User's Manual

Table Of Contents
Solution:Dothefollowing:
1.Ensurethattheconnectionoftheacpoweradapteriscorrect.
2.Iftheconnectionoftheacpoweradapteriscorrect,turnoffthecomputer,andthendisconnecttheac
poweradapter.
3.Reconnecttheacpoweradapter,andthenturnonthecomputer.
4.IfthepoweradaptericonstillisnotdisplayedintheWindowsnotificationarea,havetheacpower
adapterandyourcomputerserviced.
Powerproblems
Printtheseinstructionsnowandkeepthemwithyourcomputerforreferencelater.
Problem:Mycomputerisgettingnopoweratall.
Solution:Checkthefollowingitems:
1.Verifythepowerbutton.Thepowerbuttonisilluminatedwheneverthecomputerison.
2.Checkallpowerconnections.Removeanypowerstripsandsurgeprotectorstoconnecttheac
poweradapterdirectlytotheacpoweroutlet.
3.Inspecttheacpoweradapter.Checkforanyphysicaldamage,andensurethatthepowercableis
firmlyattachedtotheadapterbrickandthecomputer.
4.Verifythattheacpowersourceisworkingbyattachinganotherdevicetotheoutlet.
Problem:Mycomputerdoesnotrunonbatterypower.
Solution:Checkthefollowingitems:
1.Ifthebatteryrunsoutofpower,attachtheacpoweradaptertorechargethebattery.
2.Ifthebatteryischargedbutthecomputerdoesnotrun,contactLenovotoreplacethebattery
withanewone.
Problem:Thesystemdoesnotrespond,andIcannotturnoffthecomputer.
Solution:Turnoffthecomputerbypressingandholdingthepowerbuttonforfoursecondsormore.If
thesystemstilldoesnotrespond,removetheacpoweradapter.Thenresetthesystembyinsertinga
straightenedpaperclipintotheemergency-resethole.
Powerbuttonproblem
Problem:Thesystemdoesnotrespond,andIcannotturnoffthecomputer.
Solution:Turnoffthecomputerbypressingandholdingthepowerbuttonforfoursecondsormore.If
thesystemstilldoesnotrespond,removetheacpoweradapter.Thenresetthesystembyinsertinga
straightenedpaperclipintotheemergency-resethole.
Bootproblem
Printtheseinstructionsnowandkeepthemwithyourcomputerforreferencelater.
Problem:Ireceiveanerrormessagebeforetheoperatingsystemloads.
Solution:Followtheappropriatecorrectiveactionsforpower-onself-test(POST)errormessages.
Problem:Ireceiveanerrormessagewhiletheoperatingsystemisloadingthedesktopconfiguration
afterthePOSTiscompleted.
Solution:FindsolutionsbysearchingfortheerrormessageatthefollowingWebsites:
http://www.lenovo.com/support
Chapter7.Troubleshootingcomputerproblems87