Re: [OM] question for Doctor Monitor, if he exists

[Chuck Norcutt]

On 32 bit Windows *application* memory is only addressable to 2GB. 
However, the operating system is capable of addressing more through the 
use of Intel's Physical Address Extensions (PAE).  On XP the limit is 
4GB but on 32 bit Windows servers it may be as large as 32GB.

Adding memory greater than 2GB allows the operating system to use the 
additional memory so that it's not in competition with the application 
for the same space.
<http://msdn.microsoft.com/en-us/library/aa366778%28VS.85%29.aspx#physical_memory_limits_windows_xp>

Chuck Norcutt


khen lim wrote:
> Good stuff you're writing here, CH. Much appreciated and to the point.
> Thanks. One thing I need clarification on. Just today, I heard from my
> Lenovo consultant that with Windows XP (32-bit, that is), system memory is
> only addressable to 2GB and no more. So there's no point in populating it to
> 4GB. I see that you have yours loaded to 4GB RAM, which prompted me to ask
> this with you.
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