User guide

Yourcomputerdoesnotrespond.
Doeitherofthefollowing:
•Turnoffyourcomputerbypressingandholdingthepowerbuttonforfoursecondsormore.Ifthe
computerstilldoesnotrespond,removetheacpoweradapterandthebattery.
•Yourcomputermightlockwhenitenterssleepmodeduringacommunicationoperation.Disablethe
sleeptimerwhenyouareworkingonthenetwork.
Thecomputerdoesnotstartfromadeviceyouwant.
Dothefollowing:
1.EntertheBIOSprogram.
2.SelectStartup➙Boot.EnsurethatthedeviceisincludedintheBootPriorityOrderlist.
3.PressF12.
4.WhentheLenovologoisdisplayedonthescreen,selectthedevicethatyouwantthecomputerto
startfrom.
Theconnectedexternaldevicedoesnotwork.
Ensurethat:
•TheexternaldeviceisconnectedbyUSBcableswhilethecomputeristurnedon;otherwise,your
computermightbedamaged.
•Whenyouareusingahigh-power-consumptionexternaldevicesuchasanexternalUSBopticaldrive,
ensurethatyouusethepowercablethatcomeswiththeexternaldevice.Otherwise,thedevicemightnot
berecognized,orthecomputermightbeturnedoff.
Formoretechnicalsupportinformation,goto:
http://www.lenovo.com/support
Chapter8.Troubleshootingcomputerproblems45