Lenovo/IBM ThinkCentre A57 9851-74G Memory
Maximum Memory: 4gb
Base Memory: 512mb (Removable)
Upgrade Sockets: 2 (2 banks of 1)
MODULES MUST BE ORDERED AND INSTALLED IN PAIRS for Dual Channel mode. If 4GB is installed, the recognized memory may be reduced to 3.5GB in some cases or less depending on operating system configuration and memory allocation. Maximum configurations require a 64-bit operating system. The system supports speeds PC2-5300 667MHz and PC2-6400 800MHz, when mixed defaults to lower speed.
512Mb Part Number: 40J8869, 41U2976
1Gb Part Number: 30R5126, 41U2977
2Gb Part Number: 30R5127, 41U2978
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