaintenanceManual
DANGER
Toavoidtheriskofelectricalshock,donotconnectthetelephonecabletotheEthernetconnector.
ConnectingtoawirelessLAN
YoucanconnectyourcomputertoawirelessLANwithouttheuseofanEthernetcablebutbymeansof
radiowavesonly.
Note:ThewirelessLANfeatureissupportedonlyonsomemodels.
Toestablishawireless-LANconnection,dothefollowing:
1.EnsurethatawirelessLANisavailableandthewirelessLANfeatureonyourcomputerisworking.
2.Clickthewireless-network-connection-statusiconintheWindowsnotificationareatodisplayavailable
wirelessnetworks.
Note:Ifthewireless-network-connection-statusiconisnotdisplayedintheWindowsnotificationarea,
addtheicontothenotificationarea.See“AddinganicontotheWindowsnotificationarea”onpage46.
3.ClickawirelessLAN,andthenclickConnecttoconnectyourcomputertoit.Providerequired
informationifneeded.
ConnectingtoaBluetooth-enableddevice
Bluetoothisashort-rangewirelesscommunicationstechnology.UseBluetoothtoestablishawireless
connectionbetweenyourcomputerandanotherBluetooth-enableddevicewithinadistanceofabout10
m(32.8ft).
Note:TheBluetoothfeatureissupportedonlyonsomemodels.
ToconnecttoaBluetooth-enableddevice,dothefollowing:
1.EnsurethattheBluetoothfeatureonyourcomputerisworkingandtheBluetooth-enableddeviceis
locatedwithinadistanceofabout10m(32.8ft)fromyourcomputer.
2.ClicktheBluetoothiconintheWindowsnotificationareaonthetaskbar.Then,clickAddaDeviceand
followtheinstructionsonthescreen.
Note:IftheBluetoothiconisnotdisplayedintheWindowsnotificationarea,addtheicontothe
notificationarea.See“AddinganicontotheWindowsnotificationarea”onpage46.
Usingthesingle-touchormulti-touchfeature
Dependingonyourcomputermodel,yourcomputercomeswiththesingle-touchormulti-touchfeature.
Thesingle-touchfeatureenablesyoutouseonlyonefingeratatimetointeractwithyourcomputer.The
multi-touchfeatureenablesyoutouseoneortwofingerstointeractwithyourcomputer.
Note:Thesingle-touchandmulti-touchfeaturesareavailableonlyonsomemodels.
Tousethesingle-touchormulti-touchfeature,dothefollowing:
•Tomakeasingleclick,tapthetouchscreenoncewithyourfinger.
•Tomakeadouble-click,taptwicewithoutpausing.
•Tomakearight-click,tapthetouchscreenonceandthenholdyourfingeronthetouchscreenuntila
roundcircleisdisplayed.Then,liftyourfingeroffthetouchscreensothatacontextmenuisdisplayed.
Youcanmakeyourselectiononthemenu.
Chapter3.Usingyourcomputer49
•Tomakeiteasiertoreadoreditadocument,usetwofingerstozoomin,zoomout,scroll,orrotate
onthetouchscreen.
50ThinkCentreM900zHardwareMaintenanceManual
Chapter4.Youandyourcomputer
Thischaptercontainsthefollowingtopics:
•“Arrangingyourworkspace”onpage51
•“Accessibilityinformation”onpage52
•“Cleaningyourcomputer”onpage55
•“Maintenance”onpage55
•“Movingyourcomputer”onpage57
Arrangingyourworkspace
Arrangeyourworkspacetosuityourneedsandthekindofworkyoudo.Thissectionprovidesinformation
aboutthefactorsthataffectthewayyouarrangeyourworkspace.
Glareandlighting
Positionthecomputertominimizeglareandreflectionsfromoverheadlights,windows,andotherlight
sources.Reflectedlightfromshinysurfacescancauseannoyingreflectionsonyourscreen.Whenpossible,
placethecomputeratrightanglestowindowsandotherlightsources.Ifnecessary,reduceoverhead
lightingbyturningofflightsorusinglowerwattagebulbs.Ifyouinstallthecomputernearawindow,use
curtainsorblindstoblockthesunlight.Youcanadjustthebrightnessandcontrastcontrolsonthecomputer
astheroomlightingchangesthroughouttheday.
Whereitisimpossibletoavoidreflectionsortoadjustthelighting,anantiglarefilterplacedoverthescreen
mightbehelpful.However,thesefiltersmightaffecttheclarityoftheimageonthescreen;trythemonlyafter
youhaveexhaustedothermethodsofreducingglare.
Aircirculation
Yourcomputerproducesheat.Thecomputerhasafanthatpullsinfreshairandforcesouthotairthrough
theairvents.Blockingtheairventscancauseoverheating,whichmightresultinamalfunctionordamage.
Positionthecomputersothatnothingblockstheairvents;usually,51mm(2inches)ofairspaceissufficient.
Ensurethattheventedairisnotblowingonpeople.
Electricaloutletlocationsandcablelengths
Thefollowingfactorsmightdeterminethefinalplacementofyourcomputer:
•Locationsofelectricaloutlets
•Lengthofpowercordsorpoweradapters
•Lengthofthecablesthatareconnectedtootherdevices
Formoreinformationaboutpowercordsorpoweradapters,see“Powercordsandpoweradapters”on
page1.
Comfort
Althoughnosingleworkingpositionisidealforeveryone,hereareafewguidelinestohelpyoufindaposition
thatsuitsyoubest.Thefollowingfiguresetsanexampleforyourreference.
©CopyrightLenovo201551
•Screenposition:Keepthescreenatacomfortableviewingdistance,usually51-61cm(20-24inches).
Then,adjustthescreensothatthetopofthescreenisatorslightlybeloweyelevelandyoucanviewit
withouttwistingyourbody.
•Chairposition:Useachairthatgivesyougoodbacksupportandseatheightadjustment.Usechair
adjustmentstobestsuityourdesiredposture.
•Headposition:Keepyourheadandneckinacomfortableandneutral(verticalorupright)position.
•Armandhandpositions:Keepyourforearms,wrists,andhandsinarelaxedandneutral(horizontal)
position.Typewithasofttouchwithoutpoundingthekeys.
•Legposition:Keepyourthighsparalleltothefloorandyourfeetflatonthefloororonafootrest.
Makeminormodificationsinyourworkingposturetodetertheonsetofdiscomfortcausedbylongperiodsof
workinginthesameposition.Frequent,shortbreaksfromyourworkalsohelptopreventminordiscomfort
associatedwithyourworkingposture.
Accessibilityinformation
Lenovoiscommittedtoprovidinguserswhohavehearing,vision,andmobilitylimitationswithgreater
accesstoinformationandtechnology.Thissectionprovidesinformationaboutthewaystheseuserscanget
themostoutoftheircomputerexperience.Youalsocangetthemostup-to-dateaccessibilityinformation
fromthefollowingWebsite:
http://www.lenovo.com/accessibility
Keyboardshortcuts
Thefollowingtablecontainskeyboardshortcutsthatcanhelpmakeyourcomputereasiertouse.
Note:Dependingonyourkeyboard,someofthefollowingkeyboardshortcutsmightnotbeavailable.
KeyboardshortcutFunction
Windowslogokey+UOpenEaseofAccessCenter
RightShiftforeightsecondsTurnonorturnoffFilterKeys
ShiftfivetimesTurnonorturnoffStickyKeys
NumLockforfivesecondsTurnonorturnoffToggleKeys
LeftAlt+LeftShift+NumLockTurnonorturnoffMouseKeys
LeftAlt+LeftShift+PrtScn(orPrtSc)TurnonorturnoffHighContrast
Formoreinformation,gotohttp://windows.microsoft.com/,andthenperformasearchusinganyofthe
followingkeywords:keyboardshortcuts,keycombinations,shortcutkeys.
52ThinkCentreM900zHardwareMaintenanceManual
EaseofAccessCenter
EaseofAccessCenterontheWindowsoperatingsystemenablesuserstoconfiguretheircomputersto
suittheirphysicalandcognitiveneeds.
TouseEaseofAccessCenter,dothefollowing:
1.ClicktheStartbuttontoopentheStartmenu.
2.DependingonyourWindowsversion,dooneofthefollowing:
•ForWindows7:ClickControlPanel.ViewControlPanelusingLargeiconsorSmallicons,and
thenclickEaseofAccessCenter.
•ForWindows10:ClickSettings➙EaseofAccess.
3.Choosetheappropriatetoolbyfollowingtheinstructionsonthescreen.
EaseofAccessCentermainlyincludesthefollowingtools:
•Magnifier
Magnifierisausefulutilitythatenlargestheentirescreenorpartofthescreensothatyoucansee
theitemsbetter.
•Narrator
Narratorisascreenreaderthatreadsaloudwhatisdisplayedonthescreenanddescribeseventssuchas
errormessages.
•On-ScreenKeyboard
Ifyouprefertotypeorenterdataintoyourcomputerusingamouse,joystick,orotherpointingdevice
insteadofaphysicalkeyboard,youcanuseOn-ScreenKeyboard.On-ScreenKeyboarddisplaysavisual
keyboardwithallthestandardkeys.
•HighContrast
HighContrastisafeaturethatheightensthecolorcontrastofsometextandimagesonyourscreen.Asa
result,thoseitemsaremoredistinctandeasiertoidentify.
•Personalizedkeyboard
Adjustkeyboardsettingstomakeyourkeyboardeasiertouse.Forexample,youcanuseyourkeyboard
tocontrolthepointerandtypecertainkeycombinationseasier.
•Personalizedmouse
Adjustmousesettingstomakeyourmouseeasiertouse.Forexample,youcanchangethepointer
appearanceandmakeiteasiertomanagewindowswiththemouse.
SpeechRecognition
SpeechRecognitionenablesyoutocontrolyourcomputerbyvoice.
Usingonlyyourvoice,youcanstartprograms,openmenus,clickobjectsonthescreen,dictatetextinto
documents,andwriteandsende-mails.Everythingyoudowiththekeyboardandmousecanbedonewith
onlyyourvoice.
TouseSpeechRecognition,dothefollowing:
1.DependingonyourWindowsversion,dooneofthefollowing:
•ForWindows7:ClicktheStartbuttontoopentheStartmenu.
•ForWindows10:Right-clicktheStartbuttontoopentheStartcontextmenu.
2.ClickControlPanel.ViewControlPanelusingLargeiconsorSmallicons,andthenclickSpeech
Recognition.
Chapter4.Youandyourcomputer53
3.Followtheinstructionsonthescreen.
Screen-readertechnologies
Screen-readertechnologiesareprimarilyfocusedonsoftwareprograminterfaces,helpinformationsystems,
andvariousonlinedocuments.Foradditionalinformationaboutscreenreaders,seethefollowing:
•UsingPDFswithscreenreaders:
http://www.adobe.com/accessibility.html?promoid=DJGVE
•UsingtheJAWSscreenreader:
http://www.freedomscientific.com/jaws-hq.asp
•UsingtheNVDAscreenreader:
http://www.nvaccess.org/
Screenresolution
Youcanmakethetextandimagesonyourscreeneasiertoreadbyadjustingthescreenresolutionofyour
computer.
Toadjustthescreenresolution,dothefollowing:
1.Right-clickablankareaonthedesktop.
2.DependingonyourWindowsversion,dooneofthefollowing:
•ForWindows7:ClickScreenresolution.
•ForWindows10:ClickDisplaysettings.OntheDisplaytab,clickAdvanceddisplaysettings.
3.Followtheinstructionsonthescreen.
Note:Settingtheresolutiontoolowmightpreventsomeitemsfromfittingonthescreen.
Customizableitemsize
Youcanmaketheitemsonyourscreeneasiertoreadbychangingtheitemsize.
•Tochangetheitemsizetemporarily,usetheMagnifiertoolinEaseofAccessCenter.See“Easeof
AccessCenter”onpage53.
•Tochangetheitemsizepermanently,dothefollowing:
–Changethesizeofalltheitemsonyourscreen.
1.Right-clickablankareaonthedesktop.
2.DependingonyourWindowsversion,dooneofthefollowing:
–ForWindows7:ClickScreenresolution➙Maketextandotheritemslargerorsmaller.
–ForWindows10:ClickDisplaysettings.
3.Changetheitemsizebyfollowingtheinstructionsonthescreen.
4.ClickApply.Thischangewilltakeeffectthenexttimeyoulogintotheoperatingsystem.
–ChangethesizeoftheitemsonaWebpage.
PressandholdCtrl,andthenpresstheplus-signkey(+)toenlargeortheminus-signkey(-)to
reducethetextsize.
–Changethesizeoftheitemsonthedesktoporawindow.
Note:Thisfunctionmightnotworkonsomewindows.
Ifyourmousehasawheel,pressandholdCtrl,andthenscrollthewheeltochangetheitemsize.
54ThinkCentreM900zHardwareMaintenanceManual
Industry-standardconnectors
Yourcomputerprovidesindustry-standardconnectorsthatenableyoutoconnectassistivedevices.
Formoreinformationaboutthelocationandfunctionoftheconnectors,see“Hardwarelocations”on
page27.
TTY/TDDconversionmodem
Yourcomputersupportstheuseofatexttelephone(TTY)orthetelecommunicationsdeviceforthedeaf
(TDD)conversionmodem.ThemodemmustbeconnectedbetweenyourcomputerandaTTY/TDD
telephone.Then,youcantypeamessageonyourcomputerandsendittothetelephone.
Documentationinaccessibleformats
Lenovoprovideselectronicdocumentationinaccessibleformats,suchasproperlytaggedPDFfilesor
HyperTextMarkupLanguage(HTML)files.Lenovoelectronicdocumentationisdevelopedtoensure
thatvisuallyimpaireduserscanreadthedocumentationthroughascreenreader.Eachimageinthe
documentationalsoincludesadequatealternativetextsothatvisuallyimpaireduserscanunderstandthe
imagewhentheyuseascreenreader.
Cleaningyourcomputer
CAUTION:
Removeanymediafromthedrivesandturnoffallconnecteddevicesandthecomputer.Then,
disconnectallpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnected
tothecomputer.
Itisagoodpracticetocleanyourcomputerperiodicallytoprotectthesurfacesandensuretrouble-free
operation.Useonlymildcleaningsolutionsandadampclothtocleanthepaintedsurfacesofthecomputer.
Dustbuildupcompoundsproblemsassociatedwithglare,soremembertocleanthescreenperiodically.
Wipethescreensurfacegentlywithasoft,drycloth,orblowonthescreentoremovegritandotherloose
particles.Dependingonthetypeofthescreen,moistenasoft,lint-freeclothwithanLCDcleanerorliquid
glasscleanerandthenwipethescreensurface.
Maintenance
Withappropriatecareandmaintenance,yourcomputerwillserveyoureliably.Thissectionprovides
informationaboutmaintainingyourcomputersothatitcankeepworkingintoporder.
Basicmaintenancetips
Herearesomebasicpointsaboutkeepingyourcomputerfunctioningproperly:
•Keepyourcomputerinaclean,dryenvironment.Ensurethatthecomputerrestsonaflat,steadysurface.
•Donotcoveranyofairvents.Theseairventsprovideairflowtokeepyourcomputerfromoverheating.
•Keepfoodanddrinksawayfromallpartsofyourcomputer.Foodparticlesandspillsmightmakethe
keyboardandmousestickandunusable.
•Donotgetthepowerswitchesorothercontrolswet.Moisturecandamagethesepartsandcausean
electricalhazard.
•Alwaysdisconnectapowercordbygraspingthepluginsteadofthecord.
Chapter4.Youandyourcomputer55
Goodmaintenancepractices
Byperformingafewgoodmaintenancepractices,youcanmaintaingoodcomputerperformance,protect
yourdata,andbepreparedincaseofacomputerfailure.
•Keepyourcomputersoftware,devicedrivers,andoperatingsystemup-to-date.See“Keepingyour
computercurrent”onpage56.
•Emptyyourrecyclebinonaregularbasis.
•CleanoutyourInbox,SentItems,andDeletedItemsfoldersinyoure-mailapplicationonaregularbasis.
•Cleanupfilesandfreeupstoragedrivespaceandmemoryspaceoccasionallytopreventperformance
problems.See“Performanceproblems”onpage75.
•Keepalogbook.Entriesmightincludemajorsoftwareorhardwarechanges,device-driverupdates,
intermittentproblemsandwhatyoudidtoresolvethem,andotherissuesyoumighthaveexperienced.
Thecauseofaproblemmightbechangeinhardware,changeinsoftware,oranyotheractionsthatmight
havetakenplace.AlogbookcanhelpyouoraLenovotechniciandeterminethecauseofaproblem.
•Backupyourdataonthestoragedriveregularly.Youcanrestorethestoragedrivefromabackup.
Tobackupyourdata,dooneofthefollowing:
–ForWindows7:OpentheRescueandRecoveryprogram.See“Accessingaprogramonyour
computer”onpage39.Formoreinformationaboutbackingupyourdata,refertothehelpsystem
oftheprogram.
–ForWindows10:Right-clicktheStartbuttontoopentheStartcontextmenu,andthenclickControl
Panel.ViewControlPanelusingLargeiconsorSmallicons,andthenclickFileHistory.Followthe
instructionsonthescreen.
•Createarecoverymediumasearlyaspossible.Youcanusetherecoverymediumtorecoveryour
operatingsystemevenifWindowsfailstostartup.
Tocreatearecoverymedium,dooneofthefollowing:
–ForWindows7:OpentheCreateRecoveryMediaprogram.See“Accessingaprogramonyour
computer”onpage39.Formoreinformationaboutcreatingarecoverymedium,refertothehelp
systemoftheprogram.
–ForWindows10:Right-clicktheStartbuttontoopentheStartcontextmenu,andthenclickControl
Panel.ViewControlPanelusingLargeiconsorSmallicons,andthenclickRecovery.Followthe
instructionsonthescreen.
•ForWindows7,createarescuemediumasearlyaspossible.Youcanusetherescuemediumto
recoverfromfailuresthatpreventyoufromgainingaccesstotheRescueandRecoveryworkspace
onyourstoragedrive.
Tocreatearescuemedium,opentheRescueandRecoveryprogram.See“Accessingaprogramonyour
computer”onpage39.Formoreinformationaboutcreatingarescuemedium,refertothehelpsystem
oftheprogram.
Keepingyourcomputercurrent
Inmostcases,itisagoodpracticetohavethemostup-to-dateoperatingsystemupdatepatches,software
programs,anddevicedrivers.Thissectionprovidesinformationabouthowtogetthelatestupdatesforyour
computer.
Gettingthelatestdevicedrivers
Attention:Reinstallingdevicedriverswillchangethecurrentconfigurationofyourcomputer.
Togetthelatestdevicedriversforyourcomputer,dooneofthefollowing:
•Downloadthedevicedriversthatarepreinstalledonyourcomputer.Gotohttp://www.lenovo.com/drivers.
56ThinkCentreM900zHardwareMaintenanceManual
•UsetheLenovoprogramorWindowsUpdate.See“Gettingthelatestsystemupdates”onpage57.
Note:ThedevicedriversprovidedbyWindowsUpdatemightnotbetestedbyLenovo.Itisrecommended
thatyougetdevicedriversfromLenovo.
Gettingthelatestsystemupdates
Togetthelatestsystemupdatesforyourcomputer,ensurethatyourcomputerisconnectedtotheInternet
anddooneofthefollowing:
•UseoneofthefollowingLenovoprogramstogetthesystemupdates,suchasdevicedriverupdates,
softwareupdates,andBIOSupdates:
–ForWindows7:UsetheSystemUpdateprogram.
–ForWindows10:UsetheLenovoCompanionprogram.
ToopentheSystemUpdateorLenovoCompanionprogram,see“Accessingaprogramonyourcomputer”
onpage39.Formoreinformationaboutusingtheprogram,refertothehelpsystemoftheprogram.
•UseWindowsUpdatetogetthesystemupdates,suchassecurityfixes,newversionsofWindows
components,anddevicedriverupdates.
1.ClicktheStartbuttontoopentheStartmenu.
2.DependingonyourWindowsversion,dooneofthefollowing:
–ForWindows7:ClickControlPanel.ViewControlPanelusingLargeiconsorSmallicons,and
thenclickWindowsUpdate.
