Lenovo H520e Desktop User Manual Page 103
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- Table of contents
- TROUBLESHOOTING
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Updating(flashing)theBIOSfromyouroperatingsystem
Note:BecauseLenovomakesconstantimprovementstoitsWebsites,theWebpagecontentsaresubject
tochangewithoutnotice,includingthecontentsreferencedinthefollowingprocedure.
Toupdate(flash)theBIOSfromyouroperatingsystem,dothefollowing:
1.Gotohttp://www.lenovo.com/support.
2.Dothefollowingtolocatethedownloadablefilesforyourmachinetype:
a.ClickDownload&Drivers.
b.Intheleftpane,clickDownloadsanddrivers.
c.FromtheBranddrop-downlistbox,selectDesktops.
d.FromtheFamilydrop-downlistbox,selectthefamilyname.
e.ClickContinue.
f.FromtheRefineresultsdrop-downlistbox,selectBIOS.
g.ClicktheBIOSupdatelink.
3.ClicktheTXTfilethatcontainstheinstructionsforupdating(flashing)theBIOSfromyouroperating
system.
4.Printtheseinstructions.Thisisveryimportantbecausetheseinstructionswillnotbedisplayedon
thescreenafterthedownloadbegins.
5.Followtheprintedinstructionstodownload,extract,andinstalltheupdate.
RecoveringfromaPOSTandBIOSupdatefailure
IfthepowertoyourcomputerisinterruptedwhilethePOSTandBIOSisbeingupdated,yourcomputer
mightnotrestartcorrectly.Ifthishappens,performthefollowingproceduretorecoverfromthePOSTand
BIOSupdatefailure.ThisprocedureiscommonlycalledBoot-blockRecovery.
1.Removeallmediafromthedrivesandturnoffallattacheddevicesandthecomputer.Then,disconnect
allpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothecomputer.
2.Removethecomputercover.See“Removingthecomputercover”onpage70.
3.LocatetheClearCMOS/Recoveryjumperonthesystemboard.See“Locatingpartsonthesystem
board”onpage67
.
4.RemoveanypartsanddisconnectanycablesthatmightpreventyouraccesstotheClearCMOS
/Recoveryjumper.
5.Movethejumperfromthestandardposition(pin1andpin2)tothemaintenanceposition(pin2and
pin3).
6.Reinstallanypartsandreconnectanycablesthathavebeenremovedordisconnected.
7.Reinstallthecomputercoverandreconnectthepowercordsforthecomputerandmonitor.See
“Completingthepartsreplacement”onpage90.
8.TurnonthecomputerandtheninsertthePOSTandBIOSupdate(flashupdate)discintotheoptical
drive.Waitafewminutes.Then,therecoverysessionbegins.Therecoverysessionwilltaketwoto
threeminutes.Duringthistime,awarningmessagewillbedisplayedandnoactionisneededfromyou.
9.Aftertherecoverysessioniscompleted,therewillbenovideo,andyourcomputerwillautomatically
turnoff.
10.Repeatstep1throughstep4.
11.Movethejumperbacktothestandardposition(pin1andpin2).
12.Reinstallanypartsandreconnectanycablesthathavebeenremovedordisconnected.
13.Reinstallthecomputercoverandreconnectpowercordsandallotherexternalcables.See“Completing
thepartsreplacement”onpage90
.
Chapter11.Additionalserviceinformation99
- MachineTypes:90AM 1
- FirstEdition(January2013) 2
- Contents 3
- Chapter10.FRUlists.........93 4
- Chapter11.Additionalservice 4
- AppendixA.Notices.........101 4
- Index.................103 4
- Chapter1.Aboutthismanual 5
- Chapter2.Safetyinformation 7
- Voltage-selectionswitch 9
- Safetyinspectionguide 9
- Groundingrequirements 10
- Chapter2.Safetyinformation7 11
- .Safetyinformation9 13
- Chapter2.Safetyinformation11 15
- .Safetyinformation13 17
- .Safetyinformation15 19
- Chapter2.Safetyinformation17 21
- ≥18kg≥32kg≥55kg 23
- .Safetyinformation21 25
- Chapter2.Safetyinformation25 29
- Chapter3.Generalinformation 33
- LenovoSupportWebsite 34
- Chapter4.Generalcheckout 35
- Basictroubleshooting 37
- Troubleshootingprocedure 38
- Troubleshooting 39
- Audioproblems 39
- NoaudioinWindows 40
- CDproblems 41
- DVDproblems 42
- Intermittentproblems 43
- Harddiskdriveproblems 43
- Monitorproblems 46
- Networkingproblems 47
- AwirelessLANproblem 49
- AwirelessWANproblem 49
- Optionproblems 50
- Performanceandlockupproblems 51
- Printerproblems 53
- Serialportproblems 53
- Softwareproblems 54
- USBproblems 55
- Diagnostics 55
- LenovoSolutionCenter 55
- Viewingandchangingsettings 57
- Usingpasswords 57
- Passwordconsiderations 58
- Power-OnPassword 58
- AdministratorPassword 58
- HardDiskPassword 58
- Enablingordisablingadevice 59
- Selectingastartupdevice 59
- EnablingErPcompliancemode 60
- ExitingtheSetupUtilityprogram 61
- Chapter7.Symptom-to-FRUindex 63
- POSTerrorcodes 64
- .Symptom-to-FRUindex61 65
- Miscellaneouserrormessages 66
- Undeterminedproblems 67
- Chapter8.Locations 69
- LocatingmajorFRUsandCRUs 70
- Locatingpartsonthesystemboard 71
- Locatinginternaldrives 71
- Figure5.Drivebaylocations 72
- Chapter9.ReplacingFRUs 73
- Removingthecomputercover 74
- Attention: 75
- Figure7.Removingthefrontbezel 75
- InstallingorreplacingaPCIcard 76
- .ReplacingFRUs73 77
- Figure10.RemovingaPCIcard 78
- Replacingthebattery 79
- .ReplacingFRUs77 81
- Replacingtheopticaldrive 82
- .ReplacingFRUs79 83
- Chapter9.ReplacingFRUs81 85
- Replacingthemicroprocessor 87
- 2onthemicroprocessor 88
- Replacingthesystemboard 89
- Completingthepartsreplacement 94
- Chapter9.ReplacingFRUs91 95
- Chapter10.FRUlists 97
- .FRUlists95 99
- ©CopyrightLenovo2013 101
- Powermanagement 104
- AutomaticPower-onfeatures 104
- AppendixA.Notices 105
- Televisionoutputnotice 106
- EuropeanconformanceCEmark 106
- Trademarks 106
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