Does Windows XP use all the memory in my system


Howard Weiss

My system processor is a Processor x86 Family 15 Model 2 Stepping 5
GenuineIntel ~3199 Mhz. I have 8 GB of memory in the system. I am running
Windows XP Professional Version 5.1 Build 2600.xpsp_sp2-gdr.050301-1519 SP2.
About Windows tells me that the Physical Memory available to Windows is
3,406,812 KB or about 1/2 the actual memory in the system. Is Windows using
all 8 GB and, if so, how?



Bert Kinney

Hi Howard,

WindowsXP supports up to 4gb of ram. More than that will be ignored, and
could cause system instability.

For more information take a look at these articles.

Virtual Memory in Windows XP by Alex Nichol MS-MVP:

The amount of RAM reported by the System Properties dialog box and the
System Information tool is less than you expect after you install
Windows XP Service Pack 2

RAM, Virtual Memory, Pagefile and all that stuff

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