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•Problem:Theadapterstopsworkingfornoapparentreason.
Solution:Thenetworkdriverfilesmightbecorruptormissing.Updatethedriverbyreferringtotheabove
solutionfortheproceduretomakesurethatthecorrectdevicedriverisinstalled.
•Problem:IfyourcomputerisaGigabitEthernetmodelandyouuseaspeedof1000Mbps,the
connectionfailsorerrorsoccur.
Solution:
–UseCategory5wiringandmakesurethatthenetworkcableissecurelyconnected.
–Connecttoa1000BASE-Thub/switch(not1000BASE-X).
•Problem:TheWakeonLANfeatureisnotworking.
Solution:
–MakesurethatWakeonLANisenabledinThinkPadSetup.
–Ifitis,checkwithyourLANadministratorforthenecessarysettings.
•Problem:IfyourcomputerisaGigabitEthernetmodel,itcannotconnecttothenetworkat1000Mbps.
Instead,itconnectsat100Mbps.
Solution:
–Tryanothercable.
–Makesurethatthelinkpartnerissettoauto-negotiate.
–Makesurethattheswitchis802.3ab-compliant(gigabitovercopper).
AwirelessLANproblem
Problem:Icannotconnecttothenetworkusingthebuilt-inwirelessnetworkcard.
Solution:Makesurethat:
•YourwirelessLANdriveristhelatestversion.
•Yourcomputeriswithinrangeofawirelessaccesspoint.
•Thewirelessradioisenabled.
Note:IfyouareusingtheWindows7operatingsystem,clickShowhiddeniconsontheWindows
notificationarea.TheAccessConnectionsiconisdisplayed.Formoreinformationabouttheicon,referto
theAccessConnectionshelpinformationsystem.
FortheWindows7operatingsystem,checktheNetworkName(SSID)andyourencryptioninformation.Use
theAccessConnectionsprogramtoverifythiscase-sensitiveinformation.
AwirelessWANproblem
Problem:AmessageisdisplayedindicatingthatanunauthorizedWANcardisinstalled.
Solution:TheWANcardisnotsupportedonthiscomputer.RemovetheWANcard.
Note:SomemodelsdonothaveawirelessWANcard.
Bluetoothproblems
Note:CheckyourconnectionanytimeandmakesurethatnootherBluetooth-enableddeviceissearchingfor
thedevicetowhichyouwanttoconnect.SimultaneoussearchingisnotallowedintheBluetoothconnection.
Chapter10.Troubleshootingcomputerproblems137
- UserGuide 1
- SecondEdition(January2014) 2
- ©CopyrightLenovo2013,2014 2
- Contents 3
- Readthisfirst 7
- Importantsafetyinformation 8
- Safetyguidelines 9
- Powercordsandpoweradapters 10
- Plugsandoutlets 11
- Powersupplystatement 11
- Externaldevices 12
- Generalbatterynotice 12
- Rechargeablebatterynotice 12
- Lithiumcoin-cellbatterynotice 13
- Heatandproductventilation 13
- Lasercompliancestatement 15
- Usingheadphonesorearphones 15
- Additionalsafetyinformation 16
- Chapter1.Productoverview 17
- TrackPoint 18
- Systemstatusindicator 18
- Powerbutton 18
- ThinkPadEdgeE540frontview 19
- Right-sideview 21
- Left-sideview 22
- Fanlouvers(left) 23
- ThinkPadEdgeE540left-sideview 24
- Bottomview 25
- Rearview 26
- Statusindicators 26
- Machinetypeandmodellabel 28
- CertificateofAuthenticitylabel 29
- GenuineMicrosoftlabel 30
- Features 30
- Specifications 31
- Operatingenvironment 32
- Lenovoprograms 33
- Lenovoprogramsoverview 35
- Chapter2.Usingyourcomputer 37
- Usingthemulti-touchscreen 39
- 24UserGuide 40
- .Usingyourcomputer25 41
- Specialkeys 42
- ThinkPadEdgeE440specialkeys 43
- ThinkPadEdgeE540specialkeys 44
- 2Numerickeypad 45
- 3Windowskey 45
- 4Functionkeys 45
- Chapter2.Usingyourcomputer29 45
- 1andtheThinkPadtrackpad2.The 46
- 3andright 46
- Powermanagement 47
- Checkingthebatterystatus 48
- Usingtheacpoweradapter 48
- Chargingthebattery 49
- Maximizingthebatterylife 49
- Managingthepowerplans 49
- Power-savingmodes 49
- Handlingthebattery 51
- Connectingtothenetwork 52
- Ethernetconnections 52
- Wirelessconnections 52
- UsingthewirelessLANconnection 53
- UsingthewirelessWANconnection 54
- UsingBluetooth 55
- Presentationsandmultimedia 56
- Changingdisplaysettings 56
- Usinganexternalmonitor 56
- Usingaprojector 57
- Usingdualdisplays 58
- Usingaudiofeatures 59
- Usingthecamera 59
- Usingtheopticaldrive 60
