Didn't know where to post so I did it here. Hi I am planning to install mavericks on my mac pro 1.1 I know how to do it but I cannot boot from usb because my graphics card is a non efi graphics card (asus radeon 6670) and I cannot install on another mac because I do not have access to one. So is the a way of booting to the usb drive without a boot screen or could you guys recommend me the cheapest efi graphics card.thanks in advance