Lenovo System x3250 M4 - Power-Supply Leds

Table12.ThesuggestedactionstocorrectthedetectedproblemforeachLEDlight(continued)
•FollowthesuggestedactionsintheorderinwhichtheyarelistedintheActioncolumnuntiltheproblemis
solved.
•Ifanactionstepisprecededby“(Trainedtechnicianonly)”,thatstepmustbeperformedonlybyatrained
technician.
•GototheIBMsupportwebsiteathttp://www.lenovo.com/supporttocheckfortechnicalinformation,hints,
tips,andnewdevicedriversortosubmitarequestforinformation.
LEDDescriptionAction
correctly,see“Replacingamicroprocessor
andheatsink”onpage194.
3.Replacethefollowingcomponentsone
atatime,intheordershown,restarting
theservereachtime:
a.(Trainedtechnicianonly)Failing
microprocessor
b.(Trainedtechnicianonly)System
board
System-boarderrorLEDSystem-boardCPUVRDand/orpower
voltageregulatorshavefailed.
(Trainedtechnicianonly)Replacethe
systemboard.
IMM2heartbeatLED
Indicatesthestatusofthebootprocessof
theIMM2.
Whentheserverisconnectedtopower
thisLEDflashesquicklytoindicatethatthe
IMM2codeisloading.Whentheloading
iscomplete,theLEDstopsflashingbriefly
andthenflashesslowlytoindicatethatthe
IMM2iffullyoperationalandyoucanpress
thepower-controlbuttontostarttheserver.
IftheLEDdoesnotbeginflashingwithin30
secondsofwhentheserverisconnectedto
power,completethefollowingsteps:
1.(Trainedtechnicianonly)Recoverthe
firmware(see“Recoveringtheserver
firmware(UEFIupdatefailure)”onpage
118).
2.(Trainedtechnicianonly)Replacethe
systemboard.
RTMMheartbeatLED
Power-onandpower-offsequencing.1.IftheLEDflashesat1Hz,itis
functioningproperlyandnoactionis
necessary.
2.(Trainedtechnicianonly)IftheLEDis
notflashing,replacethesystemboard.
Power-supplyLEDs
Thissectiondescribesthepower-supplyLEDsontherearoftheserverandthesuggestedactionsto
correctthedetectedproblems.
Thefollowingminimumconfigurationisrequiredfortheservertostart:
•Onemicroprocessor
•One1GBDIMM
•Powersupply
•Powercord
•ServeRAIDSAS/SATAadapter
•Fourcoolingfans
ThefollowingillustrationshowstheLEDsandconnectorsontherearofthefixedpower-supplymodel.
Chapter4.Troubleshooting93