This is a 1GB PC3200 DDR DIMM that is 100% Compatible in the following IBM systems: IBM ThinkCentre A50 8084 IBM ThinkCentre A50 8085 IBM ThinkCentre A50 8089 IBM ThinkCentre A50 8090 IBM ThinkCentre A50 8147 IBM ThinkCentre A50 8148 IBM ThinkCentre A50 8149 IBM ThinkCentre A50 8177 IBM ThinkCentre A50p 8192 IBM ThinkCentre A50p 8196 IBM ThinkCentre A50p 8197 IBM ThinkCentre A51 8424 IBM ThinkCentre M50 8430 IBM ThinkCentre M50 8431 IBM ThinkCentre M51 8095 IBM ThinkCentre M51 8141 IBM ThinkCentre M51 8142 IBM ThinkCentre M51 8143 IBM ThinkCentre M51 8144 IBM ThinkCentre M51 8145 IBM ThinkCentre M51 8146 IBM ThinkCentre S50 8086 IBM ThinkCentre S50 8418 IBM ThinkCentre S50 8429 IBM ThinkCentre S51 8171 IBM ThinkCentre S51 8172 IBM ThinkCentre S51 8173 |