Hi guys. Just replaced the ram of my new Late 2011 MBP, took out the stock 4GB 1333Mhz DDR3 ram for Kingston's 8GB 1600Mhz DDR3. So, thinking of what to do with the old ram. I definetely want to keep it around in case I ever sell my new MBP, or in case I get kernel panics with the new RAM. So my wife's comp is a Late 2008 13 " Unibody Macbook ( the original unibody, now its considered a MBP). Hers has 2GB of 1067Mhz DDR3, so I would like to put my idle 4GB 1333Mhz into it. But I dunno if it will be recognized / if its a good idea. I don't care if the Late 2008 MB doesn't run the new RAM at 1333Mhz, its fine if it recognizes the 4GB at 1067Mhz as long as it won't cause kernel panics. Anybody know/ tried this before? In case you need to know, my wife's 2008 Unibody MB is a C2D 2.4Ghz, Macbook 5.1. Model, Boot ROM Version MB51.007D.BO3, running Snow Leopard ver. 10.6.8. Thanks in advance!