Personal Computer User Manual

7.ReinstallthescrewtosecurethePCIcardlatchinplace.
Whattodonext:
•Toworkwithanotherpieceofhardware,gototheappropriatesection.
•Tocompletetheinstallationorreplacement,goto“Completingthepartsreplacement”onpage37.
Installingorreplacingamemorymodule
Attention:
Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafetyinformation”
intheThinkCentreSafetyandWarrantyGuidethatcamewithyourcomputer.T oobtainacopyoftheThinkCentre
SafetyandWarrantyGuide,goto:
http://www.lenovo.com/support
Thissectionprovidesinstructionsonhowtoinstallorreplaceamemorymodule.
YourcomputerhasfourmemoryslotsforinstallingorreplacingDDR3SDRAMDIMMsthatprovideuptoa
maximumof16GBofsystemmemory.Wheninstallingorreplacingamemorymodule,use1GB,2GBor4
GBDDR3SDRAMDIMMsinanycombinationuptoamaximumof16GBofsystemmemory.
Toinstallorreplaceamemorymodule,dothefollowing:
1.Removeallmediafromthedrivesandturnoffallattacheddevicesandthecomputer.Then,disconnect
allpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothecomputer.
2.Removethecomputercover.See“Removingthecomputercover”onpage14.
3.Laythecomputeronitssideforeasieraccesstothesystemboard.
4.Locatethememoryslotsonthesystemboard.See“Locatingpartsonthesystemboard”onpage9.
5.Removeanypartsanddisconnectanycablesthatmightpreventyouraccesstothememoryslots.
6.Dooneofthefollowing:
•Ifyouarereplacingamemorymodule,opentheretainingclipsandremovetheoldmemorymodule
thatiscurrentlyinstalled.
Figure12.Removingthememorymodule
•Ifyouareinstallingamemorymodule,opentheretainingclipsofthememoryslotintowhichyou
wanttoinstallthememorymodule.
Chapter2.Installingorreplacinghardware19