- Lenovo Personal Computer User's Guide

Chapter10.Troubleshootinganddiagnostics

Thischapterdescribessomebasictroubleshootinganddiagnosticprograms.Ifyourcomputerproblem

isnotdescribedhere,seeChapter11“Gettinginformation,help,andservice”onpage73

foradditional

troubleshootingresources.

Basictroubleshooting

Thefollowingtableprovidesinformationtohelpyoutroubleshootyourcomputerproblems.

Note:Ifyoucannotcorrecttheproblem,havethecomputerserviced.Foralistofserviceandsupport

telephonenumbers,refertotheThinkCentreSafetyandWarrantyGuidethatcomeswithyourcomputeror

gototheLenovoSupportWebsiteathttp://www.lenovo.com/support/phone.

SymptomAction

Thecomputerdoesnotstart

whenyoupressthepower

switch.

Verifythat:

•Thepowercordiscorrectlyconnectedtotherearofthecomputerandtoa

workingelectricaloutlet.

•Ifyourcomputerhasasecondarypowerswitchontherearofthecomputer,

makesurethatitisswitchedon.

•Thepowerindicatoronthefrontofthecomputerison.

•Thecomputervoltagematchesthevoltageavailableattheelectricaloutletfor

yourcountryorregion.

Themonitorscreenisblank.

Verifythat:

•Themonitorsignalcableiscorrectlyconnectedtothemonitorandtothe

appropriatemonitorconnectoronthecomputer.

•Themonitorpowercordiscorrectlyconnectedtothemonitorandtoaworking

electricaloutlet.

•Themonitoristurnedonandthebrightnessandcontrastcontrolsareset

correctly.

•Thecomputervoltagematchesthevoltageavailableattheelectricaloutletfor

yourcountryorregion.

•Ifyourcomputerhastwomonitorconnectors,besuretousetheconnector

onthegraphicscard.

Thekeyboarddoesnotwork.

Verifythat:

•Thecomputeristurnedon.

•ThekeyboardissecurelyconnectedtoaUSBconnectoronthecomputer.

•Nokeysarestuck.

Themousedoesnotwork.

Verifythat:

•Thecomputeristurnedon.

•ThemouseissecurelyconnectedtoaUSBconnectoronthecomputer.

•Themouseisclean.Referto“Opticalmouse”onpage51

forfurtherinformation.