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Chapter 4. Troubleshooting
Incorrect characters appear
on the screen.
Aretheoperatingsystemorprogramsinstalled
correctly?Iftheyareinstalledandconfigured
correctly,havethecomputerserviced.
BIOS password problems
I forgot my password. Ifyouforgetyouruserpassword,youmustaskthe
systemadministratortoresetyouruserpassword.
IfyouforgetyourHDDpassword,aLenovo
authorizedservicercannotresetyourpasswordor
recoverdatafromtheharddisk.Youmusttakeyour
computertoaLenovoauthorizedservicerora
marketingrepresentativetohavetheharddiskdrive
replaced.Proofofpurchaseisrequired,andafee
will
bechargedforpartsandservice.
Ifyouforgetyouradministratorpassword,aLenovo
authorizedservicercannotresetyourpassword.You
musttakeyourcomputertoaLenovoauthorized
serviceroramarketingrepresentativetohavethe
systemboardreplaced.Proofofpurchaseisrequired,
andafeewillbechargedforpartsandservice.
Sleep problems
The critical low-battery error
message appears, and the
computer immediately turns
off.
Thebatterypowerisgettinglow.ConnecttheAC
poweradaptertothecomputer,orreplacethebattery
withafullychargedone.
The computer enters
sleep mode immediately
after Power-on self-test
(POST).
Makesurethat:
Thebatteryischarged.
Theoperatingtemperatureiswithintheacceptable
range.See“Chapter2.UseandcareInformation”of
LenovoSafetyandGeneralInformationGuide.
Note:Ifthebatteryischargedandthetemperatureiswithinrange,havethecomputerserviced.
The computer does not
return from sleep mode,
and the computer does not
work.
Ifyourcomputerisinsleepmode,connecttheAC
adaptertothecomputerandthenpressanykeyor
thepowerbutton.
Ifthesystemstilldoesnotreturnfromsleepmode,
stopsresponding,orcannotbeturnedoff,resetthe
computer.Unsaveddatamaybelost.Toresetthe
computer,pressandholdthepowerbuttonfor4
secondsormore.
36


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