memorys

So what is the difference between DDR2-DIMM, SDRAM-DIMM, DDR-DIMM and so on? How do I know which one to choose, or can I choose any?

>> So what is the difference between DDR2-DIMM, SDRAM-DIMM, DDR-DIMM and so on?

I can't be bothered to explain.

>> How do I know which one to choose, or can I choose any?

Your motherboard can only accept one kind of memory. It also requires memory of a specific speed. There should've come some information with your computer.