SymptomAction
Aproblemoccursonly
occasionallyandisdifcultto
diagnose.
1.Makesurethat:
•Allcablesandcordsareconnectedsecurelytotherearoftheserverand
attacheddevices.
•Whentheserveristurnedon,airisowingfromthefangrille.Ifthereis
noairow,thefanisnotworking.Thiscancausetheservertooverheat
andshutdown.
2.Checkthesystem-eventlog(see“Eventlogs”onpage94).
3.See“Solvingundeterminedproblems”onpage93.
Keyboard,mouse,orpointing-deviceproblems
•FollowthesuggestedactionsintheorderinwhichtheyarelistedintheActioncolumnuntiltheproblemis
solved.

•SeethepartslistingintheHardwareMaintenanceManualtodeterminewhichcomponentsarecustomer

replaceableunits(CRUs)andwhichcomponentsareeldreplaceableunits(FRUs).

•Ifanactionstepisprecededby“(Trainedservicetechnicianonly),”thatstepmustbeperformedonlyby

atrainedservicetechnician.

SymptomAction
Allorsomekeysonthe
keyboarddonotwork.
1.Makesurethat:
•Thekeyboardcableissecurelyconnected.
•Theserverandthemonitorareturnedon.
2.Thekeyboardiscompatiblewiththeserver.RefertotheWebsiteat
http://www.lenovo.com/thinkserver.
3.IfyouareusingaUSBkeyboardanditisconnectedtoaUSBhub,disconnect
thekeyboardfromthehubandconnectitdirectlytotheserver.
4.Replacethefollowingcomponentsoneatatime,intheordershown,restarting
theservereachtime:
a.Keyboard
b.(Trainedservicetechnicianonly)Systemboard
Themouseorpointingdevice
doesnotwork.
1.Makesurethat:
•Themouseorpointingdeviceiscompatiblewiththeserver.RefertotheWeb
siteathttp://www.lenovo.com/thinkserver.
•Themouseorpointing-devicecableissecurelyconnectedtotheserver.
•Themouseorpointing-devicedevicedriversareinstalledcorrectly.
•Theserverandthemonitorareturnedon.
•ThemouseisenabledintheSetupUtilityprogram.
2.IfyouareusingaUSBmouseorpointingdeviceanditisconnectedtoaUSB
hub,disconnectthemouseorpointingdevicefromthehubandconnectit
directlytotheserver.
3.Replacethefollowingcomponentsoneatatime,intheordershown,restarting
theservereachtime:
a.Mouseorpointingdevice
b.(Trainedservicetechnicianonly)Systemboard
Memoryproblems
•FollowthesuggestedactionsintheorderinwhichtheyarelistedintheActioncolumnuntiltheproblemis
solved.
Chapter7.Troubleshooting85