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LenovoH520eHardwareMaintenanceManual
ideaideaideaCentreidea
MachineTypes:90AM
Note:Beforeusingthisinformationandtheproductitsupports,besuretoreadandunderstandChapter2
Safetyinformation”onpage3andAppendixANotices”onpage101.
FirstEdition(January2013)
©CopyrightLenoo2013.
LIMITEDANDRESTRICTEDRIGHTSNOTICE:IfdataorsoftwareisdeliveredpursuantaGeneralServicesAdministration
GSA”contract,use,reproduction,ordisclosureissubjecttorestrictionssetforthinContractNo.GS-35F-05925.
Contents
Chapter1.Aboutthismanual......1
Importantsafetyinformation..........1
Chapter2.Safetyinformation......3
Generalsafety................3
Electricalsafety...............3
Voltage-selectionswitch............5
Safetyinspectionguide............5
Handlingelectrostaticdischarge-sensitive
devices..................6
Groundingrequirements............6
Safetynotices(multi-lingualtranslations).....6
Chapter3.Generalinformation....29
Specifications...............29
LenovoSupportWebsite..........30
Chapter4.Generalcheckout.....31
Problemdeterminationtips..........31
Chapter5.Troubleshootingand
diagnostics..............33
Basictroubleshooting............33
AccessingControlPanelontheWindows8
operatingsystem..............34
Troubleshootingprocedure..........34
Troubleshooting..............35
Audioproblems............35
CDproblems.............37
DVDproblems.............38
Intermittentproblems..........39
Harddiskdriveproblems.........39
Keyboard,mouse,orpointingdevice
problems...............40
Monitorproblems............42
Networkingproblems..........43
Optionproblems............46
Performanceandlockupproblems.....47
Printerproblems............49
Serialportproblems...........49
Softwareproblems...........50
USBproblems.............51
Diagnostics................51
LenovoSolutionCenter.........51
Chapter6.UsingtheSetupUtility
program................53
StartingtheSetupUtilityprogram.......53
Viewingandchangingsettings........53
Usingpasswords..............53
Passwordconsiderations.........54
Power-OnPassword..........54
AdministratorPassword.........54
HardDiskPassword...........54
Setting,changing,anddeletingapassword.54
Erasinglostorforgottenpasswords(clearing
CMOS)................55
Enablingordisablingadevice........55
Selectingastartupdevice..........55
Selectingatemporarystartupdevice....55
Selectingorchangingthestartupdevice
sequence...............56
EnablingErPcompliancemode........56
ChangingtheBIOSsettingsbeforeinstallinganew
operatingsystem..............57
ExitingtheSetupUtilityprogram.......57
Chapter7.Symptom-to-FRUindex..59
Harddiskdrivebooterror..........59
Powersupplyproblems...........59
Beepsymptoms..............59
POSTerrorcodes.............60
Miscellaneouserrormessages........62
Undeterminedproblems...........63
Chapter8.Locations.........65
Locations.................65
Locatingconnectors,controls,andindicators
onthefrontofyourcomputer.......65
Locatingconnectorsontherearofyour
computer...............65
LocatingmajorFRUsandCRUs......66
Locatingpartsonthesystemboard....67
Locatinginternaldrives.........67
Chapter9.ReplacingFRUs......69
Handlingstatic-sensitivedevices.......69
Installingorreplacinghardware........69
Removingthecomputercover.......70
Removingandreinstallingthefrontbezel..71
InstallingorreplacingaPCIcard......72
Replacingthebattery..........75
Installingorreplacingamemorymodule...76
Replacingtheopticaldrive........78
Replacingtheheatsinkandfanassembly..80
Replacingthepowersupplyassembly...82
©CopyrightLenovo2013i
Replacingthemicroprocessor.......83
Replacingthesystemboard.......85
Replacingtheprimaryharddiskdrive....87
ReplacingthefrontaudioandUSB
assembly...............89
Completingthepartsreplacement.....90
Chapter10.FRUlists.........93
Chapter11.Additionalserice
information..............97
Securityfeatures..............97
Hardware-controlledpasswords......97
Operatingsystempassword.......97
VitalProductData...........97
BIOSlevels................97
Flashupdateprocedures..........97
Updating(flashing)theBIOSfromadisc...98
Updating(flashing)theBIOSfromyour
operatingsystem............99
RecoveringfromaPOSTandBIOSupdate
failure................99
Powermanagement............100
AdvancedConfigurationandPowerInterface
(ACPI)BIOS..............100
AutomaticPower-onfeatures.......100
AppendixA.Notices.........101
Televisionoutputnotice...........102
EuropeanconformanceCEmark.......102
Trademarks................102
Index.................103
iiLenovoH520eHardwareMaintenanceManual
Chapter1.Aboutthismanual
ThismanualprovidesserviceandreferenceinformationforLenovo®computerslistedonthefrontcover.
