Lenovo ThinkServer RD240 - Serial Port Problems

SymptomAction
5.Ifyoujustinstalledanoptionaldevice,removeit,andrestarttheserver.If
theservernowstarts,youmighthaveinstalledmoredevicesthanthepower
supplysupports.
6.See“Solvingundeterminedproblems”onpage102.
Theserverdoesnotturnoff.
1.DeterminewhetheryouareusinganAdvancedCongurationandPower
Interface(ACPI)oranon-ACPIoperatingsystem.Ifyouareusinganon-ACPI
operatingsystem,dothefollowing:
a.PressCtrl+Alt+Delete.
b.Turnofftheserverbypressingthepower-controlbuttonfor5seconds.
c.Restarttheserver.
d.IftheserverfailsthePOSTandthepower-controlbuttondoesnotwork,
disconnectthepowercordfor20seconds;then,reconnectthepowercord
andrestarttheserver.
2.IftheproblemremainsorifyouareusinganACPI-awareoperatingsystem,
suspectthesystemboard.
Theserverunexpectedlyshuts
down,andtheLEDsonthe
operatorinformationpanelare
notlit.
See“Solvingundeterminedproblems”onpage102
.
Serialportproblems
•FollowthesuggestedactionsintheorderinwhichtheyarelistedintheActioncolumnuntiltheproblemis
solved.
•SeethepartslistingintheHardwareMaintenanceManualtodeterminewhichcomponentsarecustomer
replaceableunits(CRUs)andwhichcomponentsareeldreplaceableunits(FRUs).
•Ifanactionstepisprecededby“(Trainedservicetechnicianonly),”thatstepmustbeperformedonlyby
atrainedservicetechnician.
SymptomAction
Thenumberofserialportsthat
areidentiedbytheoperating
systemislessthanthenumber
ofinstalledserialports.
1.Makesurethat:
•EachportisassignedauniqueaddressintheSetupUtilityprogramand
noneoftheserialportsisdisabled.
•Theserialportadapter(ifoneispresent)isseatedcorrectly.
2.Reseattheserialportadapter.
3.Replacetheserialportadapter.
Aserialdevicedoesnotwork.1.Makesurethat:
•Thedeviceiscompatiblewiththeserver.
•Theserialportisenabledandisassignedauniqueaddress.
•Thedeviceisconnectedtothecorrectconnector.
2.Reseatthefollowingcomponents:
a.Failingserialdevice
b.Serialcable
3.Replacethefollowingcomponentsoneatatime,intheordershown,restarting
theservereachtime:
a.Failingserialdevice
b.Serialcable
c.(Trainedservicetechnicianonly)Systemboard
100ThinkServerUserGuide