Lenovo ThinkServer 1045 - Serial Port Problems

SymptomAction
Thepower-controlbuttondoes
notwork(theserverdoesnot
start).
Note:Thepower-control
buttonwillnotfunctionuntil
3minutesaftertheserverhas
beenconnectedtoacpower.
1.Makesurethatthepower-controlbuttonisworkingcorrectly:
a.Disconnecttheserverpowercords.
b.Reconnectthepowercords.
c.(Trainedservicetechnicianonly)Reseattheoperatorinformationpanel
cables,andthendisconnecttheserverpowercords.Reconnectthepower
cords.Iftheserverstarts,reseattheoperatorinformationpanel.Ifthe
problemremains,replacetheoperatorinformationpanel.
2.Makesurethat:
•Thepowercordsarecorrectlyconnectedtotheserverandtoaworking
electricaloutlet.
•Thetypeofmemorythatisinstallediscorrect.
•TheDIMMisfullyseated.
•TheLEDsonthepowersupplydonotindicateaproblem.
•Themicroprocessorsareinstalledinthecorrectsequence.
3.Reseatthefollowingcomponents:
a.DIMMs
b.(Trainedservicetechnicianonly)Powerswitchconnector
c.(Trainedservicetechnicianonly)Powerbackplane
4.Replacethefollowingcomponentsoneatatime,intheordershown,restarting
theservereachtime:
a.DIMMs
b.(Trainedservicetechnicianonly)Powerswitchconnector
c.(Trainedservicetechnicianonly)Powerbackplane
d.(Trainedservicetechnicianonly)Systemboard
5.Ifyoujustinstalledanoptionaldevice,removeit,andrestarttheserver.If
theservernowstarts,youmighthaveinstalledmoredevicesthanthepower
supplysupports.
6.See“Solvingundeterminedproblems”onpage99.
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”onpage99
.
Serialportproblems
•FollowthesuggestedactionsintheorderinwhichtheyarelistedintheActioncolumnuntiltheproblemis
solved.
96ThinkServerInstallationandUserGuide