Lenovo/IBM ThinkCentre M57 9181-A12 Memory
Maximum Memory: 8gb
Base Memory: 512mb/1gb (Removable)
Upgrade Sockets: 4 (4 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. A 64-bit operating system is required to utilize more than 4gb of memory. The system supports speeds PC2-5300(667 MHz), PC2-6400(800 MHz), when mixed defaults to lower speed.
256Mb Part Number: 30R5124, 73P4982, 40J8868, 41U2975
512Mb Part Number: 30R5125, 73P4983, 40J8869, 41U2976
1Gb Part Number: 30R5126, 73P4984, 40J8870, 41U2977
2Gb Part Number: 30R5127, 73P4985, 40T4064, 41U2978
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