Lenovo ThinkPad Edge E425 - A Power Button Problem; Startup Problems

a.Disconnecttheacpoweradapterandallcablesfromthecomputer.
b.Closethecomputerdisplay,andturnthecomputerover.
c.Removethebattery.Referto“Replacingthebattery”onpage69.
d.Removethememorymodule.Referto“Replacingamemorymodule”onpage81.
e.RemovethePCIExpressMiniCard.Referto“ReplacingaPCIExpressMiniCardforwireless
LANconnection”onpage78.
f.Removetheharddiskdrive.Referto“Replacingtheharddiskdrive”onpage71.
g.Waitfor30seconds,andthenreinstallthememorymoduleandtheknowngoodbatteryortheac
poweradaptertotestthecomputerwithminimaldevicesattachedrst.
h.Reinstalleachdeviceoneatatimethatyouhaveremovedintheearliersteps.
Ifyourcomputerdoesnotrunonbatterypower,checkthefollowingitems:
1.Removeandreseatthebatterytomakesurethatitisproperlyconnected.Referto“Replacingthe
battery”onpage69
.
2.Swapbatterieswithanothersimilarmodel,ifavailable.
IfanothersimilarThinkPadmodelisavailable,thenverifythatthebatterypackworksintheother
computerandthatthebatterypackfortheothermodelworksinthiscomputer.
3.Verifythebattery-statusindicator.Referto“Powerstatusindicator”onpage13.
Apowerbuttonproblem
•Problem:Thesystemdoesnotrespond,andyoucannotturnoffthecomputer.
Solution:Turnoffthecomputerbypressingandholdingthepowerbuttonfor4secondsormore.Ifthe
systemisstillnotreset,removetheacpoweradapterandthebattery.
Startupproblems
Printtheseinstructionsnowandkeepthemwithyourcomputerforreferencelater.
Ifyoureceiveanerrormessagebeforetheoperatingsystemloads,followtheappropriatecorrectiveactions
forPower-onself-testerrormessages.
Ifyoureceiveanerrormessagewhiletheoperatingsystemisloadingthedesktopcongurationafterthe
POSTiscompleted,checkthefollowingitems:
1.GototheLenovoSupportWebsiteathttp://www.lenovo.com/supportandsearchfortheerrormessage.
2.GototheMicrosoftKnowledgeBasehomepageathttp://support.microsoft.com/andsearchforthe
errormessage.
Sleepandhibernationproblems
•Problem:Thecomputerenterssleepmodeunexpectedly.
Solution:Iftheprocessoroverheats,thecomputerautomaticallyentersleepmodetoallowthecomputer
tocoolandtoprotecttheCPUandotherinternalcomponents.Checkthesettingsforsleepmode,
usingPowerManager.
•Problem:Thecomputerenterssleepmode(thesleepindicatorturnson)immediatelyafterthePOST.
Solution:Makesurethat:
–Thebatteryischarged.
–Theoperatingtemperatureiswithintheacceptablerange.Referto“Features”onpage15
,
“Specications”onpage18,and“Operatingenvironment”onpage18.
Chapter9.Troubleshootingcomputerproblems129