Hi, I've kept away from Windows for the best part of a decade but decided to boot camp vista ultimate on my new 2.4Ghz, 24", 4Gb, 320Gb iMac - for some reason windows only recognises 3Gb of memory - is that right?
The reduction in available system memory depends on the devices that are installed in the computer. However, to avoid potential driver compatibility issues, the 32-bit versions of Windows Vista limit the total available memory to 3.12 GB. See the "More information" section for information about potential driver compatibility issues.
They also list a workaround which involves going into the BIOS and playing around with some settings. However, trying to do that on a iMac that uses EFI instead of BIOS might be a bad idea... I don't know exactly how Boot Camp fools Windows into thinking there is a BIOS, or if there is some kind of legacy BIOS emulation in EFI. Either way, it's not something you want to mess with unless you don't mind breaking your new iMac
Yes it is the 32-bit version as boot camp only deals with 32b versions afaik. Thanks for the tip-off anyway.
Interesting, I didn't realise Boot Camp only worked with 32bit versions of Windows... I wonder if this will change with Leopard. I know that VMWare Workstation on Windows and Linux has experimental support 64bit OSes - anybody kow if Parallels or VMWare Fusion do as well?
Interesting, I didn't realise Boot Camp only worked with 32bit versions of Windows... I wonder if this will change with Leopard. I know that VMWare Workstation on Windows and Linux has experimental support 64bit OSes - anybody kow if Parallels or VMWare Fusion do as well?
Yes it is the 32-bit version as boot camp only deals with 32b versions afaik. Thanks for the tip-off anyway.
Boot-camp's *drivers* are 32bit, but all boot camp itself is is a mechanism for booting bios-based OSs on the Apple version of EFI and a pretty gui, I have XP x64 and Debian AMD64 booting perfectly fine on the Mac Pro I'm typing this one for example.
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I belive there is a limitation in the 32bit version which limits you to using 3GB of RAM (even though theoretically you should be able to access 4GB).
edit: found a Microsoft knowledgebase article about it: http://support.microsoft.com/kb/929605
The reduction in available system memory depends on the devices that are installed in the computer. However, to avoid potential driver compatibility issues, the 32-bit versions of Windows Vista limit the total available memory to 3.12 GB. See the "More information" section for information about potential driver compatibility issues.
They also list a workaround which involves going into the BIOS and playing around with some settings. However, trying to do that on a iMac that uses EFI instead of BIOS might be a bad idea... I don't know exactly how Boot Camp fools Windows into thinking there is a BIOS, or if there is some kind of legacy BIOS emulation in EFI. Either way, it's not something you want to mess with unless you don't mind breaking your new iMac
Are you using the 32bit or 64bit version of Vista?
I belive there is a limitation in the 32bit version which limits you to using 3GB of RAM (even though theoretically you should be able to access 4GB).
edit: found a Microsoft knowledgebase article about it: http://support.microsoft.com/kb/929605
Yes it is the 32-bit version as boot camp only deals with 32b versions afaik. Thanks for the tip-off anyway.
Yes it is the 32-bit version as boot camp only deals with 32b versions afaik. Thanks for the tip-off anyway.
Interesting, I didn't realise Boot Camp only worked with 32bit versions of Windows... I wonder if this will change with Leopard. I know that VMWare Workstation on Windows and Linux has experimental support 64bit OSes - anybody kow if Parallels or VMWare Fusion do as well?
Interesting, I didn't realise Boot Camp only worked with 32bit versions of Windows... I wonder if this will change with Leopard. I know that VMWare Workstation on Windows and Linux has experimental support 64bit OSes - anybody kow if Parallels or VMWare Fusion do as well?
Fusion support 64-bit guests. Parallels does not.
Yes it is the 32-bit version as boot camp only deals with 32b versions afaik. Thanks for the tip-off anyway.
Boot-camp's *drivers* are 32bit, but all boot camp itself is is a mechanism for booting bios-based OSs on the Apple version of EFI and a pretty gui, I have XP x64 and Debian AMD64 booting perfectly fine on the Mac Pro I'm typing this one for example.
Fusion support 64-bit guests. Parallels does not.
Cool, thanks for the info.