User Manual

Memorymoduleproblems
Printtheseinstructionsnowandkeeptheinstructionswithyourcomputerforreferencelater.
Ifyourmemorymoduleisnotoperatingproperly,checkthefollowingitems:
1.Verifythatthememorymoduleisinstalledandseatedcorrectlyinyourcomputer.
Itmightbenecessarytoremovealladdedmemorymodulestotestthecomputerwithonlythe
factory-installedmemorymodules,andthenreinstallthememorymoduleoneatatimetoensure
aproperconnection.
2.Checkforerrormessagesduringstartup.
Followtheappropriatecorrectiveactionsforpower-onself-test(POST).See“Errormessages”on
page116.
3.VerifythatthelatestUEFIforyourmodelhasbeeninstalled.
4.Verifythepropermemorycongurationandcompatibilityincludingthemaximummemorysizeandthe
memoryspeed.
5.Rundiagnosticprograms.See“Diagnosingproblems”onpage115.
Networkingproblems
Thefollowingarethemostcommonnetworkingproblems.
Ethernetproblems
•Problem:Thecomputercannotconnecttothenetwork.
Solution:Makesurethat:
–Thecableisinstalledcorrectly.
ThenetworkcablemustbesecurelyconnectedbothtotheEthernetconnectorofyourcomputerand
totheRJ45connectorofthehub.Themaximumallowabledistancefromthecomputertohubis
100meters.Ifthecableisconnectedandthedistanceiswithinacceptablelimitsbuttheproblem
persists,tryadifferentcable.
–Youareusingthecorrectdevicedriver.Toinstallthecorrectdriver,dothefollowing:
1.OpenControlPanelandclickHardwareandSound➙DeviceManager.Ifyouarepromptedfor
anadministratorpasswordorconrmation,typethepasswordorprovideconrmation.
2.Iftheexclamationmark!isdisplayednexttotheadapternameunderNetworkadapters,you
mightnotbeusingthecorrectdriverorthedrivermighthavebeendisabled.Toupdatethedriver,
right-clickthehighlightedadapter.
3.ClickUpdateDriverSoftware,andthenfollowtheinstructionsonthescreen.
–Theswitchportandtheadapterhavethesameduplexsetting.
Ifyouconguredtheadapterforfullduplex,makesurethattheswitchportalsoisconguredforfull
duplex.Settingwrongduplexmodecandegradeperformance,causedataloss,orresultinlost
connections.
–Youhaveinstalledallnetworkingsoftwarethatisnecessaryforyournetworkenvironment.
CheckwithyourLANadministratorforthenecessarynetworkingsoftware.
•Problem:Theadapterstopsworkingfornoapparentreason.
Solution:Thenetworkdriverlesmightbecorruptormissing.Updatethedriverbyreferringtothe
previoussolutionfortheproceduretomakesurethatthecorrectdevicedriverisinstalled.
Chapter10.Troubleshootingcomputerproblems119