–ForWindows10:ClickSettings➙Update&security➙WindowsUpdate.
3.Followtheinstructionsonthescreen.
Movingyourcomputer
Beforemovingyourcomputer,takethefollowingprecautions:
1.Backupyourdataonthestoragedrive.See“Goodmaintenancepractices”onpage56.
2.Removeanymediafromthedrivesandturnoffallconnecteddevicesandthecomputer.Then,
disconnectallpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothe
computer.
3.Ifyousavedtheoriginalshippingcartonsandpackingmaterials,usethemtopacktheunits.Ifyouare
usingdifferentcartons,cushiontheunitstoavoiddamage.
Movingyourcomputertoanothercountryorregion
Whenyoumoveyourcomputertoanothercountryorregion,youmusttakelocalelectricalstandardsinto
consideration.Ifthelocalelectricaloutletstyleisdifferentfromthetypeyouarecurrentlyusing,contactthe
LenovoCustomerSupportCentertopurchaseeitheranelectricalplugadapteroranewpowercord.Fora
listofLenovoSupportphonenumbers,gotohttp://www.lenovo.com/support/phone.Ifyoucannotfindthe
supporttelephonenumberforyourcountryorregion,contactyourLenovoreseller.
Chapter4.Youandyourcomputer57
58ThinkCentreM900zHardwareMaintenanceManual
Chapter5.Security
Thischaptercontainsthefollowingtopics:
•“Lockingyourcomputer”onpage59
•“ViewingandchangingsecuritysettingsintheSetupUtilityprogram”onpage60
•“Preventingunauthorizedaccesstoyourcomputer”onpage60
•“Usingfingerprintauthentication”onpage61
•“Usingthecoverpresenceswitch”onpage65
•“Usingandunderstandingfirewalls”onpage61
•“Protectingdataagainstviruses”onpage61
•“ComputraceAgentsoftwareembeddedinfirmware”onpage62
•“TrustedPlatformModule(TPM)”onpage62
Lockingyourcomputer
Thissectionprovidesinformationaboutlockingyourcomputerwiththelockingdevicestokeepyour
computersafe.
©CopyrightLenovo201559
AttachingaKensington-stylecablelock
YoucanuseaKensington-stylecablelocktosecureyourcomputertoadesk,table,orothernon-permanent
fixture.Thecablelockconnectstothesecurity-lockslotattherearofyourcomputer.Dependingonthetype
selected,thecablelockcanbeoperatedwithakeyorcombination.Thecablelockalsolocksthebuttons
usedtoopenthecomputercover.Thisisthesametypeoflockusedwithmanynotebookcomputers.You
canordersuchacablelockdirectlyfromLenovobysearchingforKensingtonat:
http://www.lenovo.com/support
Figure13.Kensington-stylecablelock
ViewingandchangingsecuritysettingsintheSetupUtilityprogram
ToviewandchangesecuritysettingsintheSetupUtilityprogram,dothefollowing:
1.StarttheSetupUtilityprogram.See“StartingtheSetupUtilityprogram”onpage63.
2.SelectSecurity.
3.Followtheinstructionsontherightsideofthescreentoviewandchangesecuritysettings.Youcan
referto“UsingtheSetupUtilityprogram”onpage63togetbasicinformationaboutsomemajor
securitysettings.
4.ExittheSetupUtilityprogram.See“ExitingtheSetupUtilityprogram”onpage67.
Preventingunauthorizedaccesstoyourcomputer
YoucanuseBIOSpasswordsandWindowsaccountstopreventunauthorizedaccesstoyourcomputerand
data.
•TouseBIOSpasswords,see“UsingBIOSpasswords”onpage66.
•TouseWindowsaccounts,dothefollowing:
60ThinkCentreM900zHardwareMaintenanceManual
1.ClicktheStartbuttontoopentheStartmenu.
2.DependingonyourWindowsversion,dooneofthefollowing:
–ForWindows7:ClickControlPanel➙UserAccounts.
–ForWindows10:ClickSettings➙Accounts.
3.Followtheinstructionsonthescreen.
Usingfingerprintauthentication
Ifyourkeyboardhasafingerprintreader,youcanusefingerprintauthenticationtoreplacepasswordsfor
simpleandsecureuseraccess.Tousefingerprintauthentication,firstenrollyourfingerprintsandassociate
themwithyourpasswords(suchasthepower-onpassword,harddiskpassword,andWindowspassword).
Usethefingerprintreaderandthefingerprintprogramtocompletethisprocedure.
Tousefingerprintauthentication,dooneofthefollowing:
•ForWindows7:UsetheFingerprintManagerProorThinkVantageFingerprintSoftwareprogramprovided
byLenovo.Toopentheprogram,see“Accessingaprogramonyourcomputer”onpage39.Formore
informationaboutusingtheprogram,refertothehelpsystemoftheprogram.
•ForWindows10:UsethefingerprinttoolprovidedbyWindows.ClicktheStartbuttontoopentheStart
menu,andthenclickSettings➙Accounts➙Sign-inoptions.Followtheinstructionsonthescreen.
Tousethefingerprintreader,refertothedocumentationshippedwiththefingerprintkeyboardorlocatedon
theLenovoSupportWebsiteathttp://www.lenovo.com/support/keyboards.
Usingandunderstandingfirewalls
Afirewallcanbehardware,software,oracombinationofbothdependingonthelevelofsecurityrequired.
Firewallsworkonasetofrulestodeterminewhichinboundandoutboundconnectionsareauthorized.If
yourcomputerispreinstalledwithafirewallprogram,ithelpsprotectagainstcomputerInternetsecurity
threats,unauthorizedaccess,intrusions,andInternetattacks.Italsoprotectsyourprivacy.Formore
informationabouthowtousethefirewallprogram,refertothehelpsystemofyourfirewallprogram.
TouseWindowsFirewall,dothefollowing
1.DependingonyourWindowsversion,dooneofthefollowing:
•ForWindows7:ClicktheStartbuttontoopentheStartmenu.
•ForWindows10:Right-clicktheStartbuttontoopentheStartcontextmenu.
2.ClickControlPanel.ViewControlPanelusingLargeiconsorSmallicons,andthenclickWindows
Firewall.
3.Followtheinstructionsonthescreen.
Protectingdataagainstviruses
Yourcomputerispreinstalledwithanantivirusprogramtohelpyouguardagainst,detect,andeliminate
viruses.
Lenovoprovidesafullversionofantivirussoftwareonyourcomputerwithafree30-daysubscription.After
30days,youmustrenewthelicensetocontinuereceivingtheantivirussoftwareupdates.
Note:Virusdefinitionfilesmustbekeptup-to-datetoguardagainstnewviruses.
Chapter5.Security61
Formoreinformationabouthowtouseyourantivirussoftware,refertothehelpsystemofyourantivirus
software.
ComputraceAgentsoftwareembeddedinfirmware
TheComputraceAgentsoftwareisanITassetmanagementandcomputertheftrecoverysolution.The
softwaredetectsifchangeshavebeenmadeonthecomputer,suchashardware,software,orthecomputer
call-inlocation.YoumighthavetopurchaseasubscriptiontoactivatetheComputraceAgentsoftware.
TrustedPlatformModule(TPM)
TPMisasecurecryptoprocessorthatcanstorecryptographickeysthatprotectinformationstoredinyour
computer.
62ThinkCentreM900zHardwareMaintenanceManual
Chapter6.Advancedconfiguration
Thischaptercontainsthefollowingtopics:
•“UsingtheSetupUtilityprogram”onpage63
•“UpdatingtheBIOS”onpage68
UsingtheSetupUtilityprogram
TheSetupUtilityprogramisusedtoviewandchangetheconfigurationsettingsofyourcomputer.This
sectionprovidesinformationaboutonlythemajorconfigurationsettingsavailableintheprogram.
Note:TheoperatingsystemsettingsmightoverrideanysimilarsettingsintheSetupUtilityprogram.
StartingtheSetupUtilityprogram
TostarttheSetupUtilityprogram,dothefollowing:
1.Turnonorrestartyourcomputer.
2.BeforeWindowsstartsup,repeatedlypressandreleasetheF1keyuntiltheSetupUtilityprogram
opens.IfaBIOSpasswordhasbeenset,theSetupUtilityprogramwillnotopenuntilyouenterthe
correctpassword.Formoreinformation,see“UsingBIOSpasswords”onpage66.
Note:Forsomekeyboards,youmightneedtopressFn+F1toopentheSetupUtilityprogram.
Toviewandchangetheconfigurationsettings,followtheinstructionsontherightsideofthescreen.The
keysusedtoperformvarioustasksaredisplayedatthebottomofthescreen.
Enablingordisablingadevice
Thissectionprovidesinformationabouthowtoenableordisableuseraccesstohardwaredevices(such
asUSBconnectorsorstoragedrives).
Toenableordisableadevice,dothefollowing:
1.StarttheSetupUtilityprogram.See“StartingtheSetupUtilityprogram”onpage63.
2.SelectDevices.
3.SelectthedeviceyouwanttoenableordisableandpressEnter.
4.SelectthedesiredsettingandpressEnter.
5.ExittheSetupUtilityprogram.See“ExitingtheSetupUtilityprogram”onpage67.
EnablingordisablingtheAutomaticPowerOnfeatures
IfyouenabletheAutomaticPowerOnfeatures,yourcomputerwillstartupautomatically.
ToenableordisabletheAutomaticPowerOnfeatures,dothefollowing:
1.StarttheSetupUtilityprogram.See“StartingtheSetupUtilityprogram”onpage63.
2.SelectPower➙AutomaticPowerOnandpressEnter.
3.SelectthefeatureyouwanttoenableordisableandpressEnter.
4.SelectthedesiredsettingandpressEnter.
5.ExittheSetupUtilityprogram.See“ExitingtheSetupUtilityprogram”onpage67.
©CopyrightLenovo201563
EnablingordisablingErPLPScompliancemode
Lenovocomputersmeettheeco-designrequirementsoftheErPLot3regulation.Formoreinformation,go
to:
http://www.lenovo.com/ecodeclaration
YoucanenableErPLPScompliancemodeintheSetupUtilityprogramtoreducetheconsumptionof
electricitywhenyourcomputerisofforinsleepmode.
ToenableordisableErPLPScompliancemode,dothefollowing:
1.StarttheSetupUtilityprogram.See“StartingtheSetupUtilityprogram”onpage63.
2.SelectPower➙EnhancedPowerSavingModeandpressEnter.
3.DependingonwhetheryouselectEnabledorDisabled,dooneofthefollowing:
•IfyouselectEnabled,pressEnter.Then,disabletheWakeonLANfeature.See“Enablingor
disablingtheAutomaticPowerOnfeatures”onpage63.
•IfyouselectDisabled,pressEnter.Then,gotothenextstep.
4.ExittheSetupUtilityprogram.See“ExitingtheSetupUtilityprogram”onpage67.
WhenErPLPScompliancemodeisenabled,youcanwakeupyourcomputerbydoingoneofthefollowing:
•Pressthepowerbutton.
•EnabletheWakeUponAlarmfeaturetomakeyourcomputerwakeupatasettime.See“Enablingor
disablingtheAutomaticPowerOnfeatures”onpage63.
•EnabletheAfterPowerLossfeaturetomakeyourcomputerwakeupwhenthepowersupplyresumes
afterasuddenlossofelectricity.
1.StarttheSetupUtilityprogram.See“StartingtheSetupUtilityprogram”onpage63.
2.SelectPower➙AfterPowerLossandpressEnter.
3.SelectPowerOnandpressEnter.
4.ExittheSetupUtilityprogram.See“ExitingtheSetupUtilityprogram”onpage67.
ChangingICEPerformanceMode
YoucanadjusttheacousticandthermalperformanceofyourcomputerthroughtheICEPerformance
Modemenu.Twochoicesareavailable:
•BetterAcousticPerformance(defaultsetting)
•BetterThermalPerformance
ByenablingBetterAcousticPerformance,yourcomputerwillrunwithlessnoiseatanormalthermal
level.ByenablingBetterThermalPerformance,yourcomputerwillrunatabetterthermallevelwith
normalacousticperformance.
Toswitchbetweenbetteracousticperformanceandbetterthermalperformance,dothefollowing:
1.StarttheSetupUtilityprogram.See“StartingtheSetupUtilityprogram”onpage63.
2.SelectPower➙IntelligentCoolingEngine(ICE)andpressEnter.
3.SelectICEPerformanceModeandpressEnter.
4.SelectBetterAcousticPerformanceorBetterThermalPerformanceasdesiredandpressEnter.
5.ExittheSetupUtilityprogram.See“ExitingtheSetupUtilityprogram”onpage67.
64ThinkCentreM900zHardwareMaintenanceManual
EnablingordisablingtheICEThermalAlertfeature
IfyouenabletheICEthermalalertfeature,whencriticalthermalsituationsoccur,suchasmalfunctioning
fans,abnormallyhightemperature,orpoorcoolingperformances,analertlogwillbewrittenintothe
Windowssystemlog.Thealertlogcanhelpyouidentifythethermalproblems.
ToenableordisabletheICEThermalAlertfeature,dothefollowing:
1.StarttheSetupUtilityprogram.See“StartingtheSetupUtilityprogram”onpage63.
2.SelectPower➙IntelligentCoolingEngine(ICE)andpressEnter.
3.SelectICEThermalAlertandpressEnter.
4.SelectthedesiredsettingandpressEnter.
5.ExittheSetupUtilityprogram.See“ExitingtheSetupUtilityprogram”onpage67.
EnablingordisablingtheConfigurationChangeDetectionfeature
IfyouenabletheConfigurationChangeDetectionfeature,whenthePOSTdetectstheconfigurationchanges
ofsomehardwaredevices(suchasstoragedrivesormemorymodules),anerrormessagewillbedisplayed
whenyouturnonthecomputer.
ToenableordisabletheConfigurationChangeDetectionfeature,dothefollowing:
1.StarttheSetupUtilityprogram.See“StartingtheSetupUtilityprogram”onpage63.
2.SelectSecurity➙ConfigurationChangeDetectionandpressEnter.
3.SelectthedesiredsettingandpressEnter.
4.ExittheSetupUtilityprogram.See“ExitingtheSetupUtilityprogram”onpage67.
Tobypasstheerrormessageandlogintotheoperatingsystem,dooneofthefollowing:
•PresstheF2key.
Note:Forsomekeyboards,youmightneedtopressFn+F2tobypasstheerrormessage.
•StartandthenexittheSetupUtilityprogram.See“StartingtheSetupUtilityprogram”onpage63and
“ExitingtheSetupUtilityprogram”onpage67.
Usingthecoverpresenceswitch
Thecoverpresenceswitchpreventsyourcomputerfromloggingintotheoperatingsystemwhenthe
computercoverisnotproperlyinstalledorclosed.
Toenablethecover-presence-switchconnectoronthesystemboard,dothefollowing:
1.StarttheSetupUtilityprogram.See“StartingtheSetupUtilityprogram”onpage63.
2.SelectSecurity➙ChassisIntrusionDetectionandpressEnter.
3.SelectEnabledandpressEnter.
4.ExittheSetupUtilityprogram.See“ExitingtheSetupUtilityprogram”onpage67.
Whenthecover-presence-switchconnectoronthesystemboardisenabled,ifthecoverpresenceswitch
detectsthatthecomputercoverisnotcorrectlyinstalledorclosed,anerrormessagewillbedisplayedwhen
youturnonthecomputer.Tobypasstheerrormessageandlogintotheoperatingsystem,dothefollowing:
1.Properlyinstallorcloseyourcomputercover.SeeChapter9“Installingorreplacinghardware”on
page87.
2.StartandthenexittheSetupUtilityprogram.See“StartingtheSetupUtilityprogram”onpage63and
“ExitingtheSetupUtilityprogram”onpage67.
Chapter6.Advancedconfiguration65
UsingBIOSpasswords
ByusingtheSetupUtilityprogram,youcansetpasswordstopreventunauthorizedaccesstoyourcomputer
anddata.
Youdonothavetosetanypasswordstouseyourcomputer.However,usingpasswordsimprovescomputer
security.Ifyoudecidetosetanypasswords,readthefollowingtopics.
SetupUtilityprogrampasswordtypes
Thefollowingtypesofpasswordsareavailable:
•Power-onpassword
Whenapower-onpasswordisset,youarepromptedtoenteravalidpasswordeachtimethecomputeris
turnedon.Thecomputercannotbeuseduntilthevalidpasswordisentered.
•Administratorpassword
Settinganadministratorpassworddetersunauthorizedusersfromchangingconfigurationsettings.Ifyou
areresponsibleformaintainingtheconfigurationsettingsofseveralcomputers,youmightwanttoset
anadministratorpassword.
Whenanadministratorpasswordisset,youarepromptedtoenteravalidpasswordeachtimeyou
trytoaccesstheSetupUtilityprogram.TheSetupUtilityprogramcannotbeaccesseduntilavalid
passwordisentered.
Ifboththepower-onpasswordandadministratorpasswordareset,youcanentereitherpassword.
However,youmustuseyouradministratorpasswordtochangeanyconfigurationsettings.
•Harddiskpassword
Settingaharddiskpasswordpreventsunauthorizedaccesstothedataonthestoragedrive.Whena
harddiskpasswordisset,youarepromptedtoenteravalidpasswordeachtimeyoutrytoaccess
thestoragedrive.
Notes:
–Afteryousetaharddiskpassword,yourdataonthestoragedriveisprotectedevenifthestoragedrive
isremovedfromonecomputerandinstalledinanother.
–Iftheharddiskpasswordisforgotten,thereisnowaytoresetthepasswordorrecoverdatafrom
thestoragedrive.
Passwordconsiderations
Apasswordcanbeanycombinationofupto64alphabeticandnumericcharacters.Forsecurityreasons,it
isrecommendedtouseastrongpasswordthatcannotbeeasilycompromised.
Note:TheSetupUtilityprogrampasswordsarenotcasesensitive.
Tosetastrongpassword,considerthefollowingguidelines:
•Haveatleasteightcharactersinlength
•Containatleastonealphabeticcharacterandonenumericcharacter
•Notbeyournameoryourusername
•Notbeacommonwordoracommonname
•Besignificantlydifferentfromyourpreviouspasswords
Setting,changing,anddeletingapassword
Toset,change,ordeleteapassword,dothefollowing:
1.StarttheSetupUtilityprogram.See“StartingtheSetupUtilityprogram”onpage63.
2.SelectSecurity.
66ThinkCentreM900zHardwareMaintenanceManual
3.Dependingonthepasswordtype,selectSetPower-OnPassword,SetAdministratorPassword,or
HardDiskPasswordandpressEnter.
4.Followtheinstructionsontherightsideofthescreentoset,change,ordeleteapassword.
Note:Apasswordcanbeanycombinationofupto64alphabeticandnumericcharacters.Formore
information,see“Passwordconsiderations”onpage66.
5.ExittheSetupUtilityprogram.See“ExitingtheSetupUtilityprogram”onpage67.
Selectingastartupdevice
Ifyourcomputerdoesnotstartupfromadeviceasexpected,youcanchoosetochangethestartupdevice
sequencepermanentlyorselectatemporarystartupdevice.
Changingthestartupdevicesequencepermanently
Tochangethestartupdevicesequencepermanently,dothefollowing:
1.Dependingonthetypeofthestoragedevice,dooneofthefollowing:
•Ifthestoragedeviceisinternal,gotostep2.
•Ifthestoragedeviceisadisc,ensurethatyourcomputerisonorturnonthecomputer.Then,
insertthediscintotheopticaldrive.
•Ifthestoragedeviceisanexternaldeviceotherthanadisc,connectthestoragedevicetothe
computer.
2.StarttheSetupUtilityprogram.See“StartingtheSetupUtilityprogram”onpage63.
3.SelectStartup.
4.Followtheinstructionsontherightsideofthescreentochangethestartupdevicesequence.
5.ExittheSetupUtilityprogram.See“ExitingtheSetupUtilityprogram”onpage67.
Selectingatemporarystartupdevice
Note:Notalldiscsandstoragedrivesarebootable.
