Memory limitation of 32bit

Guest2

Guest2

Guest2

Soldato
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I am considering upgrading from 2gb windows xp to 4gb windows xp. What is the memory limitation of XP?

What else is needed to go 64bit Windows 7? (apart from the OS disk) Do you need 64bit hardware like processor?
 
4gb will be fine in XP. If you want to run any more than that you need a x64 os to recognise it all. All modern processors are x64 bit, so you should not have to worry too much.
 
Just doing a small, cheap upgrade from 939 x2 3800+ 2gb > 755 E2140, 4x 1gb OCZ 6400 Plat series DDR2 800 Mainly to get rid of older ide hard drives.

I will be clocking the 2140 to the same as i have my 3800+ (2.8ghz) or more if i can
 
E2140 is 64bit compatible (as are most cpu's under 3 years old), and unless it's a bad chip should be able to get to around 3Ghz.
 
You don't get full use of your 4 GB of memory under a 32-bit operating system because while the maximum address space they can access is 2^32 = 4,294,967,296 byes or 4,096 MB (4 GB), hardware such as your graphics card with its 512 MB or 1,024 MB of RAM need to be mapped into that space resulting in less free RAM. Other hardware also needs to use this space. This is why no 32-bit operating system has access to the 4 GB.

If you're thinking of upgrading to 4GB or more of memory then you really need to be installing a 64-bit operating system to use it all. This will allow to use the full amount of memory you have installed and you can still fit graphics cards with lots of onboard memory too.
 
Only Windows has an issue of 4gb(minus reserved) limit on memory for 32bit os. OSX and I believe *nix can address more than 4gb on 32bit versions
 
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