Computer Hardware User Manual

7.PivotthecardlatchtotheclosedpositiontosecurethePCIcard.
Figure10.InstallingaPCIcard
8.Tocompletetheinstallationorreplacement,goto“Completingthepartsreplacement”onpage113.
Installingorreplacingamemorymodule
Attention:
Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafetyinformation”
intheThinkCentreUserGuide.ToobtainacopyoftheThinkCentreUserGuide,goto:
http://www.lenovo.com/ThinkCentreUserGuides
Thissectionprovidesinstructionsonhowtoinstallorreplaceamemorymodule.
YourcomputerhasfourslotsforinstallingorreplacingDDR3UDIMMsthatprovideuptoamaximumof32
GBsystemmemory.Wheninstallingorreplacingamemorymodule,usethefollowingguidelines:
•Use1GB,2GB,4GB,or8GBDDR3UDIMMsinanycombinationuptoamaximumof32GB.
•InstallmemorymodulesinthesequenceofDIMM2,DIMM4,DIMM1,andDIMM3.See“Locating
partsonthesystemboard”onpage77
.
Toinstallorreplaceamemorymodule,dothefollowing:
1.Turnoffthecomputeranddisconnectallpowercordsfromelectricaloutlets.
2.Removethecomputercover.See“Removingthecomputercover”onpage79.
3.Laythecomputeronitssideforeasieraccesstothesystemboard.
4.Locatethememoryslots.See“Locatingpartsonthesystemboard”onpage77.
5.Removeanypartsthatmightpreventyouraccesstothememoryslots.Dependingonyourcomputer
model,youmightneedtoremovethePCIExpressx16graphicscardforeasieraccesstothememory
slots.See“InstallingorreplacingaPCIcard”onpage81.
6.Dependingonwhetheryouareinstallingorreplacingamemorymodule,dooneofthefollowing:
84ThinkCentreHardwareMaintenanceManual