Toselectatemporarystartupdevice,dothefollowing:
1.Dependingonthetypeofthestoragedevice,dooneofthefollowing:
•Ifthestoragedeviceisinternal,gotostep2.
•Ifthestoragedeviceisadisc,ensurethatyourcomputerisonorturnonthecomputer.Then,
insertthediscintotheopticaldrive.
•Ifthestoragedeviceisanexternaldeviceotherthanadisc,connectthestoragedevicetothe
computer.
2.Turnonorrestartthecomputer.BeforeWindowsstartsup,repeatedlypressandreleasetheF12key
untilStartupDeviceMenuisdisplayed.
Note:Forsomekeyboards,youmightneedtopressFn+F12todisplayStartupDeviceMenu.
3.SelectthedesiredstoragedeviceandpressEnter.Thecomputerwillstartupfromthedeviceyouselect.
Ifyouwanttoselectapermanentstartupdevice,selectEnterSetuponStartupDeviceMenuandpress
EntertostarttheSetupUtilityprogram.Formoreinformationabouthowtoselectapermanentstartup
device,see“Changingthestartupdevicesequencepermanently”onpage67.
ExitingtheSetupUtilityprogram
ToexittheSetupUtilityprogram,dooneofthefollowing:
Chapter6.Advancedconfiguration67
•Ifyouwanttosavethenewsettings,presstheF10key.Then,selectYesinthewindowdisplayed
andpressEnter.
Note:Forsomekeyboards,youmightneedtopressFn+F10toexittheSetupUtilityprogram.
•Ifyoudonotwanttosavethenewsettings,selectExit➙DiscardChangesandExitandpressEnter.
Then,selectYesinthewindowdisplayedandpressEnter.
UpdatingtheBIOS
Whenyouinstallanewprogram,hardwaredevice,ordevicedriver,youmightbeinformedtoupdate
theBIOS.YoucanupdatetheBIOSfromyouroperatingsystemoraflashupdatedisc(supportedonly
onsomemodels).
ToupdatetheBIOS,dothefollowing:
1.Gotohttp://www.lenovo.com/drivers.
2.DownloadtheflashBIOSupdatedriverfortheoperatingsystemversionortheISOimageversion(used
tocreateaflashupdatedisc).Then,downloadtheinstallationinstructionsfortheflashBIOSupdate
driveryoudownload.
3.PrinttheinstallationinstructionsyoudownloadandfollowtheinstructionstoupdatetheBIOS.
Note:IfyouwanttoupdatetheBIOSfromaflashupdatedisc,theinstallationinstructionsmightnotprovide
theinformationabouthowtorecordtheupdatedisc.See“Recordingadisc”onpage48.
68ThinkCentreM900zHardwareMaintenanceManual
Chapter7.Troubleshooting,diagnostics,andrecovery
Thischapterprovidessolutionstoresolveyourcomputerproblems.Followthestepsinthebasicprocedure
forresolvingcomputerproblems,whichhelpsyoumakegooduseofthetroubleshooting,diagnostics,
andrecoveryinformation.
•“Basicprocedureforresolvingcomputerproblems”onpage69
•“Troubleshooting”onpage69
•“Diagnostics”onpage78
•“Recoveryinformation”onpage79
Basicprocedureforresolvingcomputerproblems
Itisrecommendedthatyouusethefollowingproceduretoresolvecomputerproblemsyouareexperiencing:
1.Ensurethat:
a.Thecablesforallconnecteddevicesareconnectedcorrectlyandsecurely.
b.Allconnecteddevicesthatrequireacpowerareconnectedtoproperlygrounded,functioning
electricaloutlets.
c.AllconnecteddevicesareenabledintheBIOSsettingsofyourcomputer.See“Enablingordisabling
adevice”onpage63.
Iftheseactionsdonotresolveyourproblem,continuewiththenextstep.
2.Useanantivirusprogramtoseeifyourcomputerhasbeeninfectedbyavirus.Iftheprogramdetects
avirus,removethevirus.Iftheantivirusprogramdoesnotresolveyourproblem,continuewiththe
nextstep.
3.Goto“Troubleshooting”onpage69andfollowtheinstructionsforthetypeofproblemyouare
experiencing.Ifthesetroubleshootinginstructionsdonotresolveyourproblem,continuewiththe
nextstep.
4.Runthediagnosticprogram.See“Diagnostics”onpage78.Ifthediagnosticprogramdoesnotresolve
yourproblem,continuewiththenextstep.
5.Recoveryouroperatingsystem.See“Recoveryinformation”onpage79.
6.Ifnoneoftheseactionssolveyourproblem,contacttheLenovoCustomerSupportCenter.Foralistof
LenovoSupportphonenumbers,gotohttp://www.lenovo.com/support/phone.Formoreinformation
abouthelp,service,andtechnicalassistance,seeChapter10“Gettinginformation,help,andservice”
onpage117.
Troubleshooting
Attention:DonotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingtheChapter
1“Readthisfirst:Importantsafetyinformation”onpage1.
Usethetroubleshootinginformationtofindsolutionstoproblemsthathavedefinitesymptoms.
Startupproblems
Thissectionprovidessolutionstostartup-relatedproblems.
Thecomputerdoesnotstartupwhenyoupressthepowerbutton
Solutions:Ensurethat:
•Thepowercordiscorrectlyconnectedtotherearofthecomputerandtoaworkingelectricaloutlet.
©CopyrightLenovo201569
•Ifyourcomputerhasasecondarypowerswitchontherearofthecomputer,ensurethatitisswitchedon.
•Thepowerindicatoronthefrontofthecomputerison.
•Thecomputervoltagematchesthevoltageavailableattheelectricaloutletforyourcountryorregion.
Theoperatingsystemfailstostartup
Solution:Ensurethatthestartupsequenceincludesthedevicewheretheoperatingsystemresides.Usually,
theoperatingsystemisonthestoragedrive.Formoreinformation,see“Changingthestartupdevice
sequencepermanently”onpage67.
Thecomputerbeepsmultipletimesbeforetheoperatingsystemstartsup
Solution:Ensurethatnokeysarestuck.
Audioproblems
Thissectionprovidessolutionstoaudio-relatedproblems.
NoaudioinWindows
Solutions:
•IfyouareusingpoweredexternalspeakersthathaveanOn/Offcontrol,ensurethat:
–TheOn/OffcontrolissettotheOnposition.
–Thespeakerpowercableisconnectedtoaproperlygrounded,functionalacelectricaloutlet.
•Ifyourexternalspeakershaveavolumecontrol,ensurethatthevolumeisnotsettoolow.
•ClickthevolumeiconintheWindowsnotificationareaonthetaskbar.Ensurethatthemutespeakers
settingsarenotselectedandnoneofthevolumesettingsissettoolow.
Note:IfthevolumeiconisnotdisplayedintheWindowsnotificationarea,addtheicontothenotification
area.See“AddinganicontotheWindowsnotificationarea”onpage46.
•Somemodelshaveafrontaudiopanelyoucanusetoadjustvolume.Ifyouhaveafrontaudiopanel,
ensurethatthevolumeisnotsettoolow.
•Ensurethatyourexternalspeakers(andheadphones,ifused)areconnectedtothecorrectaudio
connectoronthecomputer.Mostspeakercablesarecolor-codedtomatchtheconnector.
Note:Whenexternal-speakerorheadphonecablesareconnectedtotheaudioconnector,theinternal
speaker,ifpresent,isdisabled.Inmostcases,ifanaudioadapterisinstalledinoneoftheexpansion
slots,theaudiofunctionbuiltintothesystemboardisdisabled.Therefore,youmustusetheaudio
connectorsontheaudioadapter.
•EnsurethattheprogramyouarerunningisdesignedforuseintheMicrosoftWindowsoperatingsystem.
IftheprogramisdesignedtoruninDOS,theprogramdoesnotusetheWindowssoundfeature.The
programmustbeconfiguredtouseSoundBlasterProorSoundBlasteremulation.
•Ensurethattheaudiodevicedriversarecorrectlyinstalled.
Soundcomesonlyfromoneexternalspeaker
Solutions:
•Ensurethatthespeakercableisinsertedcompletelyintotheconnectoronthecomputer.
•Ensurethatthecablethatconnectstheleftspeakertotherightspeakerissecurelyconnected.
•ClickthevolumeiconintheWindowsnotificationareaonthetaskbar.Then,clickthespeakericonontop
ofthevolumecontrol.ClicktheLevelstabandensurethattheBalancesettingsaresetcorrectly.
70ThinkCentreM900zHardwareMaintenanceManual
Note:IfthevolumeiconisnotdisplayedintheWindowsnotificationarea,addtheicontothenotification
area.See“AddinganicontotheWindowsnotificationarea”onpage46.
CDproblems
ThissectionprovidessolutionstoCD-relatedproblems.
ACDorDVDdoesnotwork
Solutions:
•IfyouhavemultipleCDorDVDdrivesinstalled(oracombinationofCDandDVDdrives),tryinsertingthe
discintotheotherdrive.Insomecases,onlyoneofthedrivesisconnectedtotheaudiosubsystem.
•Ensurethatthediscisinsertedcorrectly,withitslabelup.
•Ensurethatthediscyouareusingisclean.Toremovedustorfingerprints,wipethedisccleanwithasoft
clothfromthecentertotheoutside.Wipingadiscinacircularmotionmightcauselossofdata.
•Ensurethatthediscyouareusingisnotscratchedordamaged.Tryinsertinganotherdiscthatyou
knowisgood.Ifyoucannotreadfromaknown-gooddisc,youmighthaveaproblemwithyouroptical
driveorthecablingtoyouropticaldrive.Ensurethatthepowercableandsignalcablearesecurely
connectedtothedrive.
Unabletouseabootablerecoverymedium,suchastheProductRecoveryCD,to
startyourcomputer
Solution:EnsurethattheCDorDVDdriveisinthestartupsequencebeforethestoragedrive.Referto
“Selectingatemporarystartupdevice”onpage67forinformationonviewingandchangingthestartup
sequence.Notethatonsomemodelsthestartupsequenceispermanentlysetandcannotbechanged.
DVDproblems
ThissectionprovidessolutionstoDVD-relatedproblems.
BlackscreeninsteadofDVDvideo
Solutions:
•RestarttheDVDplayerprogram.
•Tryalowerscreenresolutionorcolordepth.
•Closeanyopenfiles,andthenrestartthecomputer.
DVDmoviedoesnotplay
Solutions:
•Ensurethatthediscsurfaceiscleanandnotscratched.
•Checkthediscorpackageforregionalcoding.Youmightneedtopurchaseadiscwithcodingfor
theregionwhereyouareusingyourcomputer.
NoaudioorintermittentaudiowhileplayingaDVDmovie
Solutions:
•Checkthevolumecontrolsettingsonyourcomputerandonyourspeakers.
•Ensurethatthediscsurfaceiscleanandnotscratched.
•Checkallcableconnectionstoandfromthespeakers.
•UsetheDVDmenuforthevideotoselectadifferentaudiotrack.
Chapter7.Troubleshooting,diagnostics,andrecovery71
Playbackissloworchoppy
Solutions:
•Disableanybackgroundprograms,suchasAntiVirusorDesktopThemes.
•Ensurethatvideoresolutionissettolessthan1152x864pixels.
Invaliddiscornodiscfoundmessage
Solutions:
•EnsurethataDVDdiscisinthedrivewiththeshinysideofthediscfacingdown.
•Ensurethatvideoresolutionissettolessthan1152x864pixels.
•OncomputersthathaveaCD-ROMorCD-RWdriveinadditiontoaDVD-ROMdrive,ensurethatthe
DVDdiscisinthedrivelabeled“DVD”.
Intermittentproblems
Someproblemsoccuronlyoccasionallyandaredifficulttorepeat.
Solutions:
•Ensurethatallcablesandcordsaresecurelyconnectedtothecomputerandconnecteddevices.
•Ensurethatwhenthecomputerison,thefangrillisnotblocked(thereisairflowaroundthegrill),andthe
fansareworking.Ifairflowisblockedorthefansarenotworking,thecomputermightoverheat.
•IfSmallComputerSystemInterface(SCSI)devicesareinstalled,ensurethatthelastexternaldevicein
eachSCSIchainisterminatedcorrectly.Formoreinformation,seeyourSCSIdocumentation.
Storagedriveproblems
Selectyoursymptomfromthefollowinglist:
•“SomeorallstoragedrivesmissingfromtheSetupUtilityprogram”onpage72
•“"NoOperatingSystemFound"messageorthesystemnotstartingupfromthecorrectstoragedrive”
onpage72
SomeorallstoragedrivesmissingfromtheSetupUtilityprogram
Symptom:SomeorallstoragedrivesmissingfromtheSetupUtilityprogram
Solutions:
•Ensurethatallstoragedrivesignalcablesandpowercablesareconnectedcorrectly.
•Ensurethatyourcomputerisconfiguredcorrectlytosupportthestoragedrives.
–IfyourcomputerisinstalledwithfiveSATAstoragedrives,ensurethattheSATAstoragedrive
enablementmodule(onetofivestoragedrives)isinstalled.
–IfyourcomputerisinstalledwithSASstoragedrives,ensurethattheSASstoragedriveenablement
module(onetofivestoragedrives)ortheLSIMegaRAIDSASadapterisinstalled.
"NoOperatingSystemFound"messageorthesystemnotstartingupfromthe
correctstoragedrive
Symptom:"NoOperatingSystemFound"messageorthesystemnotstartingupfromthecorrectstorage
drive
Solutions:
•Ensurethatallstoragedrivesignalcablesandpowercablesareconnectedcorrectly.
72ThinkCentreM900zHardwareMaintenanceManual
•EnsurethatthestoragedriveyourcomputerstartsupfromislistedasthefirststartupdeviceintheSetup
Utilityprogram.Referto“Changingthestartupdevicesequencepermanently”onpage67.
Note:Inrarecases,thestoragedrivewiththeoperatingsystemmightgetcorruptedordamaged.Insuch
cases,youmightneedtoreplacethestoragedrive.RefertoChapter9“Installingorreplacinghardware”
onpage87.
Screenproblems
Thissectionprovidessolutionstoscreen-relatedproblems.
Myscreengoesblankwhilethecomputerison
Solutions:
•Thecomputervoltagematchesthevoltageavailableattheelectricaloutletforyourcountryorregion.
•Pressakeytoexitthescreensaver.
•Pressthepowerbuttontoresumethecomputerfromsleeporhibernationmode.
•Thebrightnessandcontrastissetcorrectly.
•IfthescreengoesblankwhenIstartsomeapplicationprograms,installthedevicedriversforthe
applicationprograms.Refertothedocumentationfortheaffectedapplicationprogramtocheckwhether
anydevicedriversarerequired.
Theimageappearstobeflickering
Solutions:
•Thescreenmightbeaffectedbyinterferencefromnearbyequipment.Magneticfieldsaroundother
devices,suchastransformers,appliances,fluorescentlights,andothermonitorsmightbecausingthe
problem.Movefluorescentdesklightingoranyequipmentthatproducesmagneticfieldsfartheraway
fromthescreen.Ifthisdoesnotcorrecttheproblem,turnoffthecomputer.Then,adjusttheplacementof
thecomputerandotherdevicessothattheyareatleast305mm(12inches)apart.Turnonthecomputer.
•Resettherefreshratesupportedbyyourcomputer.
1.Right-clickablankareaonthedesktop.
2.DependingonyourWindowsversion,dooneofthefollowing:
–ForWindows7:ClickScreenresolution➙Advancedsettings.
–ForWindows10:ClickDisplaysettings.OntheDisplaytab,clickAdvanceddisplaysettings➙
Displayadapterproperties.
3.ClicktheMonitortab,andthenresettherefreshratetobethehighestandnoninterlaced.
Theimageisdiscolored
Solution:Thescreenmightbeaffectedbyinterferencefromnearbyequipment.Movefluorescentdesk
lightingoranyequipmentthatproducesmagneticfieldsfurtherawayfromthescreen.Iftheproblem
persists,dothefollowing:
1.Turnoffthecomputer.
2.Adjusttheplacementofthecomputerandotherdevicessothattheyareatleast305mm(12inches)
apart.
3.Turnonthecomputer.
Networkingproblems
Thissectionprovidessolutionstonetworking-relatedproblems.
Chapter7.Troubleshooting,diagnostics,andrecovery73
EthernetLANproblems
MycomputercannotbeconnectedtoanEthernetLAN
Solutions:
•ConnectthecablefromtheEthernetconnectortotheRJ45connectorofthehub.
•EnabletheEthernetLANfeatureintheSetupUtilityprogram.See“StartingtheSetupUtilityprogram”on
page63.Then,followtheinstructionsonthescreen.
•EnabletheEthernetLANadapter.
1.DependingonyourWindowsversion,dooneofthefollowing:
–ForWindows7:ClicktheStartbuttontoopentheStartmenu.
–ForWindows10:Right-clicktheStartbuttontoopentheStartcontextmenu.
2.ClickControlPanel.ViewControlPanelusingLargeiconsorSmallicons,andthenclickNetwork
andSharingCenter➙Changeadaptersettings.
3.Right-clicktheEthernetLANadaptericonandclickEnable.
•UpdateorreinstalltheEthernetLANdriver.See“Keepingyourcomputercurrent”onpage56.
•Installallnetworkingsoftwarethatisnecessaryforyournetworkenvironment.CheckwithyourLAN
administratorforthenecessarynetworkingsoftware.
•Setthesameduplexfortheswitchportandtheadapter.Ifyouconfiguredtheadapterforfullduplex,
ensurethattheswitchportisalsoconfiguredforfullduplex.Settingthewrongduplexmodemight
degradeperformance,causedataloss,orresultinlostconnections.
MycomputerisaGigabitEthernetmodelandIuseaspeedof1000Mbps,buttheconnectionfails
orerrorsoccur
Solution:ConnectthenetworkcabletotheEthernetconnectorusingCategory5wiringanda100BASE-T
hub/switch(not100BASE-X).
MycomputerisaGigabitEthernetmodel,butitcannotbeconnectedtothenetworkat1000Mbps,
butatonly100Mbps
Solutions:
•Tryanothercable.
•Setthelinkpartnertoauto-negotiate.
•Settheswitchtobe802.3ab-compliant(gigabitovercopper).
TheWakeOnLANfeaturedoesnotwork
Solution:EnabletheWakeOnLAN(WOL)featureintheSetupUtilityprogram.See“StartingtheSetupUtility
program”onpage63.Then,followtheinstructionsonthescreen.
WirelessLANproblem
Note:ThewirelessLANfeatureissupportedonlyonsomemodels.
ThewirelessLANfeaturedoesnotwork
Solutions:
•EnablethewirelessLANfeatureintheSetupUtilityprogram.See“StartingtheSetupUtilityprogram”on
page63.Then,followtheinstructionsonthescreen.
•ForWindows10,enablethewirelessLANfeatureinWindowsSettings.ClicktheStartbuttontoopenthe
Startmenu,andthenclickSettings➙Network&Internet➙Wi-Fi.TurnontheWi-Fifeature.
•EnablethewirelessLANadapter.
74ThinkCentreM900zHardwareMaintenanceManual
1.DependingonyourWindowsversion,dooneofthefollowing:
–ForWindows7:ClicktheStartbuttontoopentheStartmenu.
–ForWindows10:Right-clicktheStartbuttontoopentheStartcontextmenu.
2.ClickControlPanel.ViewControlPanelusingLargeiconsorSmallicons,andthenclickNetwork
andSharingCenter➙Changeadaptersettings.
3.Right-clickthewirelessLANadaptericonandclickEnable.
•UpdateorreinstallthewirelessLANdriver.See“Keepingyourcomputercurrent”onpage56.
Bluetoothproblems
Note:TheBluetoothfeatureissupportedonlyonsomemodels.
TheBluetoothfeaturedoesnotwork
Solutions:
•EnabletheBluetoothfeatureintheSetupUtilityprogram.See“StartingtheSetupUtilityprogram”on
page63.Then,followtheinstructionsonthescreen.
•TurnontheBluetoothradios.
1.DependingonyourWindowsversion,dooneofthefollowing:
–ForWindows7:ClicktheStartbuttontoopentheStartmenu.Right-clickComputer,andthen
clickProperties.
