Original post by: AussieMac ,
You should be able to put up to 2GB in each slot totalling 4GB overall - not 3GB. I don't think you will really notice the results that much but you could do some benchmark tests and see if there is a performance increase. It is also recommended that you put the same type and size of ram in each slot to make the computer run more efficiently. Just in case you should also check to see that the RAM has been recognised - Go to the Apple menu and click about this mac...