Mac Pro and Windows 7 64-bit not cooperating

Hi everyone,

I have a Mac Pro (1,1) on which I'm running Snow Leopard and Windows 7 Pro in boot camp.

I recently upgraded my Mac to 10GB of RAM, and have noticed when I boot into Windows (currently the 32-bit version), it's telling me I have 1.99GB usable.

I figure this is requiring me to install the 64-bit version. This is where I'm stuck.

If I try to run the BootCamp64 installer off of the Snow Leopard disk, I get a message saying "This installation package is not supported by this processor type. Contact your product vendor".

If I put in the W7 64-bit disc and run setup, I get a message that says "This installation disc isn't compatible with your version of Windows. To upgrade, you need the correct installation disc."

Also, when I run the Windows 7 Upgrade Advisor, it tells me (under the 64-bit tab) that my Apple memory controller GPE event is not compatible.

I'm not sure if the problem stems from the steps I took to get Windows 7 on in the first place. I was running XP home on Boot Camp and bought W7 Pro upgrade. I changed my Boot Camp drive to NTFS and expanded it from 15GB of space to 50. Then I booted into XP, put in the W7 disc, and installed (I was still running Leopard at the time).

Am I missing a step? Is my process of installation to blame? I'm not quite sure what to do at this point.

I'm grateful for any help.

Thanks for the reply, balamw, and thank you for posting that link.

I'm going to give the install process outlined in that article a try.

My main concern about my system at the moment is the "Apple memory controller GPE event is not compatible" message I'm getting from the Windows Advisor. My purpose in going from the 32-bit version of W7 to 64-bit is gaining access to the additional 8GB of RAM I have installed, and I don't know if the memory controller issue is going to keep me from doing that.

When I click "properties" on "my computer" in W7, it says "10GB (1.99 usable), so I'm hoping that means it won't be an issue.

Hey balamw... thanks so much again for posting here.

I followed this link that was posted in the thread you directed me to, and I am happy to say that I am now running W7 64-bit on my Mac Pro 1,1... AND it's recognizing the full 10GB of RAM.