–ForWindows10:Right-clicktheStartbuttontoopentheStartcontextmenu.
2.ClickDeviceManager.Typetheadministratorpasswordorprovideconfirmationifprompted.
3.Right-clicktheBluetoothradiosunderBluetoothRadiosandclickEnable.
•EnabletheBluetoothadapter.
1.DependingonyourWindowsversion,dooneofthefollowing:
–ForWindows7:ClicktheStartbuttontoopentheStartmenu.
–ForWindows10:Right-clicktheStartbuttontoopentheStartcontextmenu.
2.ClickControlPanel.ViewControlPanelusingLargeiconsorSmallicons,andthenclickNetwork
andSharingCenter➙Changeadaptersettings.
3.Right-clicktheBluetoothadaptericonandclickEnable.
•UpdateorreinstalltheBluetoothdriver.See“Keepingyourcomputercurrent”onpage56.
SounddoesnotcomefromtheBluetoothheadsetorheadphones
Solution:SettheBluetoothheadsetorheadphonesasthedefaultdevice.
1.Exittheapplicationthatusesthesounddevice(forexample,WindowsMediaPlayer).
2.Right-clickthevolumeiconintheWindowsnotificationareaonthetaskbar.
Note:IfthevolumeiconisnotdisplayedintheWindowsnotificationarea,addtheicontothe
notificationarea.See“AddinganicontotheWindowsnotificationarea”onpage46.
3.ClickPlaybackdevices.
4.IfyouareusingtheHeadsetprofile,selectBluetoothHands-freeAudio,andthenclickSetDefault.If
youareusingtheAVprofile,selectStereoAudio,andthenclickSetDefault.
5.ClickOK.
Performanceproblems
Thissectionprovidessolutionstoperformance-relatedproblemsofyourcomputer.
Chapter7.Troubleshooting,diagnostics,andrecovery75
Excessivenumberoffragmentedfiles
Solution:UsetheWindowsdiskdefragmentationordiskoptimizationfeaturetocleanupthefiles.
Note:Dependingonthevolumeofthestoragedrivesandamountofdatastoredonthestoragedrives,the
disk-defragmentationprocessmighttakeuptoseveralhours.
1.Closeanyopenprogramsandwindows.
2.ClicktheStartbuttontoopentheStartmenu.
3.DependingonyourWindowsversion,dooneofthefollowing:
•ForWindows7:ClickComputer.
•ForWindows10:ClickFileExplorer➙ThisPC.
4.Right-clickyourCdriveandthenclickProperties.
5.ClicktheToolstab.
6.DependingonyourWindowsversion,dooneofthefollowing:
•ForWindows7:ClickDefragmentnow.
•ForWindows10:ClickOptimize.Selectthedesireddrive,andthenclickOptimize.
7.Followtheinstructionsonthescreen.
Insufficientfreestoragedrivespace
Solutions:Freeupstoragedrivespace.
•CleanoutyourInbox,SentItems,andDeletedItemsfoldersfromyoure-mailapplication.
•CleanupyourCdrive.
1.ClicktheStartbuttontoopentheStartmenu.
2.DependingonyourWindowsversion,dooneofthefollowing:
–ForWindows7:ClickComputer.
–ForWindows10:ClickFileExplorer➙ThisPC.
3.Right-clickyourCdriveandthenclickProperties.
4.Checktheamountoffreespace,andthenclickDiskCleanup.
5.Alistofunnecessaryfilecategoriesisdisplayed.Selecteachfilecategoryyouwanttodelete,
andthenclickOK.
•TurnsomeWindowsfeaturesofforremovesomeunnecessaryprograms.
1.DependingonyourWindowsversion,dooneofthefollowing:
–ForWindows7:ClicktheStartbuttontoopentheStartmenu.
–ForWindows10:Right-clicktheStartbuttontoopentheStartcontextmenu.
2.ClickControlPanel.ViewControlPanelusingLargeiconsorSmallicons,andthenclickPrograms
andFeatures.
3.Dooneofthefollowing:
–ToturnsomeWindowsfeaturesoff,clickTurnWindowsfeaturesonoroff.Followthe
instructionsonthescreen.
–Toremovesomeunnecessaryprograms,selecttheprogramyouwanttoremove,andthenclick
Uninstall/ChangeorUninstall.
Insufficientfreememoryspace
Solutions:
76ThinkCentreM900zHardwareMaintenanceManual
•Right-clickablankareaonthetaskbarandopenTaskManager.Then,endsometasksyouarenot
performing.
•Installadditionalmemorymodules.SeeChapter9“Installingorreplacinghardware”onpage87.To
purchasememorymodules,goto
http://www.lenovo.com.
Serialconnectorcannotbeaccessed
Solutions:
•Connecttheserialcabletotheserialconnectoronthecomputerandtotheserialdevice.Iftheserial
devicehasitsownpowercord,connectthepowercordtoagroundedelectricaloutlet.
•Turnontheserialdeviceandkeepthedeviceonline.
•Installanyapplicationprogramssuppliedwiththeserialdevice.Refertothedocumentationthatcomes
withtheserialdeviceformoreinformation.
•Ifyouaddedoneserial-connectoradapter,installtheadaptercorrectly.
USBdeviceproblems
ThissectionprovidessolutionstoUSBdevice-relatedproblems.
MyUSBdevicecannotbeaccessed
Solutions:
•ConnecttheUSBcablefromtheUSBconnectortotheUSBdevice.IftheUSBdevicehasitsownpower
cord,connectthepowercordtoagroundedelectricaloutlet.
•TurnontheUSBdeviceandkeepthedeviceonline.
•InstallanydevicedriversorapplicationprogramssuppliedwiththeUSBdevice.Refertothe
documentationthatcomeswiththeUSBdeviceformoreinformation.
•DetachandreconnecttheUSBconnectortoresettheUSBdevice.
IcannotinstalltheWindows7operatingsystemusinganexternalUSBdevice
Solution:Gotohttp://www.lenovo.com/supporttodownloadandinstallUSBdrivers.
Softwareanddriverproblems
Thissectionprovidessolutionstosoftware-anddriver-relatedproblems.
Forsomeprograms,datescannotbesortedincorrectorder
Solution:Someprogramsdevelopedbeforetheyear2000useonlythelasttwodigitsofayeartosortdates,
assumingthefirsttwodigitsare19.Consequently,datescannotbesortedincorrectordernowadays.
Checkwithyoursoftwaremanufacturertoseeifanyupdatesareavailable.Manysoftwaremanufacturers
makeupdatesavailablefromtheWorldWideWeb.
Someapplicationprogramsdonotworkasexpected
Solutions:
1.Checkwhethertheproblemiscausedbyanapplicationprogram.
a.Ensurethatthesoftwareiscompatiblewithyourcomputer.Refertotheinformationsuppliedwith
thesoftwareformoreinformation.
b.Verifythatothersoftwareworkscorrectlyonyourcomputer.
c.Verifythatthesoftwareyouareusingworksonanothercomputer.
Chapter7.Troubleshooting,diagnostics,andrecovery77
2.Iftheproblemiscausedbyanapplicationprogram:
•Refertotheprinteddocumentationthatcomeswiththeprogramorthehelpsystemoftheprogram.
•Updatetheprogram.See“Keepingyourcomputercurrent”onpage56.
•Uninstalltheprogramandthenreinstallit.Todownloadaprogramthatispreinstalledonyour
computer,gotohttp://www.lenovo.com/supportandfollowtheinstructionsonthescreen.
Adevicedoesnotworknormallyduetodevicedriverproblems
Solution:Updatethedevicedriver.See“Keepingyourcomputercurrent”onpage56.
Diagnostics
Note:IfyouareusingaWindowsoperatingsystemotherthanWindows7orWindows10,goto
http://www.lenovo.com/diagsforthediagnosticsinformationforyourcomputer.
Thediagnosticprogramisusedtotesthardwarecomponentsofyourcomputer.Thediagnosticprogramalso
canreportoperating-system-controlledsettingsthatinterferewiththecorrectoperationofyourcomputer.
LenovoSolutionCenter
TheLenovoSolutionCenterprogramisthediagnosticprogrampreinstalledonyourcomputer.Theprogram
enablesyoutotroubleshootandresolvecomputerproblems.Itcombinesdiagnostictests,system
informationcollection,securitystatus,andsupportinformation,alongwithhintsandtipsformaximum
systemperformance.
ToopentheLenovoSolutionCenterprogram,see“Accessingaprogramonyourcomputer”onpage39.For
moreinformationaboutusingtheprogram,refertothehelpsystemoftheprogram.
IfyouareunabletoisolateandrepairtheproblemyourselfafterrunningLenovoSolutionCenter,save
andprintthelogfilescreatedbytheprogram.YoumightneedthelogfileswhenyouspeaktoaLenovo
technicalsupportrepresentative.
UEFIdiagnosticprogram
TheUEFIdiagnosticprogramenablesyoutotesthardwaredevices(suchasmemorymodulesorstorage
drives)andprovidesthefollowingtools:
•Systeminformation
•Recoverbadsectorstool
•Generateconfigurationfile
•Executefromconfigurationfile
TousetheUEFIdiagnosticprogram,dothefollowing:
1.Turnonorrestartyourcomputer.
2.BeforeWindowsstarts,repeatedlypressandreleasetheF10keyuntiltheUEFIdiagnosticprogram
opens.
Note:IfaBIOSpasswordhasbeenset,theSetupUtilityprogramwillnotopenuntilyouenterthe
correctpassword.Formoreinformation,see“UsingBIOSpasswords”onpage66.
3.Followtheinstructionsonthescreentousethediagnosticprogram.
78ThinkCentreM900zHardwareMaintenanceManual
Recoveryinformation
Thissectionprovidesinstructionsabouthowtorecoveryouroperatingsystem.
Note:Ifadevicedoesnotworknormallyafterrecoveringtheoperatingsystem,updatethedevicedriver.
See“Keepingyourcomputercurrent”onpage56.
RecoveryinformationforWindows7
TorecoveryourWindows7operatingsystem,usethefollowingsolutions:
•UseWindowsrecoverysolutions.
–UseSystemRestoretorestoresystemfilesandsettingstoanearlierpoint.
1.ClicktheStartbuttontoopentheStartmenu.
2.ClickControlPanel.ViewControlPanelusingLargeiconsorSmallicons,andthenclick
Recovery➙OpenSystemRestore.
3.Followtheinstructionsonthescreen.
–UsetheWindowsrecoveryenvironmentbydoingoneofthefollowing:
–Afterseveralconsecutivefailedbootattempts,theWindowsrecoveryenvironmentmightstart
automatically.Followtheinstructionsonthescreentochoosetheappropriaterecoverysolution.
–Turnonorrestartyourcomputer.Then,repeatedlypressandreleasetheF8keyuntiltheAdvanced
BootOptionswindowopens.SelectRepairYourComputer,pressEnter,andfollowtheinstructions
onthescreentochoosetheappropriaterecoverysolution.
Note:Forsomekeyboards,youmightneedtopressFn+F8toopentheAdvancedBootOptions
window.
•UsetheRescueandRecoveryprogramtorestorethestoragedrivefromabackup,orrestoretheC
drivetothefactory-defaultsettings.
Notes:
–Dependingonyourcomputermodel,theRescueandRecoveryprogrammightnotbeavailableunless
youinstalleditmanuallyearlier.
–IfyouusetheRescueandRecoveryprogramtorestorethestoragedrivefromabackup,ensurethat
youbackedupyourdataearlierwiththeprogram.
TousetheRescueandRecoveryprogram,dooneofthefollowing:
–OpentheRescueandRecoveryprogram.See“Accessingaprogramonyourcomputer”onpage39.
Formoreinformationaboutusingtheprogram,refertothehelpsystemoftheprogram.
–OpentheRescueandRecoveryworkspace.
1.Turnoffyourcomputer.PressandholdtheEnterkeyandthenturnonthecomputer.Release
theEnterkeywhenStartupInterruptMenuisdisplayed.Then,pressF11toopentheRescue
andRecoveryworkspace.
2.IftheRescueandRecoveryworkspacefailstoopen,usetherescuemediumyoucreatedearlierto
resolvetheproblem.Selecttherescuemediumasthestartupdevice.See“Selectingatemporary
startupdevice”onpage67.Whentherescuemediumstarts,theRescueandRecoveryworkspace
opens.Followtheinstructionsonthescreen.
•UsetherecoverymediumyoucreatedearlierwiththeCreateRecoveryMediaprogramtorestoreonly
theCdriveortheentirestoragedrivetothefactory-defaultsettings.
Note:Tocreatearecoverymedium,see“Goodmaintenancepractices”onpage56.
Chapter7.Troubleshooting,diagnostics,andrecovery79
1.Selecttherecoverymediumasthestartupdevice.See“Selectingatemporarystartupdevice”
onpage67.
2.Followtheinstructionsonthescreentochoosetheappropriaterecoverysolution.
•UsetherecoverydiscsetprovidedbyLenovotorestoretheentirestoragedrivetothefactory-default
settings.
–Ifyourcomputercomeswiththerecoverydiscset,followtheinstructionsshippedwiththediscset.
–Ifyourcomputerdoesnotcomewiththerecoverydiscset,contacttheLenovoCustomerSupport
Centertoorderarecoverydiscset.See“Callingforservice”onpage118.
RecoveryinformationforWindows10
TorecoveryourWindows10operatingsystem,usethefollowingsolutions:
•UseWindowsrecoverysolutions.
–UserecoverysolutionsinWindowsSettings.
1.ClicktheStartbuttontoopentheStartmenu.
2.ClickSettings➙Update&security➙Recovery.
3.Choosetheappropriaterecoverysolutionbyfollowingtheinstructionsonthescreen.
–UseSystemRestoretorestoresystemfilesandsettingstoanearlierpoint.
1.Right-clicktheStartbuttontoopentheStartcontextmenu.
2.ClickControlPanel.ViewControlPanelusingLargeiconsorSmallicons,andthenclick
Recovery➙OpenSystemRestore.
3.Followtheinstructionsonthescreen.
–UsetheFileHistorytooltorestoreyourfilesfromabackup.
Note:IfyouusetheFileHistorytooltorestoreyourfilesfromabackup,ensurethatyoubackedup
yourdataearlierwiththetool.
1.Right-clicktheStartbuttontoopentheStartcontextmenu.
2.ClickControlPanel.ViewControlPanelusingLargeiconsorSmallicons,andthenclickFile
History➙Restorepersonalfiles.
3.Followtheinstructionsonthescreen.
–UsetheWindowsrecoveryenvironmentbydoingoneofthefollowing:
–Afterseveralconsecutivefailedbootattempts,theWindowsrecoveryenvironmentmightstart
automatically.Followtheinstructionsonthescreentochoosetheappropriaterecoverysolution.
–SelecttherecoverymediumyoucreatedearlierwiththeWindowstoolasthestartupdevice.See
“Selectingatemporarystartupdevice”onpage67.Then,followtheinstructionsonthescreen
tochoosetheappropriaterecoverysolution.
Note:Tocreatearecoverymedium,see“Goodmaintenancepractices”onpage56.
•UsetherecoveryUSBkeyprovidedbyLenovotorestoretheentirestoragedrivetothefactory-default
settings.
–IfyourcomputercomeswiththerecoveryUSBkey,followtheinstructionsshippedwiththeUSBkey.
–IfyourcomputerdoesnotcomewiththerecoveryUSBkey,contacttheLenovoCustomerSupport
CentertoorderarecoveryUSBkey.See“Callingforservice”onpage118.
80ThinkCentreM900zHardwareMaintenanceManual
Chapter8.Servicecheckoutandsymptom-to-FRUindex
Thischapterprovidesinformationaboutgeneralservicecheckoutandsymptom-to-FRUindex.
Servicecheckout
Attention:Thedrivesinthecomputeryouareservicingmighthavebeenrearrangedorthedrivestartup
sequencechanged.Beextremelycarefulduringwriteoperationssuchascopying,saving,orformatting.
Dataorprogramscanbeoverwrittenifyouselectanincorrectdrive.
Generalerrormessagesappearifaproblemorconflictisfoundbyanapplicationprogram,theoperating
system,orboth.Foranexplanationofthesemessages,refertotheinformationsuppliedwiththatsoftware
package.
BeforereplacinganyFRUs,ensurethatthelatestlevelofBIOSisinstalledonthesystem.Adown-levelBIOS
mightcausefalseerrorsandunnecessaryreplacementofthesystemboard.
Usethefollowingproceduretohelpdeterminethecauseoftheproblem:
1.Power-offthecomputerandallexternaldevices.
2.Checkallcablesandpowercords.
3.Setalldisplaycontrolstothemiddleposition.
4.Power-onallexternaldevices.
5.Power-onthecomputer.
•Lookfordisplayederrorcodes
•Listenforbeepcodes
•Lookforreadableinstructionsoramainmenuonthedisplay.
Ifyoudidnotreceivethecorrectresponse,gotostep6.
Ifyoudoreceivethecorrectresponse,gotostep7.
6.Lookatthefollowingconditionsandfollowtheinstructions:
•IfyouhearbeepcodesduringPOST,goto“Beepsymptoms”onpage83.
•IfthecomputerdisplaysaPOSTerror,goto“POSTerrorcodes”onpage83.
•Ifthecomputerhangsandnoerrorisdisplayed,gotostep7.
7.RuntheDiagnosticprograms.See“Diagnostics”onpage78.
•Ifyoureceiveanerror,replacethepartthatthediagnosticprogramcallsout.
•Iftheteststopsandyoucannotcontinue,replacethelastdevicetested.
Problemdeterminationtips
Duetothevarietyofhardwareandsoftwarecombinationsthatcanbeencountered,usethefollowing
informationtoassistyouinproblemdetermination.Ifpossible,havethisinformationavailablewhen
requestingassistancefromServiceSupportandEngineeringfunctions.
•Machinetypeandmodel
•Processororharddiskdriveupgrades
•Failuresymptom
–Dodiagnosticsindicateafailure?
–What,when,where,single,ormultiplesystems?
©CopyrightLenovo201581
–Isthefailurerepeatable?
–Hasthisconfigurationeverworked?
–Ifithasbeenworking,whatchangesweremadepriortoitfailing?
–Isthistheoriginalreportedfailure?
•Diagnosticsversion
–Typeandversionlevel
•Hardwareconfiguration
–Print(printscreen)configurationcurrentlyinuse
–BIOSlevel
•Operatingsystemsoftware
–Typeandversionlevel
Notes:Toeliminateconfusion,identicalsystemsareconsideredidenticalonlyifthey:
1.Aretheexactmachinetypeandmodels
2.HavethesameBIOSlevel
3.Havethesameadapters/attachmentsinthesamelocations
4.Havethesameaddressjumpers/terminators/cabling
5.Havethesamesoftwareversionsandlevels
6.HavethesameDiagnosticDiskettes(version)
7.Havethesameconfigurationoptionssetinthesystem
8.Havethesamesetupfortheoperatingsystemcontrolfiles
Comparingtheconfigurationandsoftwareset-upbetween“workingandnon-working”systemswilloften
leadtoproblemresolution.
Symptom-to-FRUindex
TheSymptom-to-FRUindexlistserrorsymptomsandpossiblecauses.Themostlikelycauseislistedfirst.
Alwaysbeginwith“Servicecheckout”onpage81.Thisindexcanalsobeusedtohelpyoudecidewhich
FRUstohaveavailablewhenservicingacomputer.Ifyouareunabletocorrecttheproblemusingthis
index,goto“Undeterminedproblems”onpage86.
Notes:
•TheSymptom-to-FRUindexisnotspecifictoanymachinetypeandareapplicabletoallLenovocomputers.
•Ifyouhavebothanerrormessageandanincorrectaudioresponse,diagnosetheerrormessagefirst.
•Ifyoucannotrunthediagnostictestsorgetadiagnosticerrorcodewhenrunningatest,firstdiagnosethePOST
errormessageyoureceive.
•Ifyoudidnotreceiveanyerrormessage,lookforadescriptionofyourerrorsymptomsinthefirstpartofthisindex.
Harddiskdrivebooterror
Aharddiskdrivebooterrorcanhavethefollowingcauses.
