Lenovo x3550 M5 - Intermittent Problems; Keyboard, Mouse, or USB-Device Problems

Table10.Hypervisor'ssymptomsandactions(continued)
•FollowthesuggestedactionsintheorderinwhichtheyarelistedintheActioncolumnuntiltheproblemis
solved.
•Ifanactionstepisprecededby“(Trainedtechnicianonly),”thatstepmustbeperformedonlybyatrained
technician.
•GototheSupportwebsiteathttp://www.lenovo.com/supporttocheckfortechnicalinformation,hints,tips,
andnewdevicedriversortosubmitarequestforinformation.
SymptomAction
doesnotappearinthelist
ofbootdevices,orasimilar
problemhasoccurred.
2.Makesurethattheembeddedhypervisordeviceisseatedintheconnector
correctly(see“ReplacingaUSBembeddedhypervisorflashdevice”onpage
222
and“ReplacingtheSDadapter”onpage168).
3.Seethedocumentationthatcomeswiththeoptionalembeddedhypervisor
deviceforsetupandconfigurationinformation.
4.Makesurethatothersoftwareworksontheserver.
Intermittentproblems
Usethisinformationtosolveintermittentproblems.
Table11.Intermittentproblemsandactions
•FollowthesuggestedactionsintheorderinwhichtheyarelistedintheActioncolumnuntiltheproblemis
solved.
•Ifanactionstepisprecededby“(Trainedtechnicianonly),”thatstepmustbeperformedonlybyatrained
technician.
•GototheSupportwebsiteathttp://www.lenovo.com/supporttocheckfortechnicalinformation,hints,tips,
andnewdevicedriversortosubmitarequestforinformation.
SymptomAction
Aproblemoccursonly
occasionallyandisdifficultto
diagnose.
1.Makesurethat:
•Allcablesandcordsareconnectedsecurelytotherearoftheserverand
attacheddevices.
•Whentheserveristurnedon,airisflowingfromthefangrille.Ifthereis
noairflow,thefanisnotworking.Thiscancausetheservertooverheat
andshutdown.
2.Checkthesystem-errorlogorIMMeventlogs(see“Eventlogs”onpage64).
Theserverresets(restarts)
occasionally.
1.IftheresetoccursduringPOSTandthePOSTwatchdogtimerisenabled(click
SystemSettings➙Recovery➙SystemRecovery➙POSTWatchdogTimer
intheSetuputilitytoseethePOSTwatchdogsetting),makesurethatsufficient
timeisallowedinthewatchdogtimeoutvalue(POSTWatchdogTimer).Ifthe
servercontinuestoresetduringPOST,seeAppendixB“UEFI/POSTdiagnostic
codes”onpage841andAppendixC“DSAdiagnostictestresults”onpage865.
2.Ifneitherconditionapplies,checkthesystem-errorlogorIMMsystem-event
log(see“Eventlogs”onpage64).
Keyboard,mouse,orUSB-deviceproblems
Usethisinformationtosolvekeyboard,mouse,orUSB-deviceproblems.
74LenovoSystemx3550M5InstallationandServiceGuide