Personal Computer User Manual

Replacingamemorymodule
Attention
Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafetyinformation”
intheThinkCentreSafetyandWarrantyGuidethatcamewithyourcomputer.ToobtainacopyoftheThinkCentre
SafetyandWarrantyGuide,goto:
http://www.lenovo.com/support
Thissectionprovidesinstructionsonhowtoreplaceamemorymodule.
YourcomputerhasfourslotsforinstallingorreplacingDDR3DIMMs(doubledatarate3dualinlinememory
modules)thatprovideuptoamaximumof8GBofsystemmemory.
Wheninstallingorreplacingmemorymodules,usethefollowingguidelines:
•Use1.8V,240-pinDDR3SDRAM(doubledatarate3synchronousdynamicrandomaccessmemory).
•Use1GBor2GBmemorymodulesinanycombinationuptoamaximumof8GB.
Note:OnlyDDR3SDRAMDIMMscanbeused.
Toreplaceamemorymodule:
1.Removethecomputercover.See“Removingthecomputercover”onpage73.
2.Locatethememoryslots.See“Locatingpartsonthesystemboard”onpage76.
3.Removethememorymodulebeingreplacedbyopeningtheretainingclipsasshown.
Figure7.Removingthememorymodule
78ThinkCentreHardwareMaintenanceManual