Hey Guys, I just upgraded the CPU's on my mac pro 1,1 from 2x2.66 dual cores x5150's to 2x3.0 quad cores x5365 and it boots up like a charm but I am having trouble upgrading the firmware from mac pro 1,1 to mac pro 2,1. I am using the "Mac Pro 2006-2007 Firmware Tool" and when it downloads the files and shut down, and then I hold down the power button at startup till the light flashes and goes through the process, it just comes back saying that its still a 1,1 and doesn't fully recognize the processors. It says 2 x 3.0 Unknown (but recognizes that it's 8 cores).
Anyways, how do I go in and upgrade it from 1,1 to 2,1?