
RAM modules that are at least 2GB in size.A blank hard drive or partition available in your Mac Pro.The top graphics cards you can use are the AMD 200 series. ATI Radeon HD 2000 series graphics card or better.Keep in mind that the use of a Maxwell NVIDIA card will require you to install and use their web drivers. The top graphics cards you can use are the NVIDIA 900 series or Maxwell Titan X. NVIDIA 8000 series graphics card or better.In this article I will explain how to put OS X 10.11 El Capitan on your 1,1/2,1 Mac Pro. The problem with the 1,1/2,1 (2006-2007) Mac Pro is that the latest officially supported operating system is Mac OS X 10.7 Lion. In my last article on how to flash the 1,1 Mac Pro to a 2,1 Mac Pro firmware I didn’t mention how to upgrade the operating system.
