Lenovo ThinkStation C20 - Appendix A. System Memory Speed; DIMM Type and Speed Tables

DiagnosticErrorCodeFRU/Action
305-000-XXXMonitorDDCTestPassed
Noaction
305-250-XXXMonitorDDCselftestfailure1.RuntheSetupUtilityprogramtoenableDDC.
2.Cable
3.Monitor
4.Videocard
5.Systemboard
415-000-XXXModemTestPassedNoaction
415-XXX-XXXModemerrorRemovetheModemandre-testthesystem.
Beepsymptoms
Beepsymptomsaretonesoraseriesoftonesseparatedbypauses(intervalswithoutsound)duringPOST.
Thefollowingtablesdescribesbeepsymptoms.
BeepSymptomFRU/Action
2shortbeepsCMOSsettingerror
Performthefollowingactionsinorder.
1.StarttheSetupUtilityprogramandpressF10tosave
andexit.SeeChapter6“UsingtheSetupUtility
program”onpage37
.
2.StarttheSetupUtilityprogramandpressF9toload
defaultsandthenpressF10tosaveandexit.
3.PerformaBootblockrecovery.See“Recovering
fromaPOST/BIOSupdatefailure”onpage230.
1longand2shortbeepsMonitororvideoadaptercard
error
Performthefollowingactionsinorder.
1.Makesurethemonitorisproperlyconnectedtothe
computer.
2.Replacethevideoadaptercard(ifpresent).
3.Replacethesystemboard.
1longand3shortbeepsKeyboarderror
Performthefollowingactionsinorder.
1.Makesurethekeyboardisproperlyconnectedtothe
keyboardconnector.
2.Replacethekeyboard.
3.Replacethesystemboard.
1longand9shortbeepsBIOSROMerror
Performthefollowingactionsinorder.
1.StarttheSetupUtilityprogramandpressF9toload
defaultsandthenpressF10toSaveandexit.See
Chapter6“UsingtheSetupUtilityprogram”onpage
37
.
2.PerformaBootblockrecovery.See“Recovering
fromaPOST/BIOSupdatefailure”onpage230
.
3.Replacethesystemboard.
1-3-3-1shortbeepsDRAMmemoryerror
Performthefollowingactionsinorder.
1.Makesurethememorymodule(s)areproperlyseated
intheconnector(s).
2.Replacethememorymodule(s).
3.Replacethesystemboard.
Chapter8.Symptom-to-FRUIndex63