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Licensed Memory in 32-Bit Windows Vista / Windows 7


spootnack

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Hello guys

I was dealing to know if I must switch to x64 OS cause PAE Trick didn't really work... (another "urban legend"...)

Links about "3 GB barrier" / PAE :

http://en.wikipedia.org/wiki/Physical_Address_Extension

http://msdn.microsoft.com/en-us/library/aa366796.aspx

http://msdn.microsoft.com/en-us/library/ff542275%28v=VS.85%29.aspx

http://en.wikipedia.org/wiki/3_GB_barrier

http://www.vistarewired.com/2007/03/29/how-to-enable-more-than-35-gb-of-memory-in-32-bit-windows-vista

And finally, I found the graal !!

...That 32-bit editions of Windows Vista are limited to 4GB is not because of any technical constraint on 32-bit operating systems. The 32-bit editions of Windows Vista all contain code for using physical memory above 4GB. Microsoft just doesn’t license you to use that code...

Link for the great article :

Here

I tested ! See my post in "Guides & Tutorials" : HERE

What do you think about it ?

Cheers.

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Well, the first thing you have to note is that PAE is only optimized for "server-class" versions of Windows. With 32-bit, desktop versions of XP and Vista the limit is still 4GB, so there's very little point in enabling PAE. Is it dangerous to enable PAE? Not realy, because you can disable it fairly easily even if you have a device with an imcompatible driver. The worst case scenario may arise if you have your hard drives connected to a PCI controller card and its drivers have a problem and you end up corrupting data.

I like to mess around with Windows and experiment as well, but you'll be pretty board pretty quick with PAE I think. All you have to do is add a switch to the boot.ini file and you're done.

Another thing that makes messing with PAE somewhat useless is that 64-bit versions of Windows are much more mature now, and there's no need for PAE with a 64-bit version of Windows.

With that said, if you want to learn more about PAE and experiment, check out this page first:

http://www.microsoft.com/whdc/system/platform/server/PAE/PAEdrv.mspx

Lots of information there, direct from the source.

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Well, the first thing you have to note is that PAE is only optimized for "server-class" versions of Windows. With 32-bit, desktop versions of XP and Vista the limit is still 4GB, so there's very little point in enabling PAE. Is it dangerous to enable PAE? Not realy, because you can disable it fairly easily even if you have a device with an imcompatible driver. The worst case scenario may arise if you have your hard drives connected to a PCI controller card and its drivers have a problem and you end up corrupting data.

I like to mess around with Windows and experiment as well, but you'll be pretty board pretty quick with PAE I think. All you have to do is add a switch to the boot.ini file and you're done.

Another thing that makes messing with PAE somewhat useless is that 64-bit versions of Windows are much more mature now, and there's no need for PAE with a 64-bit version of Windows.

With that said, if you want to learn more about PAE and experiment, check out this page first:

http://www.microsoft.com/whdc/system/platform/server/PAE/PAEdrv.mspx

Lots of information there, direct from the source.

I don't speak about PAE (cause it doesn't really work) ! Read my other topic and the big big and very interesting article !

Cheers.

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