resumingthecomputerfromthesleepmode.Whenresumingthecomputerfromthesleepmodewithout
attachingtheexternalmonitororturningiton,andthecomputerdisplayremainsblank,pressthe
brightness-upkey
tobringupthecomputerdisplay.
•Problem:Thecomputerdoesnotreturnfromsleepmode,orthesystem-statusindicator(illuminated
ThinkPadlogo)blinksslowlyandthecomputerdoesnotwork.
Solution:Ifthesystemdoesnotreturnfromsleepmode,itmighthaveenteredsleeporhibernation
modeautomaticallybecausethebatteriesaredepleted.Checkthesystem-statusindicator(illuminated
ThinkPadlogo).
–Ifthesystem-statusindicator(illuminatedThinkPadlogo)blinksslowly,yourcomputerisinsleepmode.
Connecttheacpoweradaptertothecomputer;thenpressFn.
–Ifthesystem-statusindicator(illuminatedThinkPadlogo)isoff,yourcomputerisinpower-offstateor
inhibernationmode.Connecttheacpoweradaptertothecomputer;thenpressthepowerbutton
toresumeoperation.
Ifthesystemstilldoesnotreturnfromsleepmode,yoursystemmightstoprespondingandyoumightnot
beabletoturnoffthecomputer.Inthiscase,youneedtoresetthecomputer.Ifyouhavenotsaved
yourdata,itmightbelost.Toresetthecomputer,pressandholdthepowerbuttonforfoursecondsor
more.Ifthesystemisstillnotreset,removetheacpoweradapterandresetthesystembyinsertinga
straightenedpaperclipintotheemergency-resethole.Tolocatetheemergency-resethole,referto
“Bottomview”onpage5
.
•Problem:Yourcomputerdoesnotentersleeporhibernationmode.
Solution:Checkwhetheranyoptionhasbeenselectedtodisableyourcomputerfromenteringsleep
orhibernationmode.
Ifyourcomputertriestoentersleepmodebuttherequestisrejected,thedeviceattachedtotheUSB
connectormighthavebeendisabled.Ifthisoccurs,doahot-unplug-and-plugoperationfortheUSB
device.
•Problem:Thebatteriesdischargeslightlywhilethecomputerisinhibernationmode.
Solution:Ifthewakeupfunctionisenabled,thecomputerconsumessmallamountofpower.Thisisnota
defect.Formoreinformation,see“Power-savingmodes”onpage27.
Problemswithdrivesandotherstoragedevices
Thissectionincludesharddiskdriveproblemsandsolid-statedriveproblems.
Asolid-statedriveproblem
Problem:WhenyoucompressfilesorfoldersbyuseofthedatacompressionfunctioninWindows,and
thendecompressthem,theprocessofwritingtoorreadingfromthefilesorfoldersisslow.
Solution:ApplythediskdefragmentationtoolinWindowsforfasteraccesstothedata.
Asoftwareproblem
Problem:Anapplicationdoesnotruncorrectly.
Solution:Makesurethattheproblemisnotbeingcausedbytheapplication.
Checkthatyourcomputerhastheminimumrequiredmemorytoruntheapplication.Refertothemanuals
suppliedwiththeapplication.
Checkthefollowing:
•Theapplicationisdesignedtooperatewithyouroperatingsystem.
Chapter8.Troubleshootingcomputerproblems91