I recently picked up a 2006 Pro (2.66), and the bottom RAM slot seems to not work. It has 8GB of RAM, 2 4GB modules. If I put both modules on one riser and mount it in the top slot, OS X recognizes all 8GB. However, if I have one on the top and one on the bottom, only 4 GB is recognized, and if...
I recently used the Pikify3.1 boot.efi to update my 2006 Mac Pro 1,1. It worked beautifully at the beginning. Some Editing softwares were not being recognized so I figured that I needed to do the update so I did. After the update my machine won't boot up and it gives me a folder with a question...