Table5.DSAPrebootmessages(continued)
•FollowthesuggestedactionsintheorderinwhichtheyarelistedintheActioncolumnuntiltheproblemis
solved.
•SeeChapter7“Partslisting,RS210Types6531,6532,6533,and6534”onpage175
todeterminewhich
componentsarecustomerreplaceableunits(CRU)andwhichcomponentsareeldreplaceableunits(FRU).
•Ifanactionstepisprecededby“(Trainedservicetechnicianonly),”thatstepmustbeperformedonlyby
aTrainedservicetechnician.
•GototheLenovosupportWebsiteathttp://www.lenovo.com/supporttocheckfortechnicalinformation,
hints,tips,andnewdevicedriversortosubmitarequestforinformation.
Message
numberComponentTestStateDescriptionAction
166-904-xxxIMM
IMMI2C
Test
FailedTheIMM
indicates
afailurein
thepower
supplybus
(Bus3).
1.Turnoffthesystemanddisconnectitfrom
thepowersource.Youmustdisconnectthe
systemfromacpowertoresettheIMM.
2.After45seconds,reconnectthesystemtothe
powersourceandturnonthesystem.
3.Runthetestagain.
4.MakesurethattheDSAcodeisatthelatest
level.ForthelatestlevelofDSAcode,goto
http://www.lenovo.com/support.
5.MakesurethattheIMMrmwareisatthelatest
level.Theinstalledrmwarelevelisshownin
theDSAeventlogintheFirmware/VPDsection
forthiscomponent.Formoreinformation,see
“Updatingthermware”onpage211
.
6.Runthetestagain.
7.Reseatthepowersupply.
8.Runthetestagain.
9.Turnoffthesystemanddisconnectitfromthe
powersource.
10.Trainedservicetechnicianonly)Replacethe
systemboard.
11.Reconnectthesystemtothepowersourceand
turnonthesystem.
12.Runthetestagain.
13.Ifthefailureremains,gototheLenovoWebsite
formoretroubleshootinginformationat
http://www.lenovo.com/support..
Chapter4.Diagnostics83
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