Lenovo ThinkStation C20 - Installing or Replacing a Memory Module

Figure9.InstallingthePCIcardholder
Installingorreplacingamemorymodule
Attention
Donotopenyourcomputerorattemptanyrepairbeforereadingandunderstandingthe“Importantsafety
information”intheThinkStationSafetyandWarrantyGuidethatcamewithyourcomputer.Toobtainacopy
oftheThinkStationSafetyandWarrantyGuide,goto:
http://www.lenovo.com/support
Thissectionprovidesinstructionsonhowtoinstallorreplaceamemorymodule.
Dependingonyourmodel,yourcomputerhassixor12slotsforinstallingorreplacingDDR3ECCUDIMMs
(doubledatarate3errorcorrectioncodeunbuffereddualin-linememorymodules)orDDR3ECCRDIMMs
(doubledatarate3errorcorrectioncoderegistereddualin-linememorymodules).See“Locatingparts
andconnectorsonthesystemboard”onpage71
.
Wheninstallingorreplacingmemorymodules,usethefollowingguidelines:
•UseeitherDDR3ECCUDIMMsorDDR3ECCRDIMMsforyourcomputer.Donotinstallboththe
UDIMMsandRDIMMsintothesamecomputer.
•Use1GB,2GB,or4GBUDIMMsinanycombinationuptoamaximumof24GBor48GBofsystem
memory.
•Use1GB,2GB,4GB,8GB,or16GBRDIMMsinanycombinationuptoamaximumof96GBor
192GBofsystemmemory.
78ThinkStationHardwareMaintenanceManual