Powerproblems
Printtheseinstructionsnowandkeepitwithyourcomputerforreferencelater.
Ifyourcomputerisgettingnopoweratall,checkthefollowingitems:
1.Checkallpowerconnections.Removeanypowerstripsandsurgeprotectorstoconnecttheacpower
adapterdirectlytotheacpoweroutlet.
2.Inspecttheacpoweradapter.Checkforanyphysicaldamage,andensurethatthepowercableisfirmly
attachedtotheadapterbrickandthecomputer.
3.Verifytheacpowersourceisworkingbyattachinganotherdevicetotheoutlet.
4.Removealldevicesandthentestforsystempowerwithminimaldevicesattached.
a.Disconnecttheacpoweradapterandallcablesfromthecomputer.
b.Closethecomputerdisplay,andturnthecomputerover.
c.Removethememorymodule.Referto“Replacingamemorymodule”onpage69.
d.RemovetheMiniPCIExpressCard.Referto“ReplacingaMiniPCIExpressCardforwirelessLAN
connection”onpage70
.
e.Removetheharddiskdrive.Referto“Replacingtheharddiskdriveorsolid-statedrive”onpage67.
f.Waitfor30seconds,andthenreinstallthememorymoduleandtheknowngoodbatteryortheac
poweradaptertotestthecomputerwithminimaldevicesattachedfirst.
g.Reinstalleachdeviceoneatatimethatyouhaveremovedintheearliersteps.
Apowerbuttonproblem
Problem:Thesystemdoesnotrespond,andyoucannotturnoffthecomputer.
Solution:Turnoffthecomputerbypressingandholdingthepowerbuttonfor4secondsormore.Ifthe
systemisstillnotreset,removetheacpoweradapterandthebattery.
Bootproblems
Printtheseinstructionsnowandkeepthemwithyourcomputerforreferencelater.
Ifyoureceiveanerrormessagebeforetheoperatingsystemloads,followtheappropriatecorrectiveactions
forPOSTerrormessages.
Ifyoureceiveanerrormessagewhiletheoperatingsystemisloadingthedesktopconfigurationafterthe
POSTiscompleted,checkthefollowingitems:
1.GototheLenovoSupportWebsiteathttp://www.lenovo.com/supportandsearchfortheerrormessage.
2.GototheMicrosoftKnowledgeBasehomepageathttp://support.microsoft.com/andsearchforthe
errormessage.
Sleepandhibernationproblems
•Problem:Thecomputerenterssleepmodeunexpectedly.
Solution:Ifthemicroprocessoroverheats,thecomputerautomaticallyenterssleepmodetoallowthe
computertocoolandtoprotectthemicroprocessorandotherinternalcomponents.Checkthesettings
forsleepmode.
•Problem:Thecomputerenterssleepmode(thesystem-statusindicatorblinksslowly)immediately
afterthepower-onself-test.
Solution:Ensurethat:
–Thebatteryischarged.
114UserGuide