I recently bought a 2011 macbook pro 15. It came with the standard 4gb of ram but i would like to upgrade it. About 9 months ago i upgraded the ram in my 2010 mac mini with 8gb 1333mhz chips. They have been working fine but since my MBP is my new primary computer i was thinking of just switching the chips. The chips in the mini are used obviously but is it ok to just switch the chips between the machines?