I had 6gm of RAM (2gb and 4gb) in my laptop. Wanted to upgrade to 8gb so I bought an additional 4gb online. When I got it I found that it is the same type as the others (M471B5773DH0-CH9) but they were made in two different locations. Original made in China and the new one made in Philippines. They look almost identical, but the green color of the boards are different. Will this make a difference in performance or should i get two made from the same place? thanks