Lenovo System x3550 M5 - Serial-Device Problems

Table18.Powerproblemsandactions(continued)
•FollowthesuggestedactionsintheorderinwhichtheyarelistedintheActioncolumnuntiltheproblemis
solved.
•Ifanactionstepisprecededby“(Trainedtechnicianonly),”thatstepmustbeperformedonlybyatrained
technician.
•GototheSupportWebsiteathttp://www.lenovo.com/supporttocheckfortechnicalinformation,hints,
tips,andnewdevicedriversortosubmitarequestforinformation.
SymptomAction
Theserverdoesnotturnoff.
1.DeterminewhetheryouareusinganAdvancedConfigurationandPower
Interface(ACPI)oranon-ACPIoperatingsystem.Ifyouareusinganon-ACPI
operatingsystem,completethefollowingsteps:
a.PressCtrl+Alt+Delete.
b.Turnofftheserverbypressingthepower-controlbuttonandholditdownfor
5seconds.
c.Restarttheserver.
d.IftheserverfailsPOSTandthepower-controlbuttondoesnotwork,
disconnectthepowercordfor20seconds;then,reconnectthepowercord
andrestarttheserver.
2.IftheproblemremainsorifyouareusinganACPI-awareoperatingsystem,
suspectthesystemboard.
Theserverunexpectedlyshuts
down,andtheLEDsonthe
operatorinformationpanelare
notlit.
See“Solvingundeterminedproblems”onpage89
.
Serial-deviceproblems
Usethisinformationtosolveserial-deviceproblems.
Table19.Serialdeviceproblemsandactions
•FollowthesuggestedactionsintheorderinwhichtheyarelistedintheActioncolumnuntiltheproblemis
solved.
•Ifanactionstepisprecededby“(Trainedtechnicianonly),”thatstepmustbeperformedonlybyatrained
technician.
•GototheSupportWebsiteathttp://www.lenovo.com/supporttocheckfortechnicalinformation,hints,
tips,andnewdevicedriversortosubmitarequestforinformation.
SymptomAction
Thenumberofserialportsthat
areidentifiedbytheoperating
systemislessthanthenumber
ofinstalledserialports.
1.Makesurethat:
•EachportisassignedauniqueaddressintheSetupUtilityandnoneofthe
serialportsisdisabled.
•Theserial-portadapter(ifoneispresent)isseatedcorrectly.
2.Reseattheserialportadapter.
3.Replacetheserialportadapter.
Aserialdevicedoesnotwork.1.Makesurethat:
•Thedeviceiscompatiblewiththeserver.
•Theserialportisenabledandisassignedauniqueaddress.
•Thedeviceisconnectedtothecorrectconnector(see“System-board
internalconnectors”onpage26
).
2.Reseatthefollowingcomponents:
a.Failingserialdevice
Chapter3.Troubleshooting85