So I bought my Macbook in August 2007 and want to upgrade the RAM to 3 or 4GB. It says the max it can support is 3GB, so what would happen if I put two 2GB sticks, instead of 1GB and 2GB sticks? I read in another thread for a different macbook that even though apple says it can only take 4, it can actually support 6. Is this the case for all macbooks? What is the best brand for these macbooks? I'm using Snow Leopard 10.6.5 Don't know anything about computers, so I'll put the info up just in case: Model Identifier: MacBook2,1 Processor Name: Intel Core 2 Duo Processor Speed: 2.16 GHz Number Of Processors: 1 Total Number Of Cores: 2 L2 Cache: 4 MB Memory: 1 GB Bus Speed: 667 MHz Thanks for any help!