Lenovo ThinkPad E555 User Manual Page 68
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•Logiccardtoplastic
Turnanadditionalangleof180degreesafterthescrewheadtouchesthesurfaceofthelogiccard.
Notes:
•Ensurethatyouusethecorrectscrew.Itisrecommendedtousenewscrewsforreplacements.Ifyou
haveatorquescrewdriver,tightenallscrewsfirmlytothetorquespecifiedinthescrewinformation
tableforeachstep.
•Ensuretorquescrewdriversarecalibratedcorrectlyfollowingcountryspecifications.
Retainingserialnumbers
Thistopicprovidesinstructionsonthefollowing:
•“Restoringtheserialnumberofthesystemunit”onpage62
•“RetainingtheUUID”onpage63
Restoringtheserialnumberofthesystemunit
Whenthecomputerwasmanufactured,theEEPROMonthesystemboardwasloadedwiththeserial
numbersofthesystemandallmajorcomponents.Thesenumbersneedtoremainthesamethroughout
thelifeofthecomputer.
Ifyoureplacethesystemboard,youmustrestoretheserialnumberofthesystemunittoitsoriginalvalue.
Theserialnumberofthesystemunitiswrittenonthelabelattachedtothebottomofthecomputer.
Ifyoucannotfindtheserialnumberofthesystemunitonthebottomofthecomputer,trythefollowing
methodtogetthenumber:
Note:Beforeyouperformtheoperation,ensurethattheUEFI/LegacysettingwithintheStartupmenuin
theThinkPadSetupprogramissettoUEFIOnly.
1.ConnectaUSBmemorykeytothecomputer.
2.Gotohttp://www.lenovo.com/maintenanceutilitiesandfollowtheinstructionsonthescreentocreatea
Maintenancekey.
Note:OnlyanauthorizedLenovoservicetechniciancanaccesstheaboveWebsite.
3.Restartthecomputer.
4.Whenthelogoisdisplayed,pressEsc.TheThinkPadConfigInformationUpdateUtilityinterfaceis
displayed.
5.T ype1underEntertheactiondesired,thenpressEnter.TheThinkPadSerialNumberUpdateUtilityfor
AssetIDscreenisdisplayed.
6.T ype2underEntertheactiondesired,thenpressEnter.Theserialnumberofeachdeviceinyour
computerisdisplayed;theserialnumberofthesystemunitislistedasfollow:
20-Serialnumber
7.Recordtheserialnumberofthesystemunit.
62HardwareMaintenanceManual
- HardwareMaintenanceManual 1
- FirstEdition(August2014) 2
- Contents 3
- Chapter9.Removingorreplacinga 4
- FRU..................65 4
- AppendixA.Notices..........97 4
- AppendixB.Abbreviationand 4
- Aboutthismanual 5
- Chapter1.Safetyinformation 7
- Electricalsafety 8
- Safetyinspectionguide 9
- Groundingrequirements 10
- Chapter1.Safetyinformation5 11
- 6HardwareMaintenanceManual 12
- .Safetyinformation7 13
- Chapter1.Safetyinformation9 15
- VORSICHT 17
- .Safetyinformation11 17
- 12HardwareMaintenanceManual 18
- .Safetyinformation13 19
- 14HardwareMaintenanceManual 20
- .Safetyinformation15 21
- 16HardwareMaintenanceManual 22
- .Safetyinformation17 23
- .Safetyinformation19 25
- 20HardwareMaintenanceManual 26
- .Safetyinformation21 27
- 22HardwareMaintenanceManual 28
- .Safetyinformation23 29
- 24HardwareMaintenanceManual 30
- StrategyforreplacingFRUs 31
- Howtouseerrorcodes 32
- Productdefinition 32
- FRUidentification 32
- 28HardwareMaintenanceManual 34
- Chapter3.Generalcheckout 35
- Checkoutguide 36
- LenovoSolutionCenter 36
- Quicktestprograms 36
- UEFIdiagnosticprogram 37
- Bootablediagnosticprograms 38
- Powersystemcheckout 39
- Checkingtheacpoweradapter 39
- Checkingoperationalcharging 39
- Checkingthebatterypack 40
- Checkingthecoin-cellbattery 40
- .Generalcheckout35 41
- 36HardwareMaintenanceManual 42
- Refreshingyourcomputer 44
- Creatingandusingrecoverymedia 46
- Passwords 47
- Power-onpassword 47
- Harddiskpassword 47
- Supervisorpassword 48
- Powermanagement 49
- Sleepmode 49
- Hibernationmode 50
- Symptom-to-FRUindex 50
- Numericerrorcodes 51
- Errormessages 52
- Beepsymptoms 53
- No-beepsymptoms 53
- LCD-relatedsymptoms 53
- Intermittentproblems 54
- Undeterminedproblems 54
- Chapter5.Statusindicators 55
- 50HardwareMaintenanceManual 56
- Chapter6.Specialkeys 57
- 52HardwareMaintenanceManual 58
- Chapter7.Locations 59
- Rearview 60
- Bottomview 60
- LocatingFRUsandCRUs 60
- •“LCDFRUsandCRUs”onpage58 61
- .Locations55 61
- MajorFRUsandCRUs 62
- .Locations57 63
- LCDFRUsandCRUs 64
- MiscellaneouskitsandotherFRUs 65
- LookingupFRUinformation 65
- 60HardwareMaintenanceManual 66
- Screwnotices 67
- Retainingserialnumbers 68
- RetainingtheUUID 69
- 64HardwareMaintenanceManual 70
- Generalguidelines 71
- 1020Batterypack 72
- 1030Largebottomcover 73
- 1040Smallbottomcover 74
- StepScrew(quantity)Color 75
- (1.85kgf-cm) 75
- 1060Memorymodule 76
- 1080WirelessLANcard 78
- 1110Keyboard 79
- 1090Coin-cellbattery 79
- Removalstepsofthekeyboard 80
- 74HardwareMaintenanceManual 80
- 1120Keyboardbezelassembly 81
- 76HardwareMaintenanceManual 82
- 1130Systemboardandthermalfan 83
- .RemovingorreplacingaFRU79 85
- Removalstepsofthethermalfan 86
- Wheninstalling: 86
- 80HardwareMaintenanceManual 86
- Black0.181Nm 88
- 1160Speakerassembly 89
- 1170LCDunit 90
- 1180Basecoverassembly 93
- 2010LCDbezel 96
- 2020LCDpanel 96
- 2030LCDhinges 98
- 2040Camera/microphonemodule 99
- 2050LCDcables 100
- AppendixA.Notices 103
- Electronicemissionnotices 104
- Trademarks 104
- ©CopyrightLenovo2014 105
- 100HardwareMaintenanceManual 106
- *1PSP40A27128* 108
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