- Usingaflashmediacard 60
- Insertingaflashmediacard 60
- Removingaflashmediacard 61
- 46UserGuide 62
- Chapter3.Youandyourcomputer 63
- Accessibilityinformation 64
- Travelingwithyourcomputer 65
- Traveltips 65
- Travelaccessories 65
- Chapter4.Security 67
- Supervisorpassword 68
- Chapter4.Security53 69
- Harddiskpasswords 70
- Harddisksecurity 71
- Usingthefingerprintreader 72
- Chapter4.Security57 73
- Usingfirewalls 75
- Protectingdataagainstviruses 75
- 60UserGuide 76
- Chapter5.Recoveryoverview 77
- Chapter5.Recoveryoverview63 79
- Creatingandusingarescuemedium 80
- Solvingrecoveryproblems 81
- Refreshingyourcomputer 82
- Chapter5.Recoveryoverview67 83
- Creatingandusingrecoverymedia 84
- Chapter5.Recoveryoverview69 85
- 70UserGuide 86
- Chapter6.Replacingdevices 87
- ReplacingtheSIMcard 89
- Replacingthekeyboard 90
- Chapter6.Replacingdevices75 91
- 76UserGuide 92
- Chapter6.Replacingdevices77 93
- 78UserGuide 94
- .Replacingdevices79 95
- 80UserGuide 96
- .Replacingdevices83 99
- Installingthekeyboard 100
- 84UserGuide 100
- .Replacingdevices85 101
- 86UserGuide 102
- Chapter6.Replacingdevices87 103
- 1,andthenremovethecover2 104
- .Replacingdevices89 105
- Replacingtheopticaldrive 106
- ThinkPadEdgeE440 106
- 5.Removethescrew 107
- 6.Pullouttheopticaldrive 107
- .Replacingdevices91 107
- ThinkPadEdgeE540 108
- 5.Pullouttheopticaldrive 109
- .Replacingdevices93 109
- ReplacingawirelessLANcard 110
- Chapter6.Replacingdevices95 111
- 1.Pivotthecarduntilyoucan 112
- 1.Thentightenthescrews2 112
- ReplacingawirelessWANcard 113
- Replacingamemorymodule 115
- Chapter6.Replacingdevices101 117
- Replacingthecoin-cellbattery 118
- 1.Thenattachtheconnector2 119
- 1.Thentightenthescrew2 119
- Chapter6.Replacingdevices103 119
- 104UserGuide 120
- FindingThinkPadoptions 121
- ThinkPadOneLinkDock 121
- ThinkPadOneLinkProDock 122
- Chapter8.Advancedconfiguration 125
- Installingdevicedrivers 127
- UsingtheThinkPadSetupprogram 127
- Mainmenu 128
- Configmenu 128
- .Advancedconfiguration113 129
- 114UserGuide 130
- .Advancedconfiguration115 131
- DateandTimemenu 132
- Securitymenu 132
- .Advancedconfiguration117 133
- 118UserGuide 134
- .Advancedconfiguration119 135
- 120UserGuide 136
- Startupmenu 137
- 122UserGuide 138
- Restartmenu 139
- UpdatingyoursystemUEFIBIOS 139
- 124UserGuide 140
- Chapter9.Preventingproblems 141
- Takingcareofyourcomputer 143
- 130UserGuide 146
- Diagnosingproblems 147
- Troubleshooting 147
- Computerstopsresponding 147
- Spillsonthekeyboard 148
- Errormessages 148
- Errorswithoutmessages 150
- Beeperrors 151
- Memorymoduleproblems 152
- Networkingproblems 152
- AwirelessLANproblem 153
- AwirelessWANproblem 153
- Bluetoothproblems 153
- Keyboardproblems 154
- Computerscreenproblems 155
- Externalmonitorproblems 156
- Audioproblems 158
- Fingerprintreaderproblems 160
- Batteryandpowerproblems 160
- Powerproblems 161
- Apowerbuttonproblem 161
- Bootproblems 161
- Sleepandhibernationproblems 162
- Harddiskdriveproblems 163
- Asolid-statedriveproblem 163
- Opticaldriveproblems 163
- Asoftwareproblem 164
- AUSBproblem 165
- Adockproblem 165
- 150UserGuide 166
- Chapter11.Gettingsupport 167
- Usingdiagnosticprograms 168
- LenovoSupportWebsite 168
- CallingLenovo 168
- Purchasingadditionalservices 169
- 154UserGuide 170
- Wirelessrelatedinformation 171
- Exportclassificationnotice 173
- Electronicemissionnotices 173
- Directive 174
- 160UserGuide 176
- ImportantWEEEinformation 177
- Japanrecyclingstatements 177
- RecyclinginformationforBrazil 178
- RecyclinginformationforChina 179
- 164UserGuide 180
- ©CopyrightLenovo2013 181
- AppendixD.Notices 183
- Trademarks 184
- EuropeanUnionRoHS 185
- ChinaRoHS 185
- IndiaRoHS 185
- TurkishRoHS 185
- UkraineRoHS 186
- 172UserGuide 188
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