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Firstly let me say I've seen a number of similar questions on SuperUser, and I don't think this is a duplicate. (Most address 4GB RAM installed. I have 6GB)
I have Windows XP 32-bit running on a i7-based Xeon system with 6GB of RAM. I only see 3.5GB of RAM in Windows.
Is there any way to squeeze more visible RAM out of this set up? Even an extra 1GB would be great.
Does having 6GB (vs 4GB) of RAM installed help at all? (I.e Even if I loose the 3.5-4.0 GB region, can I use the area above it?)
P.S. Will eventually move to Windows 7 64-bit, but can't for now.
2If the only difference with this topic is 4 vs. 6GB, there's no real difference. You're just a few years late on the computer upgrades, and people can now afford 6GB. – Daniel Beck – 2011-02-14T19:33:13.260
1From the PAE wikipedia article: "In computing, Physical Address Extension (PAE) is a feature to allow x86 processors to access a physical address space (including random access memory and memory mapped devices) larger than 4 gigabytes." Your system can only address 4GB, minus what's used for other devices (graphics), so there's 3.5 left. The issue is the same. – Daniel Beck – 2011-02-14T19:38:32.210
There is no difference between having 4GB or 6GB with regard to Windows XP's 32-bit memory limitations. You won't be able to squeeze out more. – None – 2011-02-14T19:39:28.993
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Dataram Ramdisk has the option of using the memory past the 4GB point that Windows cannot use, it would at least mean you can use that extra 2GB for something... http://memory.dataram.com/products-and-services/software/ramdisk
– Mokubai – 2011-02-14T19:46:58.770What's keeping you on XP? If it's only one or two applications, you may find yourself better served performance wise by moving to pro and using virtualization (Be it the free XP-Mode from Microsoft or another solution) – Nathaniel Bannister – 2011-02-14T19:37:45.830
I think this is a duplicate of http://superuser.com/questions/67444/is-there-way-to-enable-4-gb-ram-in-32-bit-windows-os/
– Natalie Adams – 2012-11-13T03:49:45.137