ErrorFRU/Action
Thestart-updriveisnotinthebootsequencein
configuration.
Checktheconfigurationandensurethestart-updriveis
inthebootsequence.
Nooperatingsysteminstalledonthebootdrive.Installanoperatingsystemonthebootdrive.
82ThinkCentreM900zHardwareMaintenanceManual
ErrorFRU/Action
Thebootsectoronthestartupdriveiscorrupted.Thedrivemustbeformatted.Dothefollowing:
1.Attempttobackupthedataonthefailingharddisk
drive.
2.Usingtheoperatingsystemprograms,formatthe
harddiskdrive.
Thedriveisdefective.Replacetheharddiskdrive.
Powersupplyproblems
Ifyoususpectapowerproblem,usethefollowingprocedures.
Check/VerifyFRU/Action
Checkthefollowingforproperinstallation.
•Powercord
•On/Offswitchconnector
•On/Offswitchpowersupplyconnector
•Systemboardpowersupplyconnectors
•Microprocessor(s)connection
Reseatconnectors
Checkthepowercordforcontinuity.Powercord
Checkthepower-onswitchforcontinuity.Power-onswitch
Beepsymptoms
Beepsymptomsaretonesoraseriesoftonesseparatedbypauses(intervalswithoutsound)duringPOST.
Thefollowingtabledescribesthebeepsymptoms.
BeepsymptomFRU/Action
2shortbeepsCMOSsettingerrorCommonerrorcode,seethedetailfailureinformationin
“POSTerrorcodes”onpage83.
3shortand1longbeepsDRAMmemoryerrorPerformthefollowingactionsinorder.
1.Makesurethememorymodule(s)areproperlyseated
intheconnector(s).
2.Replacethememorymodule(s).
3.Replacethesystemboard.
POSTerrorcodes
Eachtimeyoupower-onthesystem,itperformsaseriesofteststhatchecktheoperationofthesystem
andsomeoptions.ThisseriesoftestsiscalledthePower-OnSelf-Test,orPOST.POSTdoesthefollowing
operations.
•Checkssomebasicsystem-boardoperations
•Checksthememoryoperation
•Startsthevideooperation
•Verifiesthatthebootdriveisworking
Chapter8.Servicecheckoutandsymptom-to-FRUindex83
IfthePOSTdetectsaproblem,anerrormessageappearsonthescreen.Asingleproblemcancauseseveral
errormessagestoappear.Whenyoucorrectthecauseofthefirsterrormessage,theothererrormessages
probablywillnotbedisplayednexttimeyouturnonthesystem.
ErrorcodePOSTerrormessageDescription/Action
0135FanfailureThesystemmightbeoverheating.
PressF10toexit.
Note:Iftheproblemiscausedbythe
microprocessorfan,pressF10will
notsolvetheproblem.
0211KeyboardnotfoundWhenthereisnokeyboarddetected,
theerrormessagewillbedisplayed.
0164MemorysizedecreasedPressF10toexit.
1762ConfigurationchangehasoccurredThiserrormessageisdisplayedwhen
aharddiskdriveoropticaldrive
changehasbeenmade.
PressF10toexit.
1820Morethanoneexternalfingerprint
readerareattached.Poweroffand
removeallbutthereaderthatyouset
upwithinyourmainoperatingsystem.
Ifmorethanoneexternalfingerprint
readerareconnectedtoacomputer,
thiserrormessagewillbedisplayed.
Removeallofthefingerprint
keyboardsexcepttheonecompatible
withthefingerprintapplicationon
yourcomputer.
1962Nooperatingsystemfound.Press
anykeytorepeatbootsequence.
ThiserroroccursonlyafterthePOST
iscompleted.
Pressanykeytorepeatboot
sequence.
Miscellaneouserrorconditions
Message/SymptomFRU/Action
ChangingdisplaycolorsDisplay/Monitor
Computerwillnotpower-off.See“Harddiskdriveboot
error”onpage82.
1.PowerSwitch
2.SystemBoard
3.Risercard,ifinstalled.
ComputerwillnotRPLfromserver1.Ensurethatnetworkisinstartupsequenceasfirst
deviceorfirstdeviceafterdiskette.
2.EnsurethatnetworkadapterisenabledforRPL.
3.Networkadapter(Advisenetworkadministratorof
newMACaddress)
84ThinkCentreM900zHardwareMaintenanceManual
Message/SymptomFRU/Action
ComputerwillnotperformaWakeOnLAN®(ifapplicable)1.Checkpowersupplyandsignalcableconnections
tonetworkadapter.
2.Ensurethattheoperatingsystemsettingsaresetto
enableWakeonLAN.
3.EnsureWakeOnLANfeatureisenabledin
Setup/Configuration(see“StartingtheSetupUtility
program”onpage63)
4.EnsurenetworkadministratorisusingcorrectMAC
address.
5.EnsurenointerruptorI/Oaddressconflicts.
6.Networkadapter(advisenetworkadministratorof
newMACaddress)
Deadcomputer.See“Harddiskdrivebooterror”onpage
82.
1.PowerSupply
2.SystemBoard
Diskettedrivein-uselightremainsonordoesnotlight
whendriveisactive.
1.DisketteDrive
2.SystemBoard
3.DisketteDriveCable
Blankscreenexceptforflashingcursor.1.SystemBoard
2.PrimaryHardDiskDrive
3.HardDiskDriveCable
IncorrectmemorysizeduringPOST1.RuntheMemorytests.
2.MemoryModule
3.SystemBoard
"InsertaDiskette"iconappearswithaknown-good
diagnosticsdisketteinthefirst3.5-inchdiskettedrive.
1.SystemBoard
2.DisketteDriveCable
3.NetworkAdapter
Intensityorcolorvariesfromlefttorightofcharacters
andcolorbars
1.Display
2.Videoadapter(ifpresent)
3.SystemBoard
Nopowerorfannotrunning1.See“Harddiskdrivebooterror”onpage82.
Non-systemdiskordiskerror-typemessagewitha
known-gooddiagnosticdiskette.
1.DisketteDrive
2.SystemBoard
3.DisketteDriveCable
Otherdisplaysymptomsnotlistedabove(includingblank
orillegibledisplay)
1.Display
2.SystemBoard
Power-onindicatororharddiskdrivein-uselightnoton,
butcomputerworkscorrectly
1.Powerswitch/LEDassembly
2.SystemBoard
Printerproblems1.Printer
2.SystemBoard
Chapter8.Servicecheckoutandsymptom-to-FRUindex85
Message/SymptomFRU/Action
Programloadsfromtheharddiskwithaknown-good
diagnosticsdisketteinthefirst3.5-inchdiskettedrive
1.RuntheSetupUtilityprogramandcheckStartup
sequence.
2.DisketteDrive
3.DisketteDriveCable
4.SystemBoard
5.PowerSupply
RPLcomputercannotaccessprogramsfromitsownhard
disk.
1.IfnetworkadministratorisusingLCCMHybridRPL,
checkstartupsequence:
a.Firstdevice-network
b.Seconddevice-harddisk
2.Harddiskdrive
RPLcomputerdoesnotRPLfromserver1.Checkstartupsequence.
2.CheckthenetworkadapterLEDstatus.
Serialorparallelconnectordevicefailure(systemboard
connector)
1.ExternalDeviceSelf-TestOK?
2.ExternalDevice
3.Cable
4.SystemBoard
Serialorparallelconnectordevicefailure(adapter
connector)
1.ExternalDeviceSelf-TestOK?
2.ExternalDevice
3.Cable
4.AlternateAdapter
5.SystemBoard
Someorallkeysonthekeyboarddonotwork1.Keyboard
2.KeyboardCable
3.SystemBoard
Undeterminedproblems
Thissectionprovidesinstructionsonhowtofindoutthefailingdevicesoradapters.
1.Power-offthecomputer.
2.Removeordisconnectthefollowingcomponents(ifinstalled)oneatatime.
a.Externaldevices(modem,printer,ormouse)
b.Anyadapters
c.Memorymodules
d.Extendedvideomemory
e.ExternalCache
f.ExternalCacheRAM
g.Harddiskdrive
h.Diskettedrive
3.Power-onthecomputertore-testthesystem.
4.Repeatsteps1through3untilyoufindthefailingdeviceoradapter.
Ifalldevicesandadaptershavebeenremoved,andtheproblemcontinues,replacethesystemboard.
See“Replacingthesystemboard”onpage112.
86ThinkCentreM900zHardwareMaintenanceManual
Chapter9.Installingorreplacinghardware
Thischaptercontainsthefollowingtopics:
•“Handlingstatic-sensitivedevices”onpage87
•“Installingorreplacinghardware”onpage87
Handlingstatic-sensitivedevices
Donotopenthestatic-protectivepackagecontainingthenewpartuntilthedefectiveparthasbeenremoved
andyouarereadytoinstallthenewpart.Staticelectricity,althoughharmlesstoyou,canseriouslydamage
computercomponentsandparts.
Whenyouhandlepartsandothercomputercomponents,taketheseprecautionstoavoidstatic-electricity
damage:
•Limityourmovement.Movementcancausestaticelectricitytobuilduparoundyou.
•Alwayshandlepartsandothercomputercomponentscarefully.HandlePCI/PCI-Expresscards,memory
modules,systemboards,andmicroprocessorsbytheedges.Nevertouchanyexposedcircuitry.
•Preventothersfromtouchingthepartsandothercomputercomponents.
•Touchthestatic-protectivepackagecontainingtheparttoametalexpansion-slotcoverorother
unpaintedmetalsurfaceonthecomputerforatleasttwoseconds.Thisreducesstaticelectricityfrom
thepackageandyourbodybeforeyouinstallorreplaceanewpart.
•Whenpossible,removethenewpartfromthestatic-protectivepackage,andinstallitdirectlyinthe
computerwithoutsettingthepartdown.Whenthisisnotpossible,placethestatic-protectivepackage
thatthepartcameinonasmooth,levelsurfaceandplacethepartonthepackage.
•Donotplacethepartonthecomputercoverorothermetalsurface.
Installingorreplacinghardware
Thissectionprovidesinstructionsonhowtoinstallorreplacehardwareforyourcomputer.Youcanexpand
thecapabilitiesofyourcomputerandmaintainyourcomputerbyinstallingorreplacinghardware.
Attention:DonotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingtheChapter
1“Readthisfirst:Importantsafetyinformation”onpage1.
Notes:
•Dependingonyourcomputermodel,someofthehardwarepartsinthissectionmightnotbeavailable.
•UsecomputerpartsprovidedonlybyLenovo.
•Wheninstallingorreplacinganoption,usetheappropriateinstructionsinthissectionalongwiththe
instructionsthatcomewiththeoption.
•Inmostareasoftheworld,LenovorequiresthereturnofthedefectiveCRU.Informationaboutthiswill
comewiththeCRUorwillcomeafewdaysaftertheCRUarrives.
Installingexternaloptions
Youcanconnectexternaloptionstoyourcomputer,suchasexternalspeakers,aprinter,orascanner.For
someexternaloptions,youmustinstalladditionalsoftwareinadditiontomakingthephysicalconnection.
Wheninstallinganexternaloption,see“Hardwarelocations”onpage27toidentifytherequiredconnector.
©CopyrightLenovo201587
Usetheinstructionsshippedwiththeoptiontohelpyoumaketheconnectionandinstallanysoftware
ordevicedriversthatarerequiredfortheoption.
Replacingthecomputerstand
Attention:DonotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingtheChapter
1“Readthisfirst:Importantsafetyinformation”onpage1.
Toreplacethecomputerstand,refertothefollowingtopics:
•“Replacingthetilt-onlymonitorstand”onpage88
•“ReplacingtheUltraFlexIIStand”onpage89
Replacingthetilt-onlymonitorstand
Toreplacethetilt-onlymonitorstand,dothefollowing:
1.Removeanymediafromthedrivesandturnoffallconnecteddevicesandthecomputer.Then,
disconnectallpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothe
computer.
2.Placeasoft,cleantowelorclothonthedeskorsurface.Holdthesidesofyourcomputerandgentlylay
itdownsothatthescreenisagainstthesurfaceandthecomputercoverisfacingup.
3.Presstheretaininglatch1onthetilt-onlymonitorstandasshowntodisengagethelatch.Then,remove
thetilt-onlymonitorstandfromthecomputercover.
Figure14.Removingthetilt-onlymonitorstandfromthecomputercover
4.Loosenthescrew1onthebase,andthenremovethetilt-onlymonitorstandfromthebaseasshown.
Figure15.Removingthetilt-onlymonitorstandfromthebase
88ThinkCentreM900zHardwareMaintenanceManual
5.Insertthescrew1onthebaseintothecorrespondingholeinthenewtilt-onlymonitorstand.Then,
tightenthescrewtosecurethemonitorstand.
Figure16.Installingthetilt-onlymonitorstandtothebase
6.Insertthetwohooks1onthenewtilt-onlymonitorstandintothecorrespondingholesinthecomputer
coverasshown.Then,pivotthetilt-onlymonitorstanddownwarduntilitsnapsintoposition.
Figure17.Installingthetilt-onlymonitorstandtothecomputercover
ReplacingtheUltraFlexIIStand
ToreplacetheUltraFlexIIStand,dothefollowing:
1.Removeanymediafromthedrivesandturnoffallconnecteddevicesandthecomputer.Then,
disconnectallpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothe
computer.
2.Placeasoft,cleantowelorclothonthedeskorsurface.Holdthesidesofyourcomputerandgentlylay
itdownsothatthescreenisagainstthesurfaceandthecomputercoverisfacingup.
Chapter9.Installingorreplacinghardware89
3.Presstheretaininglatch1ontheUltraFlexIIStandasshowntodisengagethelatch.Then,remove
theUltraFlexIIStandfromthecomputercover.
Figure18.RemovingtheUltraFlexIIStandfromthecomputercover
4.Insertthetwohooks1onthenewUltraFlexIIStandintothecorrespondingholesinthecomputercover
asshown.Then,pivottheUltraFlexIIStanddownwarduntilitsnapsintoposition.
Figure19.InstallingtheUltraFlexIIStandtothecomputercover
Removingthebackcover
Attention:DonotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingtheChapter
1“Readthisfirst:Importantsafetyinformation”onpage1.
CAUTION:
Beforeyouopenthebackcover,turnoffthecomputerandwaitseveralminutesuntilthecomputeris
cool.
Toremovethebackcover,dothefollowing:
1.Removeanymediafromthedrivesandturnoffallconnecteddevicesandthecomputer.Then,
disconnectallpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothe
computer.
2.Unlockanylockingdevicethatsecuresthebackcover.
90ThinkCentreM900zHardwareMaintenanceManual
3.Placeasoft,cleantowelorclothonthedeskorsurface.Holdthesidesofyourcomputerandgentlylay
itdownsothatthescreenisagainstthesurfaceandthecomputercoverisfacingup.
4.Removethecomputerstand.See“Replacingthecomputerstand”onpage88.
5.Slidethebackcoverasshowntoremoveitfromthechassis.
Figure20.Removingthebackcover
Replacingthememorymoduleshield
Attention:DonotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingtheChapter
1“Readthisfirst:Importantsafetyinformation”onpage1.
Toreplacethememorymoduleshield,dothefollowing:
1.Removeanymediafromthedrivesandturnoffallconnecteddevicesandthecomputer.Then,
disconnectallpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothe
computer.
2.Removethebackcover.See“Removingthebackcover”onpage90.
3.Locatethememorymoduleshield.See“Computercomponents”onpage31.
4.Pullthetab1onthememorymoduleshieldasshowntoremoveitfromthechassis.
Figure21.Removingthememorymoduleshield
Chapter9.Installingorreplacinghardware91
5.Insertthestraightedgeofthenewmemorymoduleshieldintotheholeasshown.Then,pivotit
downwarduntilitsnapsintoposition.
Figure22.Installingthememorymoduleshield
Whattodonext:
•Toworkwithanotherpieceofhardware,gototheappropriatesection.
•Tocompletetheinstallationorreplacement,goto“Completingthepartsreplacement”onpage116.
Replacingamemorymodule
Attention:DonotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingtheChapter
1“Readthisfirst:Importantsafetyinformation”onpage1.
Note:Ifyouhavetwomemorymodules,ensurethatyouinstallthememorymodulesfirstintothelower
memoryslotandthentheupperone.
Toreplaceamemorymodule,dothefollowing:
1.Removeanymediafromthedrivesandturnoffallconnecteddevicesandthecomputer.Then,
disconnectallpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothe
computer.
2.Removethebackcover.See“Removingthebackcover”onpage90.
3.Removethememorymoduleshieldtoexposethememorymodule.See“Replacingthememory
moduleshield”onpage91.
4.Opentheretainingclipsandgentlypullthememorymoduleoutofthememoryslot.
Figure23.Removingamemorymodule
92ThinkCentreM900zHardwareMaintenanceManual
5.Insertthenotchedend2ofthenewmemorymoduleintotheslot1.Pressthememorymodulefirmly
andpivotthememorymoduleuntilitsnapsintoposition.Ensurethatthememorymoduleissecured
intheslotanddoesnotmoveeasily.
Figure24.Installingamemorymodule
6.Installthememorymoduleshield.See“Replacingthememorymoduleshield”onpage91.
Whattodonext:
•Toworkwithanotherpieceofhardware,gototheappropriatesection.
•Tocompletetheinstallationorreplacement,goto“Completingthepartsreplacement”onpage116.
Replacingthestoragedrive
Attention:DonotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingtheChapter
1“Readthisfirst:Importantsafetyinformation”onpage1.
Toreplacethestoragedrive,dothefollowing:
1.Removeanymediafromthedrivesandturnoffallconnecteddevicesandthecomputer.Then,
disconnectallpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothe
computer.
2.Removethebackcover.See“Removingthebackcover”onpage90.
3.Locatethestoragedrive.See“Computercomponents”onpage31.
4.Pressthehandle1asshown,andthenpivotthestoragedrivebracketandthestoragedriveasshown
toremovethemfromthechassis.
Figure25.Removingthestoragedrivebracketandthestoragedrive
5.Disconnectthestoragedrivecablefromthestoragedrive.
Chapter9.Installingorreplacinghardware93
6.Flexthesidesofthestoragedrivebrackettoremovethestoragedrivefromthebracket.
Figure26.Removingthestoragedrivefromthebracket
7.Flexthesidesofthestoragedrivebracketandinsertthefourpins1onthebracketintothe
correspondingholesinthenewstoragedrive.
Figure27.Installingthestoragedriveintothebracket
8.Connectthestoragedrivecabletothestoragedrive.
94ThinkCentreM900zHardwareMaintenanceManual
9.Insertthetwotabs1onthestoragedrivebracketintothecorrespondingholesinthechassis.Then,
pivotthestoragedrivebracketdownwarduntilitsnapsintoposition.
Figure28.Installingthestoragedrivebracketandthestoragedrive
Whattodonext:
•Toworkwithanotherpieceofhardware,gototheappropriatesection.
•Tocompletetheinstallationorreplacement,goto“Completingthepartsreplacement”onpage116.
Replacingthecomputercover
Attention:DonotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingtheChapter
1“Readthisfirst:Importantsafetyinformation”onpage1.
Toreplacethecomputercover,dothefollowing:
1.Removeanymediafromthedrivesandturnoffallconnecteddevicesandthecomputer.Then,
disconnectallpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothe
computer.
2.Removethebackcover.See“Removingthebackcover”onpage90.
3.Locatethecomputercover.See“MajorFRUsandCRUs”onpage31.
Chapter9.Installingorreplacinghardware95
4.Loosenthescrew1thatsecurestheopticaldrive,andthenpushtheopticaldriveoutofthebay
withascrewdriver.
Figure29.Removingtheopticaldrive
Note:Ifyouarereplacingtheopticaldrive,removethetwoscrewsthatsecuretheopticaldriveholder,
andthenremovetheholderfromtheopticaldrive.Then,installthetwoscrewstosecuretheholderto
thenewopticaldrive.
5.Disconnectthecontrolbuttonboardcablefromthecontrolbuttonboard.
Figure30.Disconnectingthecontrolbuttonboardcable
96ThinkCentreM900zHardwareMaintenanceManual
6.Pivotthetwotabs1onthesideI/Ocoverupward,andthenremovethesideI/Ocoverfromthe
chassisasshown.
