HP Media Center model numbers, what does the letters and numbers mean?

Question

Does anyone know what the model numbers of the HP Media Center Computers mean?  What does the 'm' at the beginning of the model number mean and what does the 'n' at the end mean?  How do they come up with the numbers and do they have any special significance? I have a HP Media Center m7658n.  I am looking for a motherboard to replace my original but the clostest one I can find is a HP PAVILION MEDIA CENTER M7480CH-A M7560A MOTHERBOARD.  Does the 7560 mean it's of lesser quality than the original and what is the difference between the 'a' and the 'n' at the end of the model number? 

Answer 1

paullevy,
Can I ask why you want a replacement board?
The "m" means Media Center. The "n" denotes US and Canada.   In the 7560, the "a" is New Zealand.
Your board is a Leucite,   Specs here   googled
If you were to purchase the wrong board, your OEM Windows will cease to be 'activated'.
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