Running Windows 7 under bootcamp on a 1,1 mac pro

[lloyd709]

I want Windows to see more than 2 Gig of my 12 Gig of memory on my 1,1 2006 Mac Pro. I'm not sure if it's possible though.

I'm currently running Windows Vista 32bit. I think I read somewhere that you can't run Vista 64 bit or Windows 7 on a 1,1 mac pro - which you have to do to see more than 2 Gig of memory. Is this the case? Is anyone running Windows 7 64 bit under bootcamp on a 1,1 mac pro (and seeing all the memory in the computer)?

I can't get an answer on the Windows Forum so I thought I'd try here as I think it's a 1,1 Mac Pro issue.

[DualShock]

http://forums.macrumors.com/showthread.php?t=702845

[lloyd709]

http://forums.macrumors.com/showthread.php?t=702845

That's great - seems like you can install Win 7 OK.

But I'm sure I read (in the same place that I read that you couldn't install Win 7 though) that you can't use more than 2 Gig of the memory.

Would be great if a Win 7 Bootcamp user on a 1,1 2006 mac pro could confirm that all the memory in the computer is being used - before I go out an buy a copy of Win 7.

Thanks

[DualShock]

I can confirm that's the case on a 2008 3,1 Mac Pro. All memory is seen by Windows 7 64-bit (I have 10 GB in mine). But yeah, maybe someone else can chime in with 2006 1,1 info.

[hbryan]

That's great - seems like you can install Win 7 OK.

But I'm sure I read (in the same place that I read that you couldn't install Win 7 though) that you can't use more than 2 Gig of the memory.

Would be great if a Win 7 Bootcamp user on a 1,1 2006 mac pro could confirm that all the memory in the computer is being used - before I go out an buy a copy of Win 7.

Thanks

the 1,1 has 32-bit EFI, which means no 64-bit Windows 7 for either one of us. :(

[hms84]

I did this and worked for me, Mac Pro 1,1 and WIN7 64-bit.

[Mackilroy]

the 1,1 has 32-bit EFI, which means no 64-bit Windows 7 for either one of us. :(
Wrong. I have Windows 7 64-bit installed on my 2006 Mac Pro. I only have four gigs of RAM, but it sees all four gigs.

lloyd: go out and buy a copy of Win7. I did. It'll work fine.

(disclaimer: I didn't use Apple's Boot Camp drivers, I just used it to partition the drive so I could install Windows. I let Windows download drivers manually for the most part)

[nekonoko]

I have a MacPro1,1 with 20GB RAM running Windows 7 x64. All RAM is seen and works just fine.

[lloyd709]

I have a MacPro1,1 with 20GB RAM running Windows 7 x64. All RAM is seen and works just fine.

Thanks for the confirmation.

[kgapp]

the 1,1 has 32-bit EFI, which means no 64-bit Windows 7 for either one of us. :(


This is definetely a false statement. I have Win7 64bit running on my 2006 MacPro 1,1 and all 8gb of memory are fully recognized. Just follow the instructions in the link a few posts back and you will have it up in running in less than 2 hours. Its a couple of small hoops to jump through but its easy and it works.

[Bob Kiwi]

Mac Pro 2,1 here, 9GB RAM all seen

Followed the initial linked instructions to modify a Windows 7 x64 ISO and get the Apple Boot Camp drivers and everything works great.

[Cindori]

the 1,1 has 32-bit EFI, which means no 64-bit Windows 7 for either one of us. :(

efi is 32 bit yes, but the bios emulation is 32/64 bit

[ghislain]

I want Windows to see more than 2 Gig of my 12 Gig of memory on my 1,1 2006 Mac Pro. I'm not sure if it's possible though.

I'm currently running Windows Vista 32bit. I think I read somewhere that you can't run Vista 64 bit or Windows 7 on a 1,1 mac pro - which you have to do to see more than 2 Gig of memory. Is this the case? Is anyone running Windows 7 64 bit under bootcamp on a 1,1 mac pro (and seeing all the memory in the computer)?

I can't get an answer on the Windows Forum so I thought I'd try here as I think it's a 1,1 Mac Pro issue.
I have installed Win 7 64 on my 1,1 2006 Mac Pro. The 6 Go RAM are seen. No problem

[nanofrog]

efi is 32 bit yes, but the bios emulation is 32/64 bit
Exactly.

EFI32 only prevents users from running K64 versions of OS X and some graphics cards.