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Ok, simple question, plz stick to it. Even with PAE enabled, M$ has artificial limitations, and even more in sp2-3. So its not a technical or architectual limitation (there are patches for vista & 7 32bit).

So, does anyone have that patch?

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closed as off topic by Ƭᴇcʜιᴇ007, 8088, random Dec 8 '12 at 4:27

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HEY, YOU CLEVER MORONS THAT VOTED TO CLOSE MY TOPIC, WHAT WAS WRONG HERE??? –  vampm Dec 8 '12 at 19:04

2 Answers 2

It's a licensing limitation for XP. You can't get around it with a patch. With Vista and Windows 7, it's a technical limitation (as the 32-bit and 64-bit editions use the same licenses).

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As far as I know, the patches for vista and 7 "hack" the kernel. So the patch for xp is somewhere out there. –  vampm Dec 8 '12 at 0:18

As far as I am aware, your hardware has to support the PAE. So the processor and motherboard would need to support using PAE. Microsoft acknoleges this publically on their website. http://msdn.microsoft.com/en-us/library/windows/desktop/aa366796%28v=vs.85%29.aspx and here http://msdn.microsoft.com/en-us/library/windows/desktop/aa366778%28v=vs.85%29.aspx

I've not been sucessful getting PAE to function and add memory past 3.5GB on any of my XP x86 machines.

Interesting that David mentioned it being a licensing issue. The second link basically concurs with this, but at the bottom of the page the information contradicts that. Though I think addressing memory above 4GB is limited to non process related tasks like memory sharing with video cards and RAM disks.

But sorry no, I don't have a "patch". Though it looks like on the first link they give you the commands to enable it. Might be worth doing some reading and figuring it out.

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No problem! Of course the hardware must support it (all harware 5 yo support it). As far as I know, PAE, by itself, inst doing much (it does but) because there are these limitations of M$ in xp. in Linux, pae works just fine: youtube.com/watch?v=8Hc4x02ujQs And I cannot test PAE in xp yet; I ll have a new pachine in 3-4 days with 8gb ram, so then I am going ot tell more about this. –  vampm Dec 8 '12 at 1:33
    
The windows 7 patches make PAE support act like PAE on windows datacenter by modifiying the kernel. So even though it is a licensing issue it can still be done also .. since windows XP pre sp2-3 could use PAE to some extent that could probably be patched back in. –  cb88 Jun 5 '13 at 19:00

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