Lenovo System x3250 M4 - Serial Port Problems

Table26.Powerproblemsandactions(continued)
•FollowthesuggestedactionsintheorderinwhichtheyarelistedintheActioncolumnuntiltheproblemis
solved.
•Ifanactionstepisprecededby“(Trainedtechnicianonly)”,thatstepmustbeperformedonlybyatrained
technician.
•GototheIBMsupportwebsiteathttp://www.lenovo.com/supporttocheckfortechnicalinformation,hints,
tips,andnewdevicedriversortosubmitarequestforinformation.
SymptomAction
8.See“Solvingundeterminedproblems”onpage116.
Theserverdoesnotturnoff.
1.DeterminewhetheryouareusinganAdvancedConfigurationandPower
Interface(ACPI)oranon-ACPIoperatingsystem.Ifyouareusinganon-ACPI
operatingsystem,completethefollowingsteps:
a.PressCtrl+Alt+Delete.
b.Turnofftheserverbypressingthepower-controlbuttonfor5seconds.
c.Restarttheserver.
d.IftheserverfailsPOSTandthepower-controlbuttondoesnotwork,
disconnectthepowercordfor5seconds;then,reconnectthepowercord
andrestarttheserver.
2.IftheproblemremainsorifyouareusinganACPI-awareoperatingsystem,
suspectthesystemboard.
Theserverunexpectedlyshuts
down,andtheLEDsonthe
operatorinformationpanelare
notlit.
See“Solvingundeterminedproblems”onpage116
.
Serialportproblems
Table27.Serialportproblemsandactions
•FollowthesuggestedactionsintheorderinwhichtheyarelistedintheActioncolumnuntiltheproblemis
solved.
•Ifanactionstepisprecededby“(Trainedtechnicianonly)”,thatstepmustbeperformedonlybyatrained
technician.
•GototheIBMsupportwebsiteathttp://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.
2.Reseatthefollowingcomponents:
a.Failingserialdevice
b.Serialcable
112LenovoSystemx3250M4InstallationandServiceGuide