So like the title says I have a Mac Pro I bought in January 2009. I am almost positive it is a 3.1 (will check when I can connect and download Mactracker) But looking at what I remember and the specifications it must be a 2008, 3.1, after all it was march 2009 the next model came out. I want to boot camp, currently I camp xp but I need to run some software that is windows 7 x64 only. I also want to take advantage of more than 4 gig ram. I know the specifications say it is a 32bit ["32-bit in Mac OS X (client), 64-bit in Mac OS X Server"] (from wikipedia) So, has anyone installed windows 7 x64 on a mac pro 2008? Mostly I want to know this so I know if I am upgrading my Ram from 2 gig to 4 (since 32 bit windows can only handle 4 gig) or the 10 I want. I also do not want to buy windows 7 twice.