Lenovo ThinkCentre M91p - Installing or Replacing a Memory Module

Installingorreplacingamemorymodule
Attention:
Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafetyinformation”
onpagevii
.
Thissectionprovidesinstructionsonhowtoinstallorreplaceamemorymodule.
YourcomputerhasfourslotsforinstallingorreplacingDDR3UDIMMsthatprovideuptoamaximumof32
GBsystemmemory.Wheninstallingorreplacingamemorymodule,usethefollowingguidelines:
•Use1GB,2GB,4GB,or8GBDDR3UDIMMsinanycombinationuptoamaximumof32GB.
•InstallmemorymodulesinthesequenceofDIMM2,DIMM4,DIMM1,andDIMM3.See“Locating
partsonthesystemboard”onpage12
.
Toinstallorreplaceamemorymodule,dothefollowing:
1.Turnoffthecomputeranddisconnectallpowercordsfromelectricaloutlets.
2.Openthecomputercover.See“Openingthecomputercover”onpage30.
3.Removethefrontbezel.See“Removingandreinstallingthefrontbezel”onpage30.
4.Removetheheatsinkfanduct.See“Replacingtheheatsinkandfanassembly”onpage37.
5.Removetheharddiskdrive.See“Replacingtheharddiskdrive”onpage50.
6.Pivottheopticaldrivebayupwardtogainaccesstothememoryslots.See“Replacingtheoptical
drive”onpage52.
7.Locatethememoryslots.See“Locatingpartsonthesystemboard”onpage12.
8.Removeanypartsthatmightpreventaccesstothememoryslots.
9.Dependingonwhetheryouareinstallingorreplacingamemorymodule,dooneofthefollowing:
•Ifyouarereplacinganoldmemorymodule,opentheretainingclipsandgentlypullthememory
moduleoutofthememoryslot.
Figure13.Removingamemorymodule
Chapter5.Installingorreplacinghardware35