Lenovo B470E User Manual Page 41
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- Table of contents
- TROUBLESHOOTING
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Problem
Solution
•Yourcomputermightlockwhenitenterssleepmode
duringacommunicationoperation.Disablethesleep
timerwhenyouareworkingonthenetwork.
Thecomputerdoesnotstartfromadeviceyouwant.
1.CheckthesettingsunderBootmenuoftheBIOS.
MakesurethattheBootPriorityOrderoptionstarts
fromthedeviceyouwant.
2.Alsomakesurethatthedevicefromwhichthe
computerstartsisenabled.UndertheBootmenu,
makesurethatthedeviceisincludedintheBoot
PriorityOrderlist.
3.PressF12whentheLenovologoappearsonthe
screenwhilethecomputerisstartinguptoselectthe
deviceyouwantthecomputerstartsfrom.
Theconnectedexternaldevicedoesnotwork.Makesurethat:
•Donotconnectordisconnectanyexternaldevice
cablesotherthanUSBcableswhilethecomputer
isturnedon;otherwise,youmightdamageyour
computer.
•Whenusingahighpowerconsumptionexternal
devicessuchasanexternalUSBopticaldrive,use
externaldevicepoweradapter.Otherwise,thedevice
maynotberecognized,orthesystemmightbeturned
off.
Formoretechnicalsupport,pleasegoto
http://consumersupport.lenovo.com
Chapter5.Troubleshooting27
- UserGuide 1
- Contents 3
- Readthisrst 5
- Importantsafetyinformation 6
- Safetyguidelines 7
- Powercordsandpoweradapters 8
- Plugsandoutlets 8
- Powersupplystatement 9
- Externaldevices 9
- Generalbatterynotice 9
- Rechargeablebatterynotice 10
- Lithiumcoincellbatterynotice 10
- Heatandproductventilation 11
- Lasercompliancestatement 12
- Usingheadphonesorearphones 13
- Additionalsafetyinformation 13
- ©CopyrightLenovo2011,2012 15
- Left-sideview 16
- Right-sideview 17
- Frontview 17
- Bottomview 18
- Specications 18
- 6UserGuide 20
- Chapter2.Learningthebasics 21
- Usingacpoweradapterandbattery 22
- Checkingbatterystatus 22
- Chargingthebattery 22
- Removingthebatterypack 23
- Handlingthebattery 23
- Usingthetouchpad 24
- Usingthekeyboard 24
- Numerickeypad 24
- Functionkeycombinations 25
- Connectingexternaldevices 26
- Specialkeysandbuttons 27
- Systemstatusindicators 27
- Securingyourcomputer 28
- Usingpasswords 29
- 16UserGuide 30
- Wiredconnection 31
- Hardwareconnection 31
- Softwareconguration 32
- Wirelessconnection 32
- 20UserGuide 34
- 22UserGuide 36
- Chapter5.Troubleshooting 37
- Troubleshooting 38
- Displayproblems 38
- Apasswordproblem 38
- Sleeporhibernationproblems 39
- Computerscreenproblems 39
- Soundproblems 39
- Batteryproblems 40
- Aharddiskdriveproblem 40
- Astartupproblem 40
- OneKeyRescuesystemproblems 40
- Otherproblems 40
- .Troubleshooting27 41
- 28UserGuide 42
- AppendixA.CRUinstructions 43
- Replacingtheharddiskdrive 44
- 4inthefollowingillustration 45
- AppendixA.CRUinstructions31 45
- Replacingamemorymodule 46
- AppendixA.CRUinstructions33 47
- 34UserGuide 48
- Wirelessrelatedinformation 49
- Exportclassicationnotice 50
- Electronicemissionsnotices 50
- ChinaWEEEstatement 53
- ImportantWEEEinformation 53
- Japanrecyclingstatements 53
- RecyclinginformationforBrazil 54
- Trademarks 55
- 42UserGuide 56
- ChinaRoHS 57
- TurkishRoHS 57
- UkraineRoHS 57
- IndiaRoHS 58
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