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More RAM for XP Pro?


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#1 Rockrz

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Posted 04 February 2009 - 08:24 PM

I read somewhere (and now cannot find) of a way to get XP to read more RAM than it's 3gig or 3.5gig limitation.

Anybody know of a way to con XP (32 bit) into using a bit more RAM.

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#2 Platypus

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Posted 05 February 2009 - 06:57 AM

Welcome to Bleeping Computer.

The limit is set by how much of the 4GB address space provided by 32bit operation is available after essential hardware and system addresses are allocated. It's this that determines how much of the physical memory can be given an address for Windows to use. So there's no way to get any operating system to access more RAM than can be given an address.

You'll read many suggestions of ways to get around this. Some of them are simply wrong (eg using the /3GB switch), some are out-of-date (eg using the /PAE switch) and now only apply to server versions of Windows.

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#3 czhang

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Posted 05 February 2009 - 01:33 PM

There is a 64 bit version of XP Pro, which can read more than 4GB of RAM:
http://www.newegg.com/Product/Product.aspx...N82E16832116378

However, an OEM version costs about $140, and it's not guaranteed that you can find all the drivers for your hardware and that all your software will be able to run.




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