Lenovo B50-45 Notebook Manuale Utente Scaricare il pdf (Pagina 35)

Chapter 4. Troubleshooting

Other problems

Your computer does not

respond.

•Toturnoffyourcomputer,pressandholdthepower

buttonfor4secondsormore.Ifthecomputerstill

doesnotrespond,removethebatterypackandthe

ACpoweradapter.

•Yourcomputermightlockwhenitenterssleep

modeduringacommunicationoperation.Disable

thesleeptimerwhenyouareworkingonthe

network.

The computer does not start

from a device you want.

•SeetheEFIlistoftheBIOSsetuputility.Makesure

thattheBIOSsetuputilityissetsothatthecomputer

startsfromthedeviceyouwant.

• Alsomakesurethatthedevicefromwhichthe

computerstartsisenabled.Makesurethatthe

deviceisincludedintheEFIlistintheBIOSsetup

utilitycorrectly.

•PressF12whentheLenovologoappearsonthe

screenwhilethecomputerisstartinguptoselectthe

deviceyouwantthecomputerstartsfrom.

The connected external

device does not work.

•Donotconnectordisconnectanyexternaldevice

cablesotherthanUSBwhilethecomputerpoweris

on;otherwise,youmightdamageyourcomputer.

•Whenusingahighpowerconsumptionexternal

devicesuchasanexternalUSBopticaldiskdrive,

useanexternaldevicepoweradapter.Otherwise,

thedevicemightnotberecognized,orsystemshut

downmightresult.

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Lenovo B50-45 Notebook Manuale Utente Pagina 35