Lenovo C260 All-In-One PC Hardware Maintenance Manual

Chapter6.Symptom-to-FRUIndex

TheSymptom-to-FRUindexlistserrorsymptomsandpossiblecauses.Themostlikelycauseislistedﬁrst.

AlwaysbeginwithChapter4,“GeneralCheckout,”onpage11.Thisindexcanalsobeusedtohelpyou

decidewhichFRUstohaveavailablewhenservicingacomputer.Ifyouareunabletocorrecttheproblem

usingthisindex,goto“Undeterminedproblems”onpage20.

Notes:

•Ifyouhavebothanerrormessageandanincorrectaudioresponse,diagnosetheerrormessageﬁrst.

•Ifyoucannotrunthediagnostictestsoryougetadiagnosticerrorcodewhenrunningatestbutdid

receiveaPOSTerrormessage,diagnosethePOSTerrormessageﬁrst.

•Ifyoudidnotreceiveanyerrormessagelookforadescriptionofyourerrorsymptomsintheﬁrstpartof

thisindex.

Harddiskdrivebooterror

Aharddiskdrivebooterrorcanhavethefollowingcauses.

Error

FRU/Action

Thestartupdriveisnotincludedinthebootsequence

conﬁguration.

Checktheconﬁgurationandensurethestartupdriveis

inthebootsequence.

Nooperatingsystemisinstalledonthebootdrive.Installanoperatingsystemonthebootdrive.

Thebootsectoronthestartupdriveiscorrupted.

Thedrivemustbeformatted.Dothefollowing:

1.Attempttobackupthedataonthefailingharddisk

drive.

2.Usetheoperatingsystemtoformattheharddisk

drive.

Thedriveisdefective.

Replacetheharddiskdrive.

PowerSupplyProblems

Followtheseproceduresifyoususpectthereisapowersupplyproblem.

Check/VerifyFRU/Action

Checkthatthefollowingareproperlyinstalled:

•PowerCord

•On/OffSwitchconnector

•SystemBoardPowerSupplyconnectors

•Microprocessorconnections

Reseatconnectors

Checkthepowercord.PowerCord

Checkthepower-onswitch.Power-onSwitch