6.Pivottheopticaldrivebayupwardtoaccessthesystemboardcomponentsandthecables.See
“Replacingtheopticaldrive”onpage30.
Installingorreplacingamemorymodule
Attention:
Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafetyinformation”
intheThinkCentreSafetyandWarrantyGuidethatcamewithyourcomputer.ToobtainacopyoftheThinkCentre
SafetyandWarrantyGuide,goto:
http://www.lenovo.com/support
Thissectionprovidesinstructionsonhowtoinstallorreplaceamemorymodule.
YourcomputerhasfourslotsforinstallingorreplacingDDR3DIMMsthatprovideuptoamaximumof16GB
systemmemory .Wheninstallingorreplacingamemorymodule,use1GB,2GB,or4GBDDR3DIMMs
inanycombinationuptoamaximumof16GB.
Toinstallorreplaceamemorymodule,dothefollowing:
1.Turnoffthecomputeranddisconnectallpowercordsfromelectricaloutlets.
2.Openthecomputercover.See“Openingthecomputercover”onpage14.
3.Removethefrontbezel.See“Removingandreinstallingthefrontbezel”onpage15.
4.Removetheheatsinkfanduct.See“Replacingtheheatsinkandfanassembly”onpage33.
5.Removetheharddiskdrive.See“Replacingtheharddiskdrive”onpage27.
6.Pivottheopticaldrivebayupwardtogainaccesstothememoryslots.See“Replacingtheoptical
drive”onpage30.
7.Locatethememoryslots.See“Locatingpartsonthesystemboard”onpage10.
8.Removeanypartsthatmightpreventaccesstothememoryslots.
9.Dependingonwhetheryouareinstallingorreplacingamemorymodule,dooneofthefollowing:
•Ifyouarereplacinganoldmemorymodule,opentheretainingclipsandgentlypullthememory
moduleoutofthememoryslot.
Figure9.Removingamemorymodule
Chapter2.Installingorreplacinghardware17