Lenovo ThinkCentre E73z - POST Error Codes

Thefollowingtabledescribesthebeepsymptoms.
BeepsymptomFRU/Action
2shortbeepsCMOSsettingerrorCommonerrorcode,seethedetailfailureinformationin
“POSTerrorcodes”onpage60
.
3shortand1longbeepsDRAMmemoryerror
Performthefollowingactionsinorder.
1.Makesurethememorymodule(s)areproperlyseated
intheconnector(s).
2.Replacethememorymodule(s).
3.Replacethesystemboard.
POSTerrorcodes
Eachtimeyoupower-onthesystem,itperformsaseriesofteststhatchecktheoperationofthesystem
andsomeoptions.ThisseriesoftestsiscalledthePower-OnSelf-Test,orPOST.POSTdoesthefollowing
operations.
•Checkssomebasicsystem-boardoperations
•Checksthememoryoperation
•Startsthevideooperation
•Veriesthatthebootdriveisworking
IfthePOSTdetectsaproblem,anerrormessageappearsonthescreen.Asingleproblemcancauseseveral
errormessagestoappear.Whenyoucorrectthecauseofthersterrormessage,theothererrormessages
probablywillnotappearonthescreenthenexttimeyouturnonthesystem.
ErrorcodePOSTerrormessageDescription/Action
0135
Fanfailure
Thesystemmightbeoverheating.
PressF10toexit.
Note:Iftheproblemiscausedbythe
microprocessorfan,pressF10will
notsolvetheproblem.
0211
Keyboardnotfound
Whenthereisnokeyboarddetected,
theerrormessagewillbedisplayed.
0164MemorysizedecreasedPressF10toexit.
1762
Congurationchangehasoccurred
Thiserrormessageisdisplayedwhen
aharddiskdriveoropticaldrive
changehasbeenmade.
PressF10toexit.
60ThinkCentreE73zHardwareMaintenanceManual