User Guide

24
Chapter 4. Troubleshooting
Troubleshooting - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - -
Display problems
When I turn on the
computer, nothing
appears on the screen.
• Ifthescreenisblank,makesurethat:
‐ TheACpow
eradapterisconnectedtothecomputer,and
pluggedintoaworkingelectricaloutlet.
‐ Thecomp
uterpowerison.(PressthePowerbuttonagain
forconfirmation.)
• Ifth
eseitemsareproperlyset,andthescreenremainsblank,
havethecomputerserviced.
When I turn on the
c
omputer, only a white
cursor appears on a blank
screen.
• Resto
rebacked‐upfilestoyourWindowsenvironmentorthe
entirecontentsofyourharddisktoitsoriginalfactory
contentsusingtheResetthisPC.Ifyoustillseeonlythe
cursoronthescreen,havethecomputerserviced.
The screen goes blank
whil
e the computer is on.
• Yourscreensaverorpowermanagementmaybeenabled.Do
oneofthefollowingtoexitfromthescreensaverorto
resumefromsleepmode:
‐ To
uchthetouchpad.
‐ Pre
ssanykeyonthekeyboard.
‐ Pre
ssthePowerbutton.
BIOS password problems
I forgot my password. • Ifyouforgetyouruserpassword,askthesystem
administratortoclearyouruserpassword.
• Ifyo
uforgetyourharddiskdrivepassword,aLenovo
authorizedservicercannotresetyourpasswordorrecover
datafromtheharddisk.Youmusttakeyourcomputertoa
Lenovoauthorizedserviceroramarketingrepresentative to
havetheharddiskdrivereplaced.Proofofpurchaseis
required,andafeewillbechargedfo
rpartsandservice.
• Ifyo
uforgetyouradministratorpassword,aLenovo
authorizedservicercannotresetyourpassword.Youmust
takeyourcomputertoaLenovoauthorizedservicerora
marketingrepresentativetohavethesystemboardreplaced.
Proofofpurchaseisrequired,andafeewillbechargedfor
partsandservice.