Figure31.RemovingthesideI/Ocover
7.Loosenthetwoscrews1thatsecurethecomputercover,andthenpressthecomputercover
downwardtodisengagethethreetabs2fromthechassis.Pivotthecomputercoverasshownto
removeitfromthechassis.
Figure32.Removingthecomputercover
Chapter9.Installingorreplacinghardware97
8.Removethetwoscrewsthatsecurethecontrolbuttonboard,andthenremovethecontrolbutton
boardfromthecomputercover.
Figure33.Removingthecontrolbuttonboard
9.Alignthetwoholesinthecontrolbuttonboardwiththecorrespondingscrewholesinthenewcomputer
cover.Then,installthetwoscrewstosecurethecontrolbuttonboard.
10.Positionthenewcomputercoveronthechassis,andthenpressthecomputercoverdownwarduntilthe
threetabssnapintoposition.Tightenthetwoscrewstosecurethecomputercover.
11.InstallthesideI/ObracketbyinsertingthetwotabsonthesideI/Obracketintothecorresponding
holesinthecomputercover.
12.Connectthecontrolbuttonboardcabletothecontrolbuttonboard.
13.Slidetheopticaldriveintotheopticaldrivebayuntilitsnapsintoposition,andthentightenthescrew
tosecuretheopticaldrive.
Whattodonext:
•Toworkwithanotherpieceofhardware,gototheappropriatesection.
•Tocompletetheinstallationorreplacement,goto“Completingthepartsreplacement”onpage116.
Replacingthesystemboardshield
Attention:DonotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingtheChapter
1“Readthisfirst:Importantsafetyinformation”onpage1.
Toreplacethesystemboardshield,dothefollowing:
1.Removeanymediafromthedrivesandturnoffallconnecteddevicesandthecomputer.Then,
disconnectallpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothe
computer.
2.Removethebackcover.See“Removingthebackcover”onpage90.
3.Removethecomputercover.See“Replacingthecomputercover”onpage95.
4.Removethememorymoduleshield.See“Replacingthememorymoduleshield”onpage91.
5.Locatethesystemboardshield.See“MajorFRUsandCRUs”onpage31.
98ThinkCentreM900zHardwareMaintenanceManual
6.RemovethetwoscrewsthatsecurethesideI/Obracket,andthenremovethesideI/Obracketfrom
thesystemboardshield.Then,removethefivescrewsthatsecurethesystemboardshield,andthen
removethesystemboardshieldfromthechassis.
Figure34.RemovingthesideI/Obracketandthesystemboardshield
7.Alignthefiveholesinthenewsystemboardshieldwiththecorrespondingscrewholesinthechassis,
andtheninstallthefivescrewstosecurethesystemboardshield.
8.AlignthetwoholesinthesideI/Obracketwiththecorrespondingscrewholesinthesystemboard
shield,andtheninstallthetwoscrewstosecurethesideI/Obracket.
9.Reinstallthememorymoduleshield.See“Replacingthememorymoduleshield”onpage91.
10.Reinstallthecomputercover.See“Replacingthecomputercover”onpage95.
Whattodonext:
•Toworkwithanotherpieceofhardware,gototheappropriatesection.
•Tocompletetheinstallationorreplacement,goto“Completingthepartsreplacement”onpage116.
ReplacingtheVESAmountbracket
Attention:DonotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingtheChapter
1“Readthisfirst:Importantsafetyinformation”onpage1.
ToreplacetheVESAmountbracket,dothefollowing:
1.Removeanymediafromthedrivesandturnoffallconnecteddevicesandthecomputer.Then,
disconnectallpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothe
computer.
2.Removethebackcover.See“Removingthebackcover”onpage90.
3.Removethecomputercover.See“Replacingthecomputercover”onpage95.
4.Removethesystemboardshield.See“Replacingthesystemboardshield”onpage98.
5.LocatetheVESAmountbracket.See“MajorFRUsandCRUs”onpage31.
Chapter9.Installingorreplacinghardware99
6.RemovethefourscrewsthatsecuretheVESAmountbracket,andthenlifttheVESAmountbracket
upwardtoremoveit.
Figure35.RemovingtheVESAmountbracket
7.Disconnectthecoverpresenceswitchcablefromthesystemboard.
8.SqueezethesidesofthecoverpresenceswitchinwardandpushitoutoftheVESAmountbracket.
Figure36.Removingthecoverpresenceswitch
9.RoutethecoverpresenceswitchcablethroughtheholeinthenewVESAmountbracket.Then,connect
thecabletothesystemboard.See“Partsonthesystemboard”onpage35.
10.InsertthecoverpresenceswitchintotheVESAmountbracketuntilitissecuredfirmly.
11.AlignthefourholesintheVESAmountbracketwiththecorrespondingscrewholesinthechassis.Then,
installthefourscrewstosecuretheVESAmountbracket.
12.Reinstallthesystemboardshield.See“Replacingthesystemboardshield”onpage98.
13.Reinstallthecomputercover.See“Replacingthecomputercover”onpage95.
Whattodonext:
•Toworkwithanotherpieceofhardware,gototheappropriatesection.
•Tocompletetheinstallationorreplacement,goto“Completingthepartsreplacement”onpage116.
100ThinkCentreM900zHardwareMaintenanceManual
Replacingthepowersupplyassembly
Attention:DonotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingtheChapter
1“Readthisfirst:Importantsafetyinformation”onpage1.
Althoughtherearenomovingpartsinyourcomputerafterthepowercordhasbeendisconnected,the
followingwarningsarerequiredforyoursafetyandproperUnderwritersLaboratories(UL)certification.
CAUTION:
Hazardousmovingparts.Keepfingersandotherbodypartsaway.
CAUTION:
Neverremovethecoveronapowersupplyoranypartthathasthefollowinglabelattached.
Hazardousvoltage,current,andenergylevelsarepresentinsideanycomponentthathasthislabel
attached.Therearenoserviceablepartsinsidethesecomponents.Ifyoususpectaproblemwith
oneoftheseparts,contactaservicetechnician.
Toreplacethepowersupplyassembly,dothefollowing:
1.Removeanymediafromthedrivesandturnoffallconnecteddevicesandthecomputer.Then,
disconnectallpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothe
computer.
2.Removethebackcover.See“Removingthebackcover”onpage90.
3.Removethecomputercover.See“Replacingthecomputercover”onpage95.
4.Removethesystemboardshield.See“Replacingthesystemboardshield”onpage98.
5.RemovetheVESAmountbracket.See“ReplacingtheVESAmountbracket”onpage99.
6.Locatethepowersupplyassembly.See“MajorFRUsandCRUs”onpage31.
7.Disconnectthepowersupplyassemblycablefromthesystemboard.
Chapter9.Installingorreplacinghardware101
8.Removethesevenscrewsthatsecurethepowersupplyassembly,andthenremovethepowersupply
assemblyfromthechassis.
Figure37.Removingthepowersupplyassembly
9.Alignthesevenholesinthenewpowersupplyassemblywiththecorrespondingscrewholesinthe
chassis.Then,installthesevenscrewstosecurethepowersupplyassembly.
10.Connectthepowersupplyassemblycabletothesystemboard.See“Partsonthesystemboard”
onpage35.
11.ReinstalltheVESAmountbracket.See“ReplacingtheVESAmountbracket”onpage99.
12.Reinstallthesystemboardshield.See“Replacingthesystemboardshield”onpage98.
13.Reinstallthecomputercover.See“Replacingthecomputercover”onpage95.
Whattodonext:
•Toworkwithanotherpieceofhardware,gototheappropriatesection.
•Tocompletetheinstallationorreplacement,goto“Completingthepartsreplacement”onpage116.
Replacingtheinternalspeakers
Attention:DonotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingtheChapter
1“Readthisfirst:Importantsafetyinformation”onpage1.
Toreplacetheinternalspeakers,dothefollowing:
1.Removeanymediafromthedrivesandturnoffallconnecteddevicesandthecomputer.Then,
disconnectallpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothe
computer.
2.Removethebackcover.See“Removingthebackcover”onpage90.
3.Removethecomputercover.See“Replacingthecomputercover”onpage95.
4.Removethesystemboardshield.See“Replacingthesystemboardshield”onpage98.
5.RemovetheVESAmountbracket.See“ReplacingtheVESAmountbracket”onpage99.
6.Locatetheinternalspeakers.See“MajorFRUsandCRUs”onpage31.
7.Removethetwoscrewsthatsecurethepowercordconnector,andthenliftthepowercordconnector
offthesystemboardforeasieraccesstotheinternalspeakercables.
8.Notetheroutingoftheinternalspeakercables,andthendisconnectthecablesfromthesystemboard.
102ThinkCentreM900zHardwareMaintenanceManual
9.Removethefourscrewsthatsecurethetwointernalspeakers,andthenremovetheinternalspeakers
fromthechassis.
Figure38.Removingtheinternalspeakers
10.Alignthefourholesinthetwonewinternalspeakerswiththecorrespondingscrewholesinthechassis.
Then,installthefourscrewstosecuretheinternalspeakers.
11.Routetheinternalspeakercables,andthenconnectthecablestothesystemboard.See“Partsonthe
systemboard”onpage35.
12.Installthetwoscrewstosecurethepowercordconnector.
13.ReinstalltheVESAmountbracket.See“ReplacingtheVESAmountbracket”onpage99.
14.Reinstallthesystemboardshield.See“Replacingthesystemboardshield”onpage98.
15.Reinstallthecomputercover.See“Replacingthecomputercover”onpage95.
Whattodonext:
•Toworkwithanotherpieceofhardware,gototheappropriatesection.
•Tocompletetheinstallationorreplacement,goto“Completingthepartsreplacement”onpage116.
Replacingthethermalsensor
Attention:DonotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingtheChapter
1“Readthisfirst:Importantsafetyinformation”onpage1.
Toreplacethethermalsensor,dothefollowing:
1.Removeanymediafromthedrivesandturnoffallconnecteddevicesandthecomputer.Then,
disconnectallpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothe
computer.
2.Removethebackcover.See“Removingthebackcover”onpage90.
3.Removethecomputercover.See“Replacingthecomputercover”onpage95.
4.Removethesystemboardshield.See“Replacingthesystemboardshield”onpage98.
5.RemovetheVESAmountbracket.See“ReplacingtheVESAmountbracket”onpage99.
6.Locatethethermalsensor.See“MajorFRUsandCRUs”onpage31.
7.Removethetwoscrewsthatsecurethepowercordconnector,andthenliftthepowercordconnector
offthesystemboardforeasieraccesstothethermalsensorcable.
8.Notetheroutingofthethermalsensorcable,andthendisconnectthecablefromthesystemboard.
Chapter9.Installingorreplacinghardware103
9.Liftthethermalsensoroutofthechassis.
Figure39.Removingthethermalsensor
10.Insertthenewthermalsensorintothecorrespondingholesinthechassis.
11.Routethethermalsensorcable,andthenconnectthecabletothesystemboard.See“Partsonthe
systemboard”onpage35.
12.Installthetwoscrewstosecurethepowercordconnector.
13.ReinstalltheVESAmountbracket.See“ReplacingtheVESAmountbracket”onpage99.
14.Reinstallthesystemboardshield.See“Replacingthesystemboardshield”onpage98.
15.Reinstallthecomputercover.See“Replacingthecomputercover”onpage95.
Whattodonext:
•Toworkwithanotherpieceofhardware,gototheappropriatesection.
•Tocompletetheinstallationorreplacement,goto“Completingthepartsreplacement”onpage116.
Replacingthesystemfan
Attention:DonotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingtheChapter
1“Readthisfirst:Importantsafetyinformation”onpage1.
Toreplacethesystemfan,dothefollowing:
1.Removeanymediafromthedrivesandturnoffallconnecteddevicesandthecomputer.Then,
disconnectallpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothe
computer.
2.Removethebackcover.See“Removingthebackcover”onpage90.
3.Removethecomputercover.See“Replacingthecomputercover”onpage95.
4.Removethesystemboardshield.See“Replacingthesystemboardshield”onpage98.
5.RemovetheVESAmountbracket.See“ReplacingtheVESAmountbracket”onpage99.
6.Locatethesystemfan.See“MajorFRUsandCRUs”onpage31.
7.Disconnectthesystemfancablefromthesystemboard.
104ThinkCentreM900zHardwareMaintenanceManual
8.Removethethreescrewsthatsecurethesystemfan,andthenremovethesystemfanfromthechassis.
Figure40.Removingthesystemfan
9.Alignthethreeholesinthenewsystemfanwiththecorrespondingscrewholesinthechassis.Then,
installthethreescrewstosecurethesystemfan.
10.Connectthesystemfancabletothesystemboard.See“Partsonthesystemboard”onpage35.
11.ReinstalltheVESAmountbracket.See“ReplacingtheVESAmountbracket”onpage99.
12.Reinstallthesystemboardshield.See“Replacingthesystemboardshield”onpage98.
13.Reinstallthecomputercover.See“Replacingthecomputercover”onpage95.
Whattodonext:
•Toworkwithanotherpieceofhardware,gototheappropriatesection.
•Tocompletetheinstallationorreplacement,goto“Completingthepartsreplacement”onpage116.
Replacingtheintegratedcamera
Attention:DonotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingtheChapter
1“Readthisfirst:Importantsafetyinformation”onpage1.
Toreplacetheintegratedcamera,dothefollowing:
1.Removeanymediafromthedrivesandturnoffallconnecteddevicesandthecomputer.Then,
disconnectallpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothe
computer.
2.Removethebackcover.See“Removingthebackcover”onpage90.
3.Removethecomputercover.See“Replacingthecomputercover”onpage95.
4.Removethesystemboardshield.See“Replacingthesystemboardshield”onpage98.
5.Locatetheintegratedcamera.See“MajorFRUsandCRUs”onpage31.
Chapter9.Installingorreplacinghardware105
6.Removethetwoscrewsthatsecuretheintegratedcamera,andthenlifttheintegratedcamerato
disconnectthecablefromit.Removetheintegratedcamerafromthechassis.
Figure41.Removingtheintegratedcamera
7.Connecttheintegratedcameracabletothenewintegratedcamera.
8.Alignthetwoscrewsintheintegratedcamerawiththecorrespondingscrewholesinthechassis.Then,
installthetwoscrewstosecuretheintegratedcamera.
9.Reinstallthesystemboardshield.See“Replacingthesystemboardshield”onpage98.
10.Reinstallthecomputercover.See“Replacingthecomputercover”onpage95.
Whattodonext:
•Toworkwithanotherpieceofhardware,gototheappropriatesection.
•Tocompletetheinstallationorreplacement,goto“Completingthepartsreplacement”onpage116.
ReplacingtheWi-Fiantennas
Attention:DonotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingtheChapter
1“Readthisfirst:Importantsafetyinformation”onpage1.
ToreplacetheWi-Fiantennas,dothefollowing:
1.Removeanymediafromthedrivesandturnoffallconnecteddevicesandthecomputer.Then,
disconnectallpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothe
computer.
2.Removethebackcover.See“Removingthebackcover”onpage90.
3.Removethecomputercover.See“Replacingthecomputercover”onpage95.
4.Removethesystemboardshield.See“Replacingthesystemboardshield”onpage98.
5.LocatetheWi-Fiantennas.See“MajorFRUsandCRUs”onpage31.
6.NotetheroutingoftheWi-Fiantennacables,andthendisconnectthecablesfromtheWi-Ficard.See
“ReplacingtheWi-Ficard”onpage107.
106ThinkCentreM900zHardwareMaintenanceManual
7.TearofftheWi-Fiantennasfromthechassis.
Figure42.RemovingtheWi-Fiantennas
8.PositionthenewWi-Fiantennasovertheappropriateposition,andthenstickthemontothechassis.
9.RoutethetheWi-Fiantennacables,andthenconnectthecablestotheWi-Ficard.See“Replacing
theWi-Ficard”onpage107.
10.Reinstallthesystemboardshield.See“Replacingthesystemboardshield”onpage98.
11.Reinstallthecomputercover.See“Replacingthecomputercover”onpage95.
Whattodonext:
•Toworkwithanotherpieceofhardware,gototheappropriatesection.
•Tocompletetheinstallationorreplacement,goto“Completingthepartsreplacement”onpage116.
ReplacingtheWi-Ficard
Attention:DonotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingtheChapter
1“Readthisfirst:Importantsafetyinformation”onpage1.
ToreplacetheWi-Ficard,dothefollowing:
1.Removeanymediafromthedrivesandturnoffallconnecteddevicesandthecomputer.Then,
disconnectallpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothe
computer.
2.Removethebackcover.See“Removingthebackcover”onpage90.
3.Removethecomputercover.See“Replacingthecomputercover”onpage95.
4.Removethesystemboardshield.See“Replacingthesystemboardshield”onpage98.
5.LocatetheWi-Ficard.See“MajorFRUsandCRUs”onpage31.
Chapter9.Installingorreplacinghardware107
6.LoosenthescrewthatsecurestheWi-Ficard,andthenremovetheWi-Ficardshieldfromthechassis.
DisconnecttheWi-FiantennacablesfromtheWi-Ficard.
Note:ThescrewcannotberemovedfromtheWi-Ficardshield.
Figure43.RemovingtheWi-FicardshieldanddisconnectingtheWi-Fiantennacables
7.PulltheWi-FicardoutoftheM.2Wi-Ficardslot.
Figure44.RemovingtheWi-Ficard
8.InsertthenewWi-FicardintotheM.2Wi-Ficardslot.See“Partsonthesystemboard”onpage35.
Then,pivottheWi-FicarddownwardsothatthescrewnotchontheWi-Ficardisalignedwiththe
screwholeinthemountingstud.
Note:DonottouchthenotchededgeoftheWi-Ficard.
9.ConnecttheWi-FiantennacablestotheWi-Ficard.
10.AlignthescrewontheWi-Ficardshieldwiththemountingstud,andthentightenthescrewtosecure
theWi-Ficard.
11.Reinstallthesystemboardshield.See“Replacingthesystemboardshield”onpage98.
12.Reinstallthecomputercover.See“Replacingthecomputercover”onpage95.
Whattodonext:
•Toworkwithanotherpieceofhardware,gototheappropriatesection.
•Tocompletetheinstallationorreplacement,goto“Completingthepartsreplacement”onpage116.
Replacingthecoin-cellbattery
Attention:DonotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingtheChapter
1“Readthisfirst:Importantsafetyinformation”onpage1.
Yourcomputerhasaspecialtypeofmemorythatmaintainsthedate,time,andsettingsforbuilt-infeatures,
suchasparallel-connectorassignments(configuration).Acoin-cellbatterykeepsthisinformationactive
whenyouturnoffthecomputer.
108ThinkCentreM900zHardwareMaintenanceManual
Thecoin-cellbatterynormallyrequiresnochargingormaintenancethroughoutitslife;however,nocoin-cell
batterylastsforever.Ifthecoin-cellbatteryfails,thedate,time,andconfigurationinformation(including
passwords)arelost.Anerrormessageisdisplayedwhenyouturnonthecomputer.
Refertothe“Lithiumcoin-cellbatterynotice”intheSafety,Warranty,andSetupGuideforinformationabout
replacinganddisposingofthecoin-cellbattery.
Toreplacethecoin-cellbattery,dothefollowing:
1.Removeanymediafromthedrivesandturnoffallconnecteddevicesandthecomputer.Then,
disconnectallpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothe
computer.
2.Removethebackcover.See“Removingthebackcover”onpage90.
3.Removethecomputercover.See“Replacingthecomputercover”onpage95.
4.Removethesystemboardshield.See“Replacingthesystemboardshield”onpage98.
5.Locatethecoin-cellbattery.See“MajorFRUsandCRUs”onpage31.
6.Removethecoin-cellbatteryasshown.
Figure45.Removingthecoin-cellbattery
7.Installthenewcoin-cellbatteryasshown.
Figure46.Installingthecoin-cellbattery
8.Reinstallthesystemboardshield.See“Replacingthesystemboardshield”onpage98.
9.Reinstallthecomputercover.See“Replacingthecomputercover”onpage95.