ThismanualisintendedonlyfortrainedservicepersonnelwhoarefamiliarwithLenovocomputerproducts.
BeforeservicingaLenovocomputerproduct,besuretoreadChapter2Safetyinformation”onpage3.
Chapter7Symptom-to-FRUindex”onpage59andChapter11Additionalserviceinformation”onpage97
arenotspecifictoanymachinetype.ThesechaptersareapplicabletoallLenovoH520gcomputers.
FormajorFRUlocationsandCustomerReplaceableUnit(CRU)identification,seeChapter8Locations”
onpage65.
ForFRUreplacementinstructions,seeChapter9ReplacingFRUs”onpage69.
Importantsafetyinformation
Besuretoreadallcautionanddangerstatementsinthismanualbeforeperforminganyoftheinstructions.
VeuillezliretouteslesconsignesdetypeDANGERetATTENTIONduprésentdocumentavantd'exécuter
lesinstructions.
LesenSieunbedingtalleHinweisevomTyp"ACHTUNG"oder"VORSICHT"indieserDokumentation,bevor
SieirgendwelcheVorgängedurchführen
LeggereleistruzioniintrodottedaATTENZIONEePERICOLOpresentinelmanualeprimadieseguireuna
qualsiasidelleistruzioni
Certifique-sedelertodasasinstruçõesdecuidadoeperigonestemanualantesdeexecutarqualquer
umadasinstruções
Esimportantequeleatodaslasdeclaracionesdeprecauciónydepeligrodeestemanualantesdeseguir
lasinstrucciones.
©CopyrightLenovo20131
2LenovoH520eHardwareMaintenanceManual
Chapter2.Safetyinformation
Thischaptercontainsthesafetyinformationthatyouneedtobefamiliarwithbeforeservicingacomputer.
Generalsafety
Followtheserulestoensuregeneralsafety:
•Observegoodhousekeepingintheareaofthemachinesduringandaftermaintenance.
•Whenliftinganyheavyobject:
1.Ensureyoucanstandsafelywithoutslipping.
2.Distributetheweightoftheobjectequallybetweenyourfeet.
3.Useaslowliftingforce.Nevermovesuddenlyortwistwhenyouattempttolift.
4.Liftbystandingorbypushingupwithyourlegmuscles;thisactionremovesthestrainfromthe
musclesinyourback.Donotattempttoliftanyobjectsthatweighmorethan16kg(35lb)orobjects
thatyouthinkaretooheavyforyou.
•Donotperformanyactionthatcauseshazardstothecustomer,orthatmakestheequipmentunsafe.
•Beforeyoustartthemachine,ensurethatotherservicerepresentativesandthecustomer'spersonnelare
notinahazardousposition.
•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.
Electricalsafety
CAUTION:
Electricalcurrentfrompower,telephone,andcommunicationcablescanbehazardous.Toaoid
personalinjuryorequipmentdamage,disconnecttheattachedpowercords,telecommunication
systems,networks,andmodemsbeforeyouopenthecentrecoers,unlessinstructedotherwisein
theinstallationandconfigurationprocedures.
Observethefollowingruleswhenworkingonelectricalequipment.
©CopyrightLenovo20133
Important:Useonlyapprovedtoolsandtestequipment.Somehandtoolshavehandlescoveredwithasoft
materialthatdoesnotinsulateyouwhenworkingwithliveelectricalcurrents.Manycustomershave,near
theirequipment,rubberfloormatsthatcontainsmallconductivefiberstodecreaseelectrostaticdischarges.
