Hello, I am a brand new member on this forum. I have been utilizing it for years and I usually find my answer very quickly. However, I have searched and found discussion regarding my issue, but nothing directly spoke to the question I have. If there is a simple link someone can provide to a similar discussion I would be grateful. My question is about RAM in the mac pro. I have a 8 core, 3.0 machine that has 8GB of RAM installed. The configuration is set up as 1GB modules in 8 slots. Can I buy/install 4, 4GB modules and remove 4, 1GB modules? If so, what would the correct configuration be? From what I've read, keeping the same size together is the way to go? So, 4,4,4,4 and 1,1,1,1 ? Or should they be staggered like 4,4,1,1 and 4,4,1,1 for a total of 20GB? OR is this entirely a bad idea? Should I start over and go 2,2,2,2 and 2,2,2,2 for a total of 16GB. Just not sure about the logistics of what these boards like and if there are bottle necks I'm at risk of here. Any help is greatly appreciated and I know many others would benefit from a discussion on this matter.