Lenovo System x3500 M4 - Nx-Boot Failure

Whiletheserverisstarting,iftheintegratedmanagementmoduleIIdetectsproblemswiththeserver
firmwareintheprimarybank,theserverautomaticallyswitchestothebackupfirmwarebankandgives
youtheopportunitytorecoverthefirmwareintheprimarybank.ForinstructionsforrecoveringtheUEFI
firmware,see“Recoveringtheserverfirmware(UEFIupdatefailure)”onpage163
.Afteryouhaverecovered
thefirmwareintheprimarybank,completethefollowingsteps:
Step1.Restarttheserver.
Step2.WhenthepromptPressF3torestoretoprimaryisdisplayed,pressF3tostarttheserverfrom
theprimarybank.
Nx-bootfailure
UsethisinformationforNx-bootfailure.
Configurationchanges,suchasaddeddevicesoradapterfirmwareupdates,andfirmwareorapplication
codeproblemscancausetheservertofailPOST(thepower-onself-test).Ifthisoccurs,theserverresponds
ineitherofthefollowingways:
•TheserverrestartsautomaticallyandattemptsPOSTagain.
•Theserverhangs,andyoumustmanuallyrestarttheserverfortheservertoattemptPOSTagain.
Afteraspecifiednumberofconsecutiveattempts(automaticormanual),theNx-bootfailurefeaturecauses
theservertoreverttothedefaultUEFIconfigurationandstarttheSetuputilitysothatyoucanmakethe
necessarycorrectionstotheconfigurationandrestarttheserver.Iftheserverisunabletosuccessfully
completePOSTwiththedefaultconfiguration,theremightbeaproblemwiththesystemboard.
TospecifythenumberofconsecutiverestartattemptsthatwilltriggertheNx-bootfailurefeature,inthe
Setuputility,clickSystemSettings➙Recovery➙POSTAttempts➙POSTAttemptsLimit.Theavailable
optionsare3,6,9,and255(disableNx-bootfailure).
Chapter4.Troubleshooting165