iMac RAM memory update

Hello!

I have an iMac 27 "(mid 2011) with four memory RAM locations." Two locations are the original memory of 2 GB (4 GB total). Now, I bought two 4 GB memory. Can I put these new memories in the free slots, or do I have to remove first the 'old' and put new ones in place? The 'old' works with the new?

Simply put the new ram in the empty slots. There is no advantage to win by moving the ram of origin.

Tags: Mac

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