Lenovo M55p - ThinkCentre - 8808 - No-Beep Symptoms; POST Error Codes

No-beepsymptoms
Symptom/ErrorFRU/Action
NobeepduringPOSTbutcomputerworkscorrectly.Systemboard
NobeepduringPOST.1.See“Undeterminedproblems”onpage76.
2.SystemBoard
3.MemoryModule
4.AnyAdapterorDevice
5.RiserCard
6.PowerCord
7.PowerSupply
POSTerrorcodes
Eachtimeyoupower-onthesystem,itperformsaseriesofteststhatchecktheoperationofthesystem
andsomeoptions.ThisseriesoftestsiscalledthePower-OnSelf-Test,orPOST.POSTdoesthefollowing
operations.
•Checkssomebasicsystem-boardoperations
•Checksthememoryoperation
•Startsthevideooperation
•Veriesthatthediskettedriveisworking
•Veriesthattheharddiskdriveisworking
IfthePOSTnisheswithoutdetectinganyproblems,asinglebeepsoundsandtherstscreenofthe
operatingsystemorapplicationprogramappears.
IfthePOSTdetectsaproblem,anerrormessageappearsonthescreen.Asingleproblemcancauseseveral
errormessagestoappear.Whenyoucorrectthecauseofthersterrormessage,theothererrormessages
probablywillnotappearonthescreenthenexttimeyouturnonthesystem.
Inthefollowingindex,Xcanrepresentanynumber.
POSTErrorCodeFRU/Action
162CongurationerrorSelectthedefaultsettingsinBIOS.SeeChapter6
“Diagnostics,TestandRecoveryInformation”onpage47
.
164MemorySizeError
1.RuntheExtendedMemoryDiagnostictests
2.Replacememorymodules
166BootBlockCheckSumError1.PerformaashupdatetoupdatetheBIOSlevel
2.Systemboard
167NoProcessorBIOSupdatefound1.RunSetup.CheckSteppinglevelfortheBIOSlevel
needed,thenperformtheashupdate.
2.Replacethemicroprocessor
175PrimaryCopyofSecureDataisdamaged1.RunSetupandselectdefaultsettings
2.Systemboard
176TheSystemhasbeentamperedwith1.Coverswereremovedfromthecomputer
72HardwareMaintenanceManual