Lenovo System x3250 M4 - Keyboard, Mouse, or USB-Device Problems; Memory Problems

Keyboard,mouse,orUSB-deviceproblems
Table20.Keyboard,mouse,orUSB-device'ssymptomsandactions
•FollowthesuggestedactionsintheorderinwhichtheyarelistedintheActioncolumnuntiltheproblemis
solved.
•Ifanactionstepisprecededby“(Trainedtechnicianonly)”,thatstepmustbeperformedonlybyatrained
technician.
•GototheIBMsupportwebsiteathttp://www.lenovo.com/supporttocheckfortechnicalinformation,hints,
tips,andnewdevicedriversortosubmitarequestforinformation.
SymptomAction
Allorsomekeysonthe
keyboarddonotwork.
1.Makesurethat:
•Thekeyboardcableissecurelyconnected.
•Theserverandthemonitorareturnedon.
2.IfyouareusingaUSBkeyboard,runtheSetuputilityandenablekeyboardless
operation.
3.IfyouareusingaUSBkeyboardanditisconnectedtoaUSBhub,disconnect
thekeyboardfromthehubandconnectitdirectlytotheserver.
4.Replacethekeyboard.
ThemouseorUSB-device
doesnotwork.
1.Makesurethat:
•ThemouseorUSBdevicecableissecurelyconnectedtotheserver.
•ThemouseorUSBdevicedriversareinstalledcorrectly.
•Theserverandthemonitorareturnedon.
•ThemouseoptionisenabledintheSetuputility.
2.IfyouareusingaUSBmouseorUSBdeviceanditisconnectedtoaUSB
hub,disconnectthemouseorUSBdevicefromthehubandconnectitdirectly
totheserver.
3.ReplacethemouseorUSB-device.
Memoryproblems
Table21.Memoryproblemsandactions
•FollowthesuggestedactionsintheorderinwhichtheyarelistedintheActioncolumnuntiltheproblemis
solved.
•Ifanactionstepisprecededby“(Trainedtechnicianonly)”,thatstepmustbeperformedonlybyatrained
technician.
•GototheIBMsupportwebsiteathttp://www.lenovo.com/supporttocheckfortechnicalinformation,hints,
tips,andnewdevicedriversortosubmitarequestforinformation.
SymptomAction
Theamountofsystemmemory
thatisdisplayedislessthan
theamountofinstalledphysical
memory.
Note:EachtimeyouinstallorremoveaDIMM,youmustdisconnecttheserverfrom
thepowersource;then,wait10secondsbeforerestartingtheserver.
1.Makesurethat:
•NoerrorLEDsarelitontheoperatorinformationpanel.
•NoDIMMerrorLEDsarelitonthesystemboard.
•Thememorymodulesareseatedcorrectly.
•Youhaveinstalledthecorrecttypeofmemory.
•Ifyouchangedthememory,youupdatedthememoryconfigurationinthe
Setuputility.
106LenovoSystemx3250M4InstallationandServiceGuide