Lenovo ThinkCentre M90p - Replacing a Memory Module

Replacingamemorymodule
Attention
Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafety
information”intheThinkCentreSafetyandWarrantyGuidethatcamewithyourcomputer.Toobtainacopy
oftheThinkCentreSafetyandWarrantyGuide,goto:
http://www.lenovo.com/support
Thissectionprovidesinstructionsonhowtoinstallorreplaceamemorymodule.
YourcomputerhasfourslotsforinstallingorreplacingDDR3DIMMsthatprovideuptoamaximumof16GB
systemmemory.Wheninstallingorreplacingamemorymodule,usethefollowingguidelines:
•Use1GB,2GB,or4GBDDR3DIMMsinanycombinationuptoamaximumof16GB.
•InstallmemorymodulesinthesequenceofDIMM1,DIMM3,DIMM2,andDIMM4.See“Locating
partsonthesystemboard”onpage70
.
Toinstallorreplaceamemorymodule,dothefollowing:
1.Turnoffthecomputeranddisconnectallpowercordsfromelectricaloutlets.
2.Openthecomputercover.See“Openingthecomputercover”onpage68.
3.Pivottheopticaldrivebayassemblyupwardtogainaccesstothememoryslots.
4.Locatethememoryslots.See“Locatingpartsonthesystemboard”onpage70.
5.Removeanypartsthatmightpreventaccesstothememoryslots.
6.Opentheretainingclips.
Figure8.Openingtheretainingclips
Ifyouarereplacinganoldmemorymodule,opentheretainingclipsandgentlypullthememorymodule
outofthememoryslot.
Chapter8.ReplacingFRUs(Machinetype:7536)73