Donotusethistypeofmattoprotectyourselffromanelectricshock.
•Findtheroomemergencypower-off(EPO)switch,disconnectingswitch,orelectricaloutlet.Ifanelectrical
accidentoccurs,youcanthenoperatetheswitchorunplugthepowercordquickly.
•Donotworkaloneunderhazardousconditionsornearequipmentthathashazardousvoltages.
•Disconnectallpowerbefore:
–Performingamechanicalinspection
–Workingnearpowersupplies
–RemovingorinstallingFieldReplaceableUnits(FRU)
•Beforeyoustarttoworkonthemachine,unplugthepowercord.Ifyoucannotunplugit,askthecustomer
topower-offthewallboxthatsuppliespowertothemachineandtolockthewallboxintheoffposition.
•Ifyouneedtoworkonamachinethathasexposedelectricalcircuits,observethefollowingprecautions:
–Ensurethatanotherperson,familiarwiththepower-offcontrols,isnearyou.
Remember:Anotherpersonmustbetheretoswitchoffthepower,ifnecessary.
–Useonlyonehandwhenworkingwithpowered-onelectricalequipment;keeptheotherhandinyour
pocketorbehindyourback.
Remember:Theremustbeacompletecircuittocauseanelectricshock.Byobservingtheabove
rule,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.
4LenovoH520eHardwareMaintenanceManual
Voltage-selectionswitch
Somecomputersareequippedwithavoltage-selectionswitchlocatednearthepower-cordconnection
pointonthecomputer.Ifyourcomputerhasavoltage-selectionswitch,ensurethatyousettheswitchto
matchthevoltageavailableatyourelectricaloutlet.Settingthevoltage-selectionswitchincorrectlycan
causepermanentdamagetothecomputer.
Ifyourcomputerdoesnothaveavoltage-selectionswitch,yourcomputerisdesignedtooperateonlyatthe
voltageprovidedinthecountryorregionwherethecomputerwasoriginallypurchased.
Ifyourelocateyourcomputertoanothercountry,beawareofthefollowing:
•Ifyourcomputerdoesnothaveavoltage-selectionswitch,donotconnectthecomputertoanelectrical
outletuntilyouhaveverifiedthatthevoltageprovidedisthesameasitwasinthecountryorregion
wherethecomputerwasoriginallypurchased.
•Ifyourcomputerhasavoltage-selectionswitch,donotconnectthecomputertoanelectricaloutletuntil
youhaveverifiedthatthevoltage-selectionswitchissettomatchthevoltageprovidedinthatcountry
orregion.
Ifyouarenotsureofthevoltageprovidedatyourelectricaloutlet,contactyourlocalelectriccompanyor
refertoofficialWebsitesorotherliteraturefortravelerstothecountryorregionwhereyouarelocated.
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.
Chapter2.Safetyinformation5
5.Checkforanyobviousalterations.Usegoodjudgmentastothesafetyofanyalterations.
6.Checkinsidetheunitforanyobviousunsafeconditions,suchasmetalfilings,contamination,wateror
otherliquids,orsignsoffireorsmokedamage.
7.Checkforworn,frayed,orpinchedcables.
8.Checkthatthepower-supplycoverfasteners(screwsorrivets)havenotbeenremovedortamperedwith.
Handlingelectrostaticdischarge-sensitiedeices
Anycomputerpartcontainingtransistorsorintegratedcircuits(ICs)shouldbeconsideredsensitiveto
electrostaticdischarge(ESD).ESDdamagecanoccurwhenthereisadifferenceinchargebetweenobjects.
ProtectagainstESDdamagebyequalizingthechargesothatthemachine,thepart,theworkmat,andthe
personhandlingthepartareallatthesamecharge.
Notes:
1.Useproduct-specificESDprocedureswhentheyexceedtherequirementsnotedhere.
2.MakesurethattheESDprotectivedevicesyouusehavebeencertified(ISO9000)asfullyeffective.
WhenhandlingESD-sensitiveparts:
•Keepthepartsinprotectivepackagesuntiltheyareinsertedintotheproduct.
•Avoidcontactwithotherpeoplewhilehandlingthepart.
•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)
6LenovoH520eHardwareMaintenanceManual