I took 4GB of 800MHz RAM from my iMac and want to give it to a girlfriend of mine to put in her white Macbook 2,1 2.16GHz. The bus speed in the Macbook is 667MHz and the RAM from the iMac is 800MHz. Questions: 1. Will her MB recognize more than 2GB RAM? Maybe accept 4GB but utilize 3GB like my MBP 2,2. 2. If the MB will accept more RAM, will it accept this 800MHz RAM and only run at the bus speed of 667MHz?