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Compatible upgrades: Lenovo ThinkCentre M57p 9011, 9014, 9071, 9089
Important:MODULES MAY BE INSTALLED ONE AT A TIME; however, they must be added in like pairs to take advantage of dual channel mode. If 4GB is installed, the recognized memory may be reduced to 3.5GB or less (depending on system configuration and memory allocation). Maximum configurations require a 64-bit operating system.