7.PivotthecardlatchtotheclosedpositiontosecurethePCIcard.
Figure13.InstallingaPCIcard
Whattodonext:
•Toworkwithanotherpieceofhardware,gototheappropriatesection.
•Tocompletetheinstallationorreplacement,goto“Completingthepartsreplacement”onpage63.
Installingorreplacingamemorymodule
Attention:Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Important
safetyinformation”onpagev.
Thissectionprovidesinstructionsonhowtoinstallorreplaceamemorymodule.
YourcomputerhasfourslotsforinstallingorreplacingDDR3UDIMMsthatprovideuptoamaximumof16
GBsystemmemory.Wheninstallingorr eplacingamemorymodule,usethefollowingguidelines:
•Use1GB,2GB,or4GBDDR3UDIMMsinanycombinationuptoamaximumof16GB.
•InstallmemorymodulesinthesequenceofDIMM2,DIMM4,DIMM1,andDIMM3.See“Locating
partsonthesystemboar d”onpage11.
Toinstallorreplaceamemorymodule,dothefollowing:
1.Turnoffthecomputeranddisconnectallpowercordsfromelectricaloutlets.
2.Removethecomputercover.See“Removingthecomputercover”onpage32.
3.Laythecomputeronitssideforeasieraccesstothesystemboard.
4.Locatethememoryslots.See“Locatingpartsonthesystemboard”onpage11.
5.Removeanypartsthatmightpreventyouraccesstothememoryslots.Dependingonyourcomputer
model,youmightneedtoremovethePCIExpressx16graphicscardforeasieraccesstothememory
slots.See“InstallingorreplacingaPCIcar d”onpage33.
36ThinkCentreUserGuide