Could you tell me with the memory it?

Users questions: Now there are many models of memory, my desktop machine is Lenovo's brand machine, itself 256, and I want to buy with 1GB, but do not know for inappropriate, and do not know which brand of which model is good, Who can you tell me next? My computer is Lenovo's Yang-day series M32887777 77 You should have your specific computer model made up, because the memory market could see three, one old SDRAM memory, one DDR memory, there is the DDR2 memory, DDR3 memory will soon have a large sale . PC100 SDRAM memory, and PC is divided into 133; DDR with DDR266, DDR333, DDR400, etc.; DDR2 has DDR2533, DDR2667, DDR2800. But the memory is backward compatible, meaning that DDR400 memory is running at 266 and 333MHz for . So you want to upgrade the memory come to understand their own memory of the model, and then you need to upgrade, because it is inserted and the original mix of memory, it may have compatibility issues in buying memory service allows you to tell a good business if the take-home points returnable on the line does not shine.
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