32-bit allows for addressing 4GB of memory. Since Windows can directly access the video card memory (look at the DirectX API), that means only 3GB will show up in system properties. But don't worry! The 4GB is there and can be used. It just doesn't show up in the properties. You just can't use it all at once, since it wouldn't know how to address it.
See Guyver's post for how Windows XP uses the memory.
IMO, anything over 2GB on XP is a waste, unless you actually have an application that will greatly benefit from the extra memory.
See Guyver's post for how Windows XP uses the memory.
IMO, anything over 2GB on XP is a waste, unless you actually have an application that will greatly benefit from the extra memory.
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