Lenovo System x3550 M4 - Page 234

Step5.CarefullyopentheretainingclipsoneachendoftheDIMMconnectorandremovetheDIMM.
Attention:ToavoidbreakingtheretainingclipsordamagingtheDIMMconnectors,openand
closetheclipsgently.
Figure140.DIMMinstallation
Step6.Touchthestatic-protectivepackagethatcontainstheDIMMtoanyunpaintedmetalsurfaceonthe
outsideoftheserver.Then,removetheDIMMfromthepackage.
Step7.TurntheDIMMsothatthealignmentslotaligncorrectlywiththealignmenttab.
Step8.InserttheDIMMintotheconnectorbyaligningtheedgesoftheDIMMwiththeslotsattheendsof
theDIMMconnector(see“System-boardoptional-deviceconnectors”onpage30forthelocations
oftheDIMMconnectors).
Step9.FirmlypresstheDIMMstraightdownintotheconnectorbyapplyingpressureonbothendsofthe
DIMMsimultaneously.TheretainingclipssnapintothelockedpositionwhentheDIMMisfirmly
seatedintheconnector.
Note:IfthereisagapbetweentheDIMMandtheretainingclips,theDIMMhasnotbeencorrectly
inserted;opentheretainingclips,removetheDIMM,andthenreinsertit.
Step10.Reconnectthepowercordsandanycablesthatyouremoved.
Step11.Replacetheairbaffle(see“Replacingtheairbaffle”onpage192).
Note:ClosealltheretainingclipsevenforslotswithoutDIMMsinstalledbeforereplacingthe
airbaffle.
Step12.Replacethecover(see“Replacingthecover”onpage190).
Step13.Turnontheperipheraldevicesandtheserver.
RemovingaPCIriser-cardassembly
UsethisinformationtoremoveaPCIriser-cardassembly.
Note:PCIriser-cardbracketsmustbeinstalledevenifyoudonotinstallanadapter.
ToremoveaPCIriser-cardassembly,completethefollowingsteps:
220Systemx3550M4InstallationandServiceGuide