Lenovo ThinkCentre M55p Hardware Maintenance Manual

Chapter7.Symptom-to-FRUIndex
TheSymptom-to-FRUindexlistserrorsymptomsandpossiblecauses.Themostlikelycauseislistedrst.
AlwaysbeginwithChapter4“GeneralCheckout”onpage37
.Thisindexcanalsobeusedtohelpyou
decidewhichFRUstohaveavailablewhenservicingacomputer.Ifyouareunabletocorrecttheproblem
usingthisindex,goto“Undeterminedproblems”onpage76.
Notes:
•Ifyouhavebothanerrormessageandanincorrectaudioresponse,diagnosetheerrormessagerst.
•Ifyoucannotrunthediagnostictestsoryougetadiagnosticerrorcodewhenrunningatest,butdidreceivea
POSTerrormessage,diagnosethePOSTerrormessagerst.
•Ifyoudidnotreceiveanyerrormessage,lookforadescriptionofyourerrorsymptomsintherstpartofthisindex.
•Checktheharddiskdrivejumpersettingsbeforeyoureplaceaharddiskdrive.
Harddiskdrivebooterror
Aharddiskdrivebooterror(errorcodes1962andI999030X)canhavethefollowingcauses.
ErrorFRU/Action
Thestart-updriveisnotinthebootsequencein
conguration.
Checkthecongurationandensurethestart-updriveis
inthebootsequence.
Nooperatingsysteminstalledonthebootdrive.Installanoperatingsystemonthebootdrive.
Thebootsectoronthestart-updriveiscorrupted.
Thedrivemustbeformatted,dothefollowing:
1.Attempttoback-upthedataonthefailingharddisk
drive.
2.Usingtheoperatingsystemsprograms,formatthe
harddiskdrive.
Thedriveisdefective.
Replacetheharddiskdrive.
PowerSupplyErrors
Ifyoususpectapowerproblem,usethefollowingprocedures.
Check/VerifyFRU/Action
Checkthefollowingforproperinstallation.
•PowerCord
•On/OffSwitchconnector
•On/OffSwitchPowerSupplyconnector
•SystemBoardPowerSupplyconnectors
•Microprocessor(s)connection
Reseatconnectors
Checkthepowercordforcontinuity.PowerCord
Checkthepower-onswitchforcontinuity.Power-onSwitch
1.Turnoffthecomputeranddisconnectallexternaldevices.
2.Power-onthecomputer.
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Lenovo ThinkCentre M55p Specifications

General

Brand	Lenovo
Model	ThinkCentre M55p
Category	Desktop
Language	English