10.Reinstallthebackcoverandreconnectcablestoyourcomputer.See“Completingtheparts
replacement”onpage116.
11.Turnonthecomputerandallconnecteddevices.
Note:Whenthecomputeristurnedonforthefirsttimeafterreplacingthecoin-cellbattery,anerror
messagemightbedisplayed.Thisisnormalafterreplacingthecoin-cellbattery.
12.UsetheSetupUtilityprogramtosetthedate,time,andanypasswords.See“UsingtheSetupUtility
program”onpage63.
Chapter9.Installingorreplacinghardware109
Replacingthecardreader
Attention:DonotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingtheChapter
1“Readthisfirst:Importantsafetyinformation”onpage1.
Toreplacethecardreader,dothefollowing:
1.Removeanymediafromthedrivesandturnoffallconnecteddevicesandthecomputer.Then,
disconnectallpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothe
computer.
2.Removethebackcover.See“Removingthebackcover”onpage90.
3.Removethecomputercover.See“Replacingthecomputercover”onpage95.
4.Removethesystemboardshield.See“Replacingthesystemboardshield”onpage98.
5.Locatethecardreader.See“MajorFRUsandCRUs”onpage31.
6.Disconnectthecardreadercablefromthecardreader.
7.Removethetwoscrewsthatsecurethecardreader,andthenremovethecardreaderfromthechassis.
Figure47.Removingthecardreader
8.Alignthetwoholesinthenewcardreaderwiththecorrespondingscrewholesinthemountingstuds.
Then,installthetwoscrewstosecurethecardreader.
9.Connectthecardreadercabletothecardreader.
10.Reinstallthesystemboardshield.See“Replacingthesystemboardshield”onpage98.
11.Reinstallthecomputercover.See“Replacingthecomputercover”onpage95.
Whattodonext:
•Toworkwithanotherpieceofhardware,gototheappropriatesection.
•Tocompletetheinstallationorreplacement,goto“Completingthepartsreplacement”onpage116.
Replacingtheserialconnectormodule
Attention:DonotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingtheChapter
1“Readthisfirst:Importantsafetyinformation”onpage1.
Toreplacetheserialconnectormodule,dothefollowing:
1.Removeanymediafromthedrivesandturnoffallconnecteddevicesandthecomputer.Then,
disconnectallpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothe
computer.
2.Removethebackcover.See“Removingthebackcover”onpage90.
3.Removethecomputercover.See“Replacingthecomputercover”onpage95.
110ThinkCentreM900zHardwareMaintenanceManual
4.Removethesystemboardshield.See“Replacingthesystemboardshield”onpage98.
5.Locatetheserialconnectormodule.See“MajorFRUsandCRUs”onpage31.
6.Disconnecttheserialconnectormodulecablefromtheserialconnectormodule.
7.Removethescrewthatsecurestheserialconnectormodule,andthenremovetheserialconnector
modulefromthechassis.
Figure48.Removingtheserialconnectormodule
8.Aligntheholeinthenewserialconnectormodulewiththecorrespondingscrewholeinthemounting
stud.Then,installthescrewtosecuretheserialconnectormodule.
9.Connecttheserialconnectormodulecabletotheserialconnectormodule.
10.Reinstallthesystemboardshield.See“Replacingthesystemboardshield”onpage98.
11.Reinstallthecomputercover.See“Replacingthecomputercover”onpage95.
Whattodonext:
•Toworkwithanotherpieceofhardware,gototheappropriatesection.
•Tocompletetheinstallationorreplacement,goto“Completingthepartsreplacement”onpage116.
Replacingtheheatsink
Attention:DonotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingtheChapter
1“Readthisfirst:Importantsafetyinformation”onpage1.
CAUTION:
Theheatsinkmightbeveryhot.Beforeyouopenthebackcover,turnoffthecomputerandwait
severalminutesuntilthecomputeriscool.
Toreplacetheheatsink,dothefollowing:
1.Removeanymediafromthedrivesandturnoffallconnecteddevicesandthecomputer.Then,
disconnectallpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothe
computer.
2.Removethebackcover.See“Removingthebackcover”onpage90.
3.Removethecomputercover.See“Replacingthecomputercover”onpage95.
4.Removethesystemboardshield.See“Replacingthesystemboardshield”onpage98.
5.Locatetheheatsink.See“MajorFRUsandCRUs”onpage31.
Chapter9.Installingorreplacinghardware111
6.Followthesequenceshownbelowtoloosenscrew1throughscrew5,andthenremovetheheat
sinkfromthechassis.
Notes:
a.Carefullyremovethefivescrewsfromthesystemboardtoavoidanypossibledamagetothesystem
board.Thefivescrewscannotberemovedfromtheheatsink.
b.Youmighthavetogentlytwisttheheatsinktofreeitfromthemicroprocessor.
c.Donottouchthethermalgreasewhilehandlingtheheatsink.
Figure49.Removingtheheatsink
7.Alignthefourscrewsinthenewheatsinkwiththecorrespondingscrewholesinthesystemboard.
Then,followthesequenceshownabovetotightenthefivescrewstosecuretheheatsink.
8.Reinstallthesystemboardshield.See“Replacingthesystemboardshield”onpage98.
9.Reinstallthecomputercover.See“Replacingthecomputercover”onpage95.
Whattodonext:
•Toworkwithanotherpieceofhardware,gototheappropriatesection.
•Tocompletetheinstallationorreplacement,goto“Completingthepartsreplacement”onpage116.
Replacingthesystemboard
Attention:DonotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingtheChapter
1“Readthisfirst:Importantsafetyinformation”onpage1.
Note:EachcomputerhasauniqueVitalProductData(VPD)codestoredinthenonvolatilememoryon
thesystemboard.Afteryoureplacethesystemboard,theVPDmustbeupdated.ToupdatetheVPD,
see“UpdatingtheBIOS”onpage68.
Toreplacethesystemboard,dothefollowing:
1.Removeanymediafromthedrivesandturnoffallconnecteddevicesandthecomputer.Then,
disconnectallpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothe
computer.
2.Removethebackcover.See“Removingthebackcover”onpage90.
3.Removethecomputercover.See“Replacingthecomputercover”onpage95.
4.Removethesystemboardshield.See“Replacingthesystemboardshield”onpage98.
5.RemovetheWi-Ficard.See“ReplacingtheWi-Ficard”onpage107.
6.Removethememorymodules.See“Replacingamemorymodule”onpage92.
7.Removetheheatsink.See“Replacingtheheatsink”onpage111.
8.Removethecardreader.See“Replacingthecardreader”onpage110.
112ThinkCentreM900zHardwareMaintenanceManual
9.Removetheserialconnectormodule.See“Replacingtheserialconnectormodule”onpage110.
10.Recordthecableroutingandcableconnections,andthendisconnectallcablesfromthesystemboard.
See“Partsonthesystemboard”onpage35.
11.Removethesevenscrewsthatsecurethesystemboard,andthencarefullyliftthesystemboardoutof
thechassis.
Note:Carefullyhandlethesystemboardbyitsedges.
Figure50.Removingthesystemboard
12.Removethemicroprocessorfromthefailingsystemboard,andtheninstallitontothenewsystem
board.See“Replacingthemicroprocessor”onpage114.
13.Alignthesevenholesinthenewsystemboardwiththecorrespondingscrewholesinthechassis.Then,
installthesevenscrewstosecurethesystemboard.
14.Routeallthecablesthatyoudisconnectedfromthefailingsystemboard,andthenconnectthecables
tothenewsystemboard.See“Partsonthesystemboard”onpage35.
15.Reinstalltheserialconnectormodule.See“Replacingtheserialconnectormodule”onpage110.
16.Reinstallthecardreader.See“Replacingthecardreader”onpage110.
17.Reinstalltheheatsink.See“Replacingtheheatsink”onpage111.
18.Reinstallthememorymodules.See“Replacingamemorymodule”onpage92.
19.ReinstalltheWi-Ficard.See“ReplacingtheWi-Ficard”onpage107.
20.Reinstallthesystemboardshield.See“Replacingthesystemboardshield”onpage98.
21.Reinstallthecomputercover.See“Replacingthecomputercover”onpage95.
22.Reinstallthebackcoverandreconnectcablestoyourcomputer.See“Completingtheparts
replacement”onpage116.
Thefailingsystemboardmustbereturnedwithamicroprocessorsocketcovertoprotectthepinsduring
shippingandhandling.
Chapter9.Installingorreplacinghardware113
Toinstallthemicroprocessorsocketcover,dothefollowing:
1.Afteryouhaveremovedthemicroprocessorfromthefailingsystemboard,closethemicroprocessor
retainer.Then,putthelevertothelockedpositiontosecuretheretainerinplace.
2.Notetheorientationofthesocketcover,andinstallonesideofthesocketcoverintothemicroprocessor
socket.Carefullypresstheothersideofthesocketcoverdownwarduntilthesocketcoversnaps
intoposition.
3.Carefullycheckthefourcornersofthesocketcovertoensurethatthecoverisseatedsecurely.
4.Followanyadditionalinstructionsthatareincludedwiththereplacementpartyoureceived.
Replacingthemicroprocessor
Attention:DonotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingtheChapter
1“Readthisfirst:Importantsafetyinformation”onpage1.
CAUTION:
Theheatsinkandmicroprocessormightbeveryhot.Beforeyouopenthecomputercover,turnoff
thecomputerandwaitseveralminutesuntilthecomputeriscool.
Toreplacethemicroprocessor,dothefollowing:
1.Removeanymediafromthedrivesandturnoffallconnecteddevicesandthecomputer.Then,
disconnectallpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothe
computer.
2.Removethebackcover.See“Removingthebackcover”onpage90.
3.Removethecomputercover.See“Replacingthecomputercover”onpage95.
4.Removethesystemboardshield.See“Replacingthesystemboardshield”onpage98.
5.Removetheheatsink.See“Replacingtheheatsink”onpage111.
6.Locatethemicroprocessor.See“MajorFRUsandCRUs”onpage31.
7.Disconnectallcablesconnectedtothesystemboard.
8.Pressthesmallhandledownwardtoreleaseitfromtheretainer,andthenopentheretainertoaccess
themicroprocessor.
Figure51.Accessingthemicroprocessor
9.Liftthemicroprocessorstraightupandoutofthemicroprocessorsocket.
Notes:
114ThinkCentreM900zHardwareMaintenanceManual
•Yourmicroprocessorandsocketmightlookdifferentfromtheoneillustrated.
•Touchonlytheedgesofthemicroprocessor.Donottouchthegoldcontactsonthebottom.
•Donotdropanythingontothemicroprocessorsocketwhileitisexposed.Thesocketpinsmustbe
keptascleanaspossible.
Figure52.Removingthemicroprocessor
10.Ensurethatthesmallhandleisintheraisedpositionandthemicroprocessorretainerisfullyopen.
11.Removetheprotectivecoverthatprotectsthegoldcontactsofthenewmicroprocessor.
12.Notetheorientationofthenewmicroprocessor.Holdthenewmicroprocessorbyitsedgesandalign
thenotches1onitwiththetabs2inthemicroprocessorsocket.Then,carefullylowerthenew
microprocessorstraightdownintothemicroprocessorsocket.
Note:Thesmalltriangle3ononecornerofthenewmicroprocessoristhemicroprocessororientation
indicator.Thenewmicroprocessorisinthecorrectorientationwhenthisindicatorpointstothebeveled
corner4ofthemicroprocessorsocket.
Figure53.Installingthemicroprocessor
Chapter9.Installingorreplacinghardware115
13.Closethemicroprocessorretainerandlockitintopositionwiththesmallhandletosecurethenew
microprocessorinthesocket.
14.Reinstalltheheatsink.See“Replacingtheheatsink”onpage111.
15.Reinstallthesystemboardshield.See“Replacingthesystemboardshield”onpage98.
16.Reinstallthecomputercover.See“Replacingthecomputercover”onpage95.
17.Reconnectallcablesthatweredisconnectedfromthesystemboard.
Whattodonext:
•Toworkwithanotherpieceofhardware,gototheappropriatesection.
•Tocompletetheinstallationorreplacement,goto“Completingthepartsreplacement”onpage116.
Completingthepartsreplacement
Aftercompletingtheinstallationorreplacementforallparts,reinstallthebackcoverandreconnectcables.
Dependingonthepartsyouinstalledorreplaced,youmightneedtoconfirmtheupdatedinformationinthe
SetupUtilityprogram.Referto“UsingtheSetupUtilityprogram”onpage63.
Toreinstallthebackcoverandreconnectcablestoyourcomputer,dothefollowing:
1.Ensurethatallcomponentshavebeenreassembledcorrectlyandthatnotoolsorloosescrewsareleft
insideyourcomputer.See“Computercomponents”onpage31forthelocationsofvariouscomponents.
2.Slidethebackcoverasshowntoinstallittothechassis.
Figure54.Installingthebackcover
3.Installthecomputerstand.See“Replacingthecomputerstand”onpage88.
4.Placethecomputerinanuprightposition.
5.Ifalockingdeviceisavailable,useittolockthecomputer.See“Lockingyourcomputer”onpage59.
6.Reconnecttheexternalcablesandpowercordstothecorrespondingconnectorsonthecomputer.
See“Hardwarelocations”onpage27.
7.Updateyourconfiguration.See“UsingtheSetupUtilityprogram”onpage63.
8.Ifanewlyinstalledhardwarecomponentdoesnotworknormally,updatethedevicedriver.See
“Keepingyourcomputercurrent”onpage56.
116ThinkCentreM900zHardwareMaintenanceManual
Chapter10.Gettinginformation,help,andservice
Thischaptercontainsthefollowingtopics:
•“Informationresources”onpage117
•“Helpandservice”onpage118
Informationresources
Youcanusetheinformationinthissectiontoaccessusefulresourcesrelatingtoyourcomputingneeds.
Accessingtheuserguideinvariouslanguages
Toaccesstheuserguideinvariouslanguages,goto:
http://www.lenovo.com/UserManuals
Windowshelpsystem
Note:IfyouusetheonlinehelpforWindows7orthehelpforWindows10,ensurethatyourcomputer
isconnectedtotheInternet.
TheWindowshelpsystemprovidesyouwithdetailedinformationaboutusingtheWindowsoperatingsystem.
ToaccesstheWindowshelpsystem,dothefollowing:
1.ClicktheStartbuttontoopentheStartmenu.
2.DependingonyourWindowsversion,dooneofthefollowing:
•ForWindows7:ClickHelpandSupport.Youcanchoosetousetheonlineorofflinehelpatthe
bottomofthescreen.
•ForWindows10:ClickGetstarted.
Safetyandwarranty
TheSafety,Warranty,andSetupGuideprovidedwithyourcomputercontainsimportantsafetyinformation,
productwarrantyterms,initialsetupprocedure,andlegalnotices.Ensurethatyoureadandunderstandall
safetyinformationintheSafety,Warranty,andSetupGuidebeforeusingyourcomputer.
Inaddition,readandunderstandChapter1“Readthisfirst:Importantsafetyinformation”onpage1before
usingyourcomputer.Thisprefaceprovidesadditionalsafetyinformationthatappliestotopicsandtasks
describedinthisUserGuide.
LenovoWebsite
TheLenovoWebsite(http://www.lenovo.com)providesup-to-dateinformationandservicestohelpyoubuy,
upgrade,andmaintainyourcomputer.Youalsocandothefollowing:
•Shopfordesktopandnotebookcomputers,monitors,projectors,upgradesandaccessoriesforyour
computer,andspecialoffers.
•Purchaseadditionalservices,suchassupportforhardware,operatingsystems,applicationprograms,
networksetupandconfiguration,andcustominstallations.
•Purchaseupgradesandextendedhardwarerepairservices.
•Accesstroubleshootingandsupportinformationforyourcomputermodelandothersupportedproducts.
©CopyrightLenovo2015117
•FindaServiceProviderlocatednearyou.
LenovoSupportWebsite
TechnicalsupportinformationisavailableontheLenovoSupportWebsiteat:
http://www.lenovo.com/support
ThisWebsiteisupdatedwiththelatestsupportinformationsuchasthefollowing:
•Driversandsoftware
•Diagnosticsolutions
•Productandservicewarranty
•Productandpartsdetails
•Userguidesandmanuals
•Knowledgebaseandfrequentlyaskedquestions
•LenovoSupportphonenumbers
Frequentlyaskedquestions
Fortheanswerstofrequentlyaskedquestionsaboutyourcomputer,goto:
http://www.lenovo.com/support/faq
Helpandservice
Thissectionprovidesinformationaboutobtaininghelpandservice.
Callingforservice
Duringthewarrantyperiod,youcangethelpandinformationbytelephonethroughtheCustomerSupport
Center.Forthewarrantyperiodofyourcomputer,gotohttp://www.lenovo.com/warranty-status.Foralistof
LenovoSupportphonenumbers,gotohttp://www.lenovo.com/support/phone.
Note:Phonenumbersaresubjecttochangewithoutnotice.Ifthenumberforyourcountryorregionisnot
provided,contactyourLenovoresellerorLenovomarketingrepresentative.
Thefollowingservicesareavailableduringthewarrantyperiod:
•Problemdetermination-Trainedservicepersonnelareavailabletoassistyouwithdetermininga
hardwareproblemanddecidingwhatactionisnecessarytofixtheproblem.
•Hardwarerepair-Iftheproblemiscausedbyhardwareunderwarranty,trainedservicepersonnelare
availabletoprovidetheapplicablelevelofservice.
•EngineeringChangemanagement-Theremightbechangesthatarerequiredafteraproducthas
beensold.LenovooryourresellerwillmakeselectedEngineeringChanges(ECs)thatapplytoyour
hardwareavailable.
Theseitemsarenotcoveredbythewarranty:
•ReplacementoruseofpartsnotmanufacturedfororbyLenovoornon-warrantedLenovoparts
•Identificationofsoftwareproblemsources
•ConfigurationofBIOSaspartofaninstallationorupgrade
•Changes,modifications,orupgradestodevicedrivers
•Installationandmaintenanceofnetworkoperatingsystems(NOS)
•Installationandmaintenanceofapplicationprograms
Ifpossible,beatyourcomputerwhenyoucall.Havethefollowinginformationavailable:
118ThinkCentreM900zHardwareMaintenanceManual
•Machinetypeandmodel
•Serialnumbersofyourhardwareproducts
•Descriptionoftheproblem
•Exactwordingofanyerrormessages
•Hardwareandsoftwareconfigurationinformation
Usingotherservices
Youmighttravelwithyourcomputerorrelocateittoacountryorregionwherethemachinetypeforyour
desktopornotebookcomputerissold.Insuchasituation,yourcomputermightbeeligibleforInternational
WarrantyService,whichautomaticallyentitlesyoutoobtainwarrantyservicethroughoutthewarrantyperiod.
Servicewillbeperformedbyserviceprovidersauthorizedtoperformwarrantyservice.
Servicemethodsandproceduresvarybycountry,andsomeservicesmightnotbeavailableinallcountries.
InternationalWarrantyServiceisdeliveredthroughthemethodofservice(suchasdepot,carry-in,or
on-siteservice)thatisprovidedintheservicingcountry.Servicecentersincertaincountriesmightnotbe
abletoserviceallmodelsofaparticularmachinetype.Insomecountries,feesandrestrictionsmight
applyatthetimeofservice.
TodeterminewhetheryourcomputeriseligibleforInternationalWarrantyServiceandtoviewalistofthe
countriesorregionswhereserviceisavailable,gotohttp://www.lenovo.com/support.
FortechnicalassistancewiththeinstallationoforquestionsrelatedtoServicePacksforyourpreinstalled
MicrosoftWindowsproduct,gototheMicrosoftProductSupportWebsiteathttp://support.microsoft.com.
YoualsocancontacttheLenovoCustomerSupportCenterforhelp.Somefeesmightapply.
Purchasingadditionalservices
Duringandafterthewarrantyperiod,youcanpurchaseadditionalservices.Examplesoftheseadditional
servicesinclude:
•Supportforhardware,operatingsystems,andapplicationprograms
•Networksetupandconfigurationservices
•Upgradedorextendedhardwarerepairservices
•Custominstallationservices
Serviceavailabilityandservicenamemightvarybycountryorregion.Formoreinformationaboutthese
services,gototheLenovoWebsiteat:
http://www.lenovo.com
Chapter10.Gettinginformation,help,andservice119
120ThinkCentreM900zHardwareMaintenanceManual
AppendixA.Regulatoryinformation
Thelatestcomplianceinformationisavailableathttp://www.lenovo.com/compliance.
