7.Tocompletetheinstallationorreplacement,goto“Completingthepartsreplacement”onpage154.
Installingorreplacingamemorymodule
Attention:
Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafetyinformation”
intheThinkCentreUserGuide.ToobtainacopyoftheThinkCentreUserGuide,goto:
http://www.lenovo.com/ThinkCentreUserGuides
Thissectionprovidesinstructionsonhowtoinstallorreplaceamemorymodule.
YourcomputerhastwoslotsforinstallingorreplacingDDR3UDIMMsthatprovideuptoamaximumof
8GBsystemmemory.Wheninstallingorreplacingamemorymodule,use1GB,2GB,or4GBDDR3
UDIMMsinanycombinationuptoamaximumof8GB.
Toinstallorreplaceamemorymodule,dothefollowing:
1.Turnoffthecomputeranddisconnectallpowercordsfromelectricaloutlets.
2.Removethecomputercover.See“Removingthecomputercover”onpage116.
3.Removethefrontbezel.See“Removingandreinstallingthefrontbezel”onpage117.
4.Pivotthedrivebayassemblyupwardtogainaccesstothememoryslots.See“Accessingthesystem
boardcomponentsanddrives”onpage118.
5.Removetheheatsinkfanduct.See“Replacingtheheatsinkandfanassembly”onpage133.
6.Locatethememoryslots.See“Locatingpartsonthesystemboard”onpage79.
7.Removeanypartsthatmightpreventyouraccesstothememoryslots.Dependingonyourcomputer
model,youmightneedtoremovethePCIExpressx16graphicscardforeasieraccesstothememory
slots.See“InstallingorreplacingaPCIcard”onpage119.
8.Dependingonwhetheryouareinstallingorreplacingamemorymodule,dooneofthefollowing:
•Ifyouarereplacinganoldmemorymodule,opentheretainingclipsandgentlypullthememory
moduleoutofthememoryslot.
Figure56.Removingamemorymodule
Chapter10.ReplacingFRUs(MachineTypes:3493,3496,and3497)121