
Thefollowingtableprovidesinformationaboutthememorymoduleinstallationrulesthatyoushould
considerwheninstallingorremovingamemorymodule.The“X”markindicatesthememoryslot(s)into
whichthememorymodule(s)shouldbeinstalledindifferentsituations.Thenumbers1,2,3,and4indicate
theinstallationsequence.Tolocatethememorymoduleslots,see“Locatingpartsonthesystemboard”
onpage71
.
UDIMMDIMM1DIMM2DIMM3DIMM4
OneUDIMM
X
TwoUDIMMsX,1X,2
ThreeUDIMMsX,3X,1X,2
FourUDIMMsX,3X,1X,4X,2
Toinstallorreplaceamemorymodule,dothefollowing:
1.Removeallmediafromthedrivesandturnoffallattacheddevicesandthecomputer.Then,disconnect
allpowercordsfromelectricaloutletsanddisconnectallcablesthatareconnectedtothecomputer.
2.Removethecomputercover.See“Removingthecomputercover”onpage82.
3.Laythecomputeronitsside,andthenpivotthedrivebayassemblyupwardtoaccesstothesystem
board.
4.Locatethememoryslots.See“Locatingpartsonthesystemboard”onpage71.
5.Removeanypartsthatmightpreventyouraccesstothememoryslots.Dependingonyourcomputer
model,youmightneedtoremovethePCIExpressx16graphicscardforeasieraccesstothememory
slots.See“InstallingorreplacingaPCIcard”onpage100.
6.Dependingonwhetheryouareinstallingorreplacingamemorymodule,dooneofthefollowing:
•Ifyouarereplacinganoldmemorymodule,opentheretainingclipsandgentlypullthememory
moduleoutofthememoryslot.
Figure39.Removingamemorymodule
106ThinkCentreE93HardwareMaintenanceManual
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