Exportclassificationnotice
ThisproductissubjecttotheUnitedStatesExportAdministrationRegulations(EAR)andhasanExport
ClassificationControlNumber(ECCN)of5A992.c.Itcanbere-exportedexcepttoanyoftheembargoed
countriesintheEARE1countrylist.
Electronicemissionsnotices
ThefollowinginformationreferstoLenovopersonalcomputermachinetypes10F2,10F3,10F4,and10F5.
FederalCommunicationsCommissionDeclarationofConformity
ThisequipmenthasbeentestedandfoundtocomplywiththelimitsforaClassBdigitaldevice,pursuant
toPart15oftheFCCRules.Theselimitsaredesignedtoprovidereasonableprotectionagainstharmful
interferenceinaresidentialinstallation.Thisequipmentgenerates,uses,andcanradiateradiofrequency
energyand,ifnotinstalledandusedinaccordancewiththeinstructions,maycauseharmfulinterference
toradiocommunications.However,thereisnoguaranteethatinterferencewillnotoccurinaparticular
installation.Ifthisequipmentdoescauseharmfulinterferencetoradioortelevisionreception,whichcanbe
determinedbyturningtheequipmentoffandon,theuserisencouragedtotrytocorrecttheinterferenceby
oneormoreofthefollowingmeasures:
•Reorientorrelocatethereceivingantenna.
•Increasetheseparationbetweentheequipmentandreceiver.
•Connecttheequipmentintoanoutletonacircuitdifferentfromthattowhichthereceiverisconnected.
•Consultanauthorizeddealerorservicerepresentativeforhelp.
Lenovoisnotresponsibleforanyradioortelevisioninterferencecausedbyusingotherthanspecifiedor
recommendedcablesandconnectorsorbyunauthorizedchangesormodificationstothisequipment.
Unauthorizedchangesormodificationscouldvoidtheuser'sauthoritytooperatetheequipment.
ThisdevicecomplieswithPart15oftheFCCRules.Operationissubjecttothefollowingtwoconditions:(1)
thisdevicemaynotcauseharmfulinterference,and(2)thisdevicemustacceptanyinterferencereceived,
includinginterferencethatmaycauseundesiredoperation.
ResponsibleParty:
Lenovo(UnitedStates)Incorporated
1009ThinkPlace-BuildingOne
Morrisville,NC27560
PhoneNumber:919-294-5900
IndustryCanadaClassBemissioncompliancestatement
CANICES-3(B)/NMB-3(B)
EuropeanUnion-CompliancetotheElectromagneticCompatibilityDirective
©CopyrightLenovo2015121
ThisproductisinconformitywiththeprotectionrequirementsofEUCouncilDirective2004/108/EConthe
approximationofthelawsoftheMemberStatesrelatingtoelectromagneticcompatibility.Lenovocannot
acceptresponsibilityforanyfailuretosatisfytheprotectionrequirementsresultingfromanon-recommended
modificationoftheproduct,includingtheinstallationofoptioncardsfromothermanufacturers.
ThisproducthasbeentestedandfoundtocomplywiththelimitsforClassBInformationTechnology
EquipmentaccordingtoEuropeanStandardEN55022.ThelimitsforClassBequipmentwerederived
fortypicalresidentialenvironmentstoprovidereasonableprotectionagainstinterferencewithlicensed
communicationdevices.
Lenovo,Einsteinova21,85101Bratislava,Slovakia
GermanClassBcompliancestatement
DeutschsprachigerEUHinweis:
HinweisfürGerätederKlasseBEU-RichtliniezurElektromagnetischenVerträglichkeit
DiesesProduktentsprichtdenSchutzanforderungenderEU-Richtlinie2004/108/EG(früher89/336/EWG)zur
AngleichungderRechtsvorschriftenüberdieelektromagnetischeVerträglichkeitindenEU-Mitgliedsstaaten
undhältdieGrenzwertederEN55022KlasseBein.
Umdiesessicherzustellen,sinddieGerätewieindenHandbüchernbeschriebenzuinstallierenundzu
betreiben.DesWeiterendürfenauchnurvonderLenovoempfohleneKabelangeschlossenwerden.
LenovoübernimmtkeineVerantwortungfürdieEinhaltungderSchutzanforderungen,wenndasProdukt
ohneZustimmungderLenovoverändertbzw.wennErweiterungskomponentenvonFremdherstellernohne
EmpfehlungderLenovogesteckt/eingebautwerden.
Deutschland:
EinhaltungdesGesetzesüberdieelektromagnetischeVerträglichkeitvonBetriebsmitteln
DiesesProduktentsprichtdem„GesetzüberdieelektromagnetischeVerträglichkeitvonBetriebsmitteln“
EMVG(früher„GesetzüberdieelektromagnetischeVerträglichkeitvonGeräten“).DiesistdieUmsetzungder
EU-Richtlinie2004/108/EG(früher89/336/EWG)inderBundesrepublikDeutschland.
ZulassungsbescheinigunglautdemDeutschenGesetzüberdieelektromagnetischeVerträglichkeit
vonBetriebsmitteln,EMVGvom20.Juli2007(früherGesetzüberdieelektromagnetische
VerträglichkeitvonGeräten),bzw.derEMVEGRichtlinie2004/108/EC(früher89/336/EWG),für
GerätederKlasseB.
DiesesGerätistberechtigt,inÜbereinstimmungmitdemDeutschenEMVGdasEG-Konformitätszeichen
-CE-zuführen.VerantwortlichfürdieKonformitätserklärungnachParagraf5desEMVGistdieLenovo
(Deutschland)GmbH,Gropiusplatz10,D-70563Stuttgart.
InformationeninHinsichtEMVGParagraf4Abs.(1)4:
DasGeräterfülltdieSchutzanforderungennachEN55024undEN55022KlasseB.
KoreaClassBcompliancestatement
122ThinkCentreM900zHardwareMaintenanceManual
JapanVCCIClassBcompliancestatement
Japancompliancestatementforproductswhichconnecttothepowermainswithratedcurrent
lessthanorequalto20Aperphase
Japannoticeforacpowercord
Theacpowercordshippedwithyourproductcanbeusedonlyforthisspecificproduct.Donotusetheac
powercordforotherdevices.
LenovoproductserviceinformationforTaiwan
KeyboardandmousecompliancestatementforTaiwan
Eurasiancompliancemark
Brazilaudionotice
Ouvirsonscommaisde85decibéisporlongosperíodospodeprovocardanosaosistemaauditivo.
Mexicowireless-radiocomplianceinformation
Advertencia:EnMexicolaoperacióndeesteequipoestásujetaalassiguientesdoscondiciones:(1)es
posiblequeesteequipoodispositivonocauseinterferenciaperjudicialy(2)esteequipoodispositivodebe
aceptarcualquierinterferencia,incluyendolaquepuedacausarsuoperaciónnodeseada.
Taiwanvisionprecautionnotice
Additionalregulatoryinformation
Foradditionalregulatoryinformation,refertotheRegulatoryNoticeshippedwithyourcomputer.Depending
ontheconfigurationofyourcomputerandthecountryorregionwherethecomputerwaspurchased,
AppendixA.Regulatoryinformation123
AppendixB.WEEEandrecyclinginformation
Lenovoencouragesownersofinformationtechnology(IT)equipmenttoresponsiblyrecycletheir
equipmentwhenitisnolongerneeded.Lenovooffersavarietyofprogramsandservicestoassist
equipmentownersinrecyclingtheirITproducts.ForinformationonrecyclingLenovoproducts,goto
http://www.lenovo.com/recycling.Thelatestenvironmentalinformationaboutourproductsisavailableat
http://www.lenovo.com/ecodeclaration.
ImportantWEEEinformation
TheWEEEmarkingonLenovoproductsappliestocountrieswithWEEEande-wasteregulations(for
example,theEuropeanWEEEDirective,IndiaE-WasteManagement&HandlingRules,2011).Appliancesare
labeledinaccordancewithlocalregulationsconcerningwasteelectricalandelectronicequipment(WEEE).
Theseregulationsdeterminetheframeworkforthereturnandrecyclingofusedappliancesasapplicable
withineachgeography.Thislabelisappliedtovariousproductstoindicatethattheproductisnottobe
thrownaway,butratherputintheestablishedcollectionsystemsforreclaimingtheseendoflifeproducts.
Usersofelectricalandelectronicequipment(EEE)withtheWEEEmarkingmustnotdisposeofendof
lifeEEEasunsortedmunicipalwaste,butusethecollectionframeworkavailabletothemforthereturn,
recycle,andrecoveryofWEEEandtominimizeanypotentialeffectsofEEEontheenvironmentand
humanhealthduetothepresenceofhazardoussubstances.ForadditionalWEEEinformation,goto:
http://www.lenovo.com/recycling
RecyclinginformationforJapan
CollectingandrecyclingadisusedLenovocomputerormonitor
IfyouareacompanyemployeeandneedtodisposeofaLenovocomputerormonitorthatistheproperty
ofthecompany,youmustdosoinaccordancewiththeLawforPromotionofEffectiveUtilizationof
Resources.Computersandmonitorsarecategorizedasindustrialwasteandshouldbeproperlydisposed
ofbyanindustrialwastedisposalcontractorcertifiedbyalocalgovernment.InaccordancewiththeLaw
forPromotionofEffectiveUtilizationofResources,LenovoJapanprovides,throughitsPCCollecting
andRecyclingServices,forthecollecting,reuse,andrecyclingofdisusedcomputersandmonitors.For
details,visittheLenovoWebsiteathttp://www.lenovo.com/recycling/japan.PursuanttotheLawfor
PromotionofEffectiveUtilizationofResources,thecollectingandrecyclingofhome-usedcomputers
andmonitorsbythemanufacturerwasbegunonOctober1,2003.Thisserviceisprovidedfreeof
chargeforhome-usedcomputerssoldafterOctober1,2003.Fordetails,visittheLenovoWebsiteat
http://www.lenovo.com/recycling/japan.
©CopyrightLenovo2015125
DisposingofLenovocomputercomponents
SomeLenovocomputerproductssoldinJapanmayhavecomponentsthatcontainheavymetalsorother
environmentalsensitivesubstances.Toproperlydisposeofdisusedcomponents,suchasaprintedcircuit
boardordrive,usethemethodsdescribedaboveforcollectingandrecyclingadisusedcomputerormonitor.
DisposingofdisusedlithiumbatteriesfromLenovocomputers
Abutton-shapedlithiumbatteryisinstalledinsideyourLenovocomputertoprovidepowertothecomputer
clockwhilethecomputerisoffordisconnectedfromthemainpowersource.Ifyouneedtoreplaceitwitha
newone,contactyourplaceofpurchaseorcontactLenovoforservice.Ifyouneedtodisposeofadisused
lithiumbattery,insulateitwithvinyltape,contactyourplaceofpurchaseoranindustrial-waste-disposal
operator,andfollowtheirinstructions.Disposalofalithiumbatterymustcomplywithlocalordinances
andregulations.
RecyclinginformationforBrazil
DeclaraçõesdeReciclagemnoBrasil
DescartedeumProdutoLenovoForadeUso
Equipamentoselétricoseeletrônicosnãodevemserdescartadosemlixocomum,masenviadosàpontosde
coleta,autorizadospelofabricantedoprodutoparaquesejamencaminhadoseprocessadosporempresas
especializadasnomanuseioderesíduosindustriais,devidamentecertificadaspelosorgãosambientais,de
acordocomalegislaçãolocal.
ALenovopossuiumcanalespecíficoparaauxiliá-lonodescartedessesprodutos.Casovocêpossua
umprodutoLenovoemsituaçãodedescarte,ligueparaonossoSACouencaminheume-mailpara:
reciclar@lenovo.com,informandoomodelo,númerodesérieecidade,afimdeenviarmosasinstruções
paraocorretodescartedoseuprodutoLenovo.
BatteryrecyclinginformationforTaiwan
BatteryrecyclinginformationfortheEuropeanUnion
Notice:ThismarkappliesonlytocountrieswithintheEuropeanUnion(EU).
126ThinkCentreM900zHardwareMaintenanceManual
BatteriesorpackagingforbatteriesarelabeledinaccordancewithEuropeanDirective2006/66/EC
concerningbatteriesandaccumulatorsandwastebatteriesandaccumulators.TheDirectivedeterminesthe
frameworkforthereturnandrecyclingofusedbatteriesandaccumulatorsasapplicablethroughoutthe
EuropeanUnion.Thislabelisappliedtovariousbatteriestoindicatethatthebatteryisnottobethrown
away,butratherreclaimeduponendoflifeperthisDirective.
InaccordancewiththeEuropeanDirective2006/66/EC,batteriesandaccumulatorsarelabeledtoindicate
thattheyaretobecollectedseparatelyandrecycledatendoflife.Thelabelonthebatterymayalso
includeachemicalsymbolforthemetalconcernedinthebattery(Pbforlead,Hgformercury,andCdfor
cadmium).Usersofbatteriesandaccumulatorsmustnotdisposeofbatteriesandaccumulatorsasunsorted
municipalwaste,butusethecollectionframeworkavailabletocustomersforthereturn,recycling,and
treatmentofbatteriesandaccumulators.Customerparticipationisimportanttominimizeanypotential
effectsofbatteriesandaccumulatorsontheenvironmentandhumanhealthduetothepotentialpresenceof
hazardoussubstances.Forpropercollectionandtreatment,goto:
http://www.lenovo.com/recycling
AppendixB.WEEEandrecyclinginformation127
128ThinkCentreM900zHardwareMaintenanceManual
AppendixC.RestrictionofHazardousSubstancesDirective
(RoHS)
Thelatestenvironmentalinformationisavailableathttp://www.lenovo.com/ecodeclaration.
EuropeanUnionRoHS
ThisLenovoproduct,withincludedparts(cables,cords,andsoon)meetstherequirementsofDirective
2011/65/EUontherestrictionoftheuseofcertainhazardoussubstancesinelectricalandelectronic
equipment(“RoHSrecast”or“RoHS2”).
FormoreinformationaboutLenovoworldwidecomplianceonRoHS,goto:
http://www.lenovo.com/social_responsibility/us/en/RoHS_Communication.pdf
TurkishRoHS
TheLenovoproductmeetstherequirementsoftheRepublicofTurkeyDirectiveontheRestrictionoftheUse
ofCertainHazardousSubstancesinWasteElectricalandElectronicEquipment(WEEE).
UkraineRoHS
IndiaRoHS
RoHScompliantasperE-Waste(Management&Handling)Rules,2011.
©CopyrightLenovo2015129
ChinaRoHS
130ThinkCentreM900zHardwareMaintenanceManual
AppendixD.ChinaEnergyLabel
©CopyrightLenovo2015131
132ThinkCentreM900zHardwareMaintenanceManual
AppendixE.ENERGYSTARmodelinformation
ENERGYSTAR®isajointprogramoftheU.S.EnvironmentalProtectionAgencyandtheU.S.Department
ofEnergyaimedatsavingmoneyandprotectingtheenvironmentthroughenergyefficientproductsand
practices.
LenovoisproudtoofferourcustomersproductswithanENERGYSTARcompliantdesignation.Some
modelsofthefollowingmachinetypeshavebeendesignedandtestedtoconformtotheENERGYSTAR
programrequirementforcomputersatthetimeofmanufacture:10F2,10F3,10F4,and10F5.Formore
informationaboutENERGYSTARratingsforLenovocomputers,gotohttp://www.lenovo.com.
ByusingENERGYSTARcompliantproductsandtakingadvantageofthepower-managementfeaturesof
yourcomputer,youreducetheconsumptionofelectricity.Reducedelectricalconsumptioncontributesto
potentialfinancialsavings,acleanerenvironment,andthereductionofgreenhousegasemissions.
FormoreinformationaboutENERGYSTAR,goto:
http://www.energystar.gov
Lenovoencouragesyoutomakeefficientuseofenergyanintegralpartofyourday-to-dayoperations.To
helpinthisendeavor,setthefollowingpower-managementfeaturestotakeeffectwhenyourcomputerhas
beeninactiveforaspecifiedduration:
Table1.ENERGYSTARpower-managementfeatures
Windows7orWindows10operatingsystem
Powerplan:Default
•Turnoffthedisplay:After10minutes
•Putthecomputertosleep:After25minutes
•Advancedpowersettings:
–Turnoffharddiskdrives:After20minutes
–Hibernate:Never
ToawakenyourcomputerfromaSleepmode,pressanykeyonyourkeyboard.
Tochangepowersettings,dothefollowing:
1.OpenControlPanelbydoingoneofthefollowing:
•ForWindows7:ClicktheStartbuttontoopentheStartmenu.
•ForWindows10:Right-clicktheStartbuttontoopentheStartcontextmenu.
2.ClickControlPanel.ViewControlPanelusingLargeiconsorSmallicons,andthenclickPower
Options.
3.Followtheinstructionsonthescreen.
©CopyrightLenovo2015133
134ThinkCentreM900zHardwareMaintenanceManual
AppendixF.Notices
Lenovomaynotoffertheproducts,services,orfeaturesdiscussedinthisdocumentinallcountries.Consult
yourlocalLenovorepresentativeforinformationontheproductsandservicescurrentlyavailableinyour
area.AnyreferencetoaLenovoproduct,program,orserviceisnotintendedtostateorimplythatonlythat
Lenovoproduct,program,orservicemaybeused.Anyfunctionallyequivalentproduct,program,orservice
thatdoesnotinfringeanyLenovointellectualpropertyrightmaybeusedinstead.However,itistheuser's
responsibilitytoevaluateandverifytheoperationofanyotherproduct,program,orservice.
Lenovomayhavepatentsorpendingpatentapplicationscoveringsubjectmatterdescribedinthis
document.Thefurnishingofthisdocumentdoesnotgiveyouanylicensetothesepatents.Youcansend
licenseinquiries,inwriting,to:
Lenovo(UnitedStates),Inc.
1009ThinkPlace-BuildingOne
Morrisville,NC27560
U.S.A.
Attention:LenovoDirectorofLicensing
LENOVOPROVIDESTHISPUBLICATION“ASIS”WITHOUTWARRANTYOFANYKIND,EITHEREXPRESS
ORIMPLIED,INCLUDING,BUTNOTLIMITEDTO,THEIMPLIEDWARRANTIESOFNON-INFRINGEMENT,
MERCHANTABILITYORFITNESSFORAPARTICULARPURPOSE.Somejurisdictionsdonotallow
disclaimerofexpressorimpliedwarrantiesincertaintransactions,therefore,thisstatementmaynotapply
toyou.
Thisinformationcouldincludetechnicalinaccuraciesortypographicalerrors.Changesareperiodically
madetotheinformationherein;thesechangeswillbeincorporatedinneweditionsofthepublication.
Lenovomaymakeimprovementsand/orchangesintheproduct(s)and/ortheprogram(s)describedinthis
publicationatanytimewithoutnotice.
Theproductsdescribedinthisdocumentarenotintendedforuseinimplantationorotherlifesupport
applicationswheremalfunctionmayresultininjuryordeathtopersons.Theinformationcontainedinthis
documentdoesnotaffectorchangeLenovoproductspecificationsorwarranties.Nothinginthisdocument
shalloperateasanexpressorimpliedlicenseorindemnityundertheintellectualpropertyrightsofLenovo
orthirdparties.Allinformationcontainedinthisdocumentwasobtainedinspecificenvironmentsandis
presentedasanillustration.Theresultobtainedinotheroperatingenvironmentsmayvary.
Lenovomayuseordistributeanyoftheinformationyousupplyinanywayitbelievesappropriatewithout
incurringanyobligationtoyou.
Anyreferencesinthispublicationtonon-LenovoWebsitesareprovidedforconvenienceonlyanddonotin
anymannerserveasanendorsementofthoseWebsites.ThematerialsatthoseWebsitesarenotpartof
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136ThinkCentreM900zHardwareMaintenanceManual
