Table3.Errormessages(continued)
SymptomorerrorFRUoraction,insequence
Cannotbootfromanydevice.Checkthestatusofdevicewhichyouwanttoboot
from.
Devicenotfound.
1.Thedeviceyouwanttobootfrom.
2.Systemboard.
DeviceError.
1.Thedeviceyouwanttobootfrom.
2.Systemboard.
Novalidoperatingsystem.
1.Checkthattheoperatingsystemhasnofailureandis
installedcorrectly.
2.Reinstalltheoperationsystem.
Excludedfrombootorder.
•EntertheThinkPadSetupprogramandaddthedevice
inbootorder.
Beepsymptoms
Table4.Beepsymptoms
SymptomorerrorFRUoraction,insequence
Onebeepandablank,unreadable,orashingLCD.1.ReseattheLCDconnector.
2.LCDassembly.
3.ExternalCRT.
4.Systemboard.
Onelongandtwoshortbeeps,andablankorunreadable
LCD.
1.Systemboard.
2.LCDassembly.
3.DIMM.
Twoshortbeepswitherrorcodes.POSTerror.See“Numericerrorcodes”onpage43.
Twoshortbeepsandablankscreen.1.Systemboard.
2.DIMM.
Twoormorebeeps,oracontinuousbeep.Operating
systemstartssuccessfully.
Ifamini-PCIEthernetcardisinstalled,conrmthatAlert
OnLAN2intheThinkPadSetupprogramisdisabled.
Threeshortbeeps,pause,threemoreshortbeeps,and
oneshortbeep.
Oneshortbeep,pause,threeshortbeeps,pause,three
moreshortbeeps,andoneshortbeep.
1.DIMM.
2.Systemboard.
Onlythecursorappears.Reinstalltheoperatingsystem.
Fourcyclesoffourshortbeepsandablankscreen.Systemboard(securitychip)
Fiveshortbeepsandablankscreen.Systemboard
48ThinkPadX220T abletandX220iTabletHardwareMaintenanceManual