Personal Computer User Manual

Figure10.InstallingaPCIcard
Whattodonext:
•Toworkwithanotherpieceofhardware,gototheappropriatesection.
•Tocompletetheinstallationorreplacement,goto“Completingthepartsreplacement”onpage38.
Installingorreplacingamemorymodule
Attention:
Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafetyinformation”
intheThinkCentreSafetyandWarrantyGuidethatcamewithyourcomputer.ToobtainacopyoftheThinkCentre
SafetyandWarrantyGuide,goto:
http://www.lenovo.com/support
Thissectionprovidesinstructionsonhowtoinstallorreplaceamemorymodule.
YourcomputerhasfourslotsforinstallingorreplacingDDR3DIMMsthatprovideuptoamaximumof16GB
systemmemory.Wheninstallingorreplacingamemorymodule,usethefollowingguidelines:
•Use1GB,2GB,or4GBDDR3DIMMsinanycombinationuptoamaximumof16GB.
•InstallmemorymodulesinthesequenceofDIMM1,DIMM3,DIMM2,andDIMM4.See“Locating
partsonthesystemboard”onpage10
.
Toinstallorreplaceamemorymodule,dothefollowing:
1.Turnoffthecomputeranddisconnectallpowercordsfromelectricaloutlets.
2.Removethecomputercover.See“Removingthecomputercover”onpage14.
3.Locatethememoryslots.See“Locatingpartsonthesystemboard”onpage10.
4.Removeanypartsthatmightpreventyouraccesstothememoryslots.Dependingonyourcomputer
model,youmightneedtoremovethePCIExpressx16graphicscardforeasieraccesstothememory
slots.See“InstallingorreplacingaPCIcard”onpage15
.
18ThinkCentreUserGuide