Server User Manual

SymptomAction
ALenovooptionaldevicethat
usedtoworkdoesnotwork
now.
1.Makesurethatallofthehardwareandcableconnectionsforthedeviceare
secure.
2.Ifthedevicecomeswithtestinstructions,usethoseinstructionstotestthe
device.
3.IfthefailingdeviceisanSCSIdevice,makesurethat:
•ThecablesforallexternalSCSIdevicesareconnectedcorrectly.
•ThelastdeviceineachSCSIchain,ortheendoftheSCSIcable,is
terminatedcorrectly.
•AnyexternalSCSIdeviceisturnedon.YoumustturnonanexternalSCSI
devicebeforeyouturnontheserver.
4.Reseatthefailingdevice.
5.Replacethefailingdevice.
Powerproblems
•FollowthesuggestedactionsintheorderinwhichtheyarelistedintheActioncolumnuntiltheproblemis
solved.
•SeethepartslistingintheHardwareMaintenanceManualtodeterminewhichcomponentsarecustomer
replaceableunits(CRUs)andwhichcomponentsareeldreplaceableunits(FRUs).
•Ifanactionstepisprecededby“(Trainedservicetechnicianonly),”thatstepmustbeperformedonlyby
atrainedservicetechnician.
Chapter7.Troubleshooting89