|What model motherboard do you have? There are several ways to find the answer to your question.|
For you, the simplest will be to visit www.crucial.com and let them scan your system. They will most likely identify your motherboard and advise ram specification.
Another way would be to read your motherboard manual.
If you don't know what make/model your motherboard is there are programs available for download that can help you identify your system.
This is one such:
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