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:
http://aumha.org/win5/a/xpvm.php

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
http://support.microsoft.com/kb/888137/en-us

RAM, Virtual Memory, Pagefile and all that stuff
http://support.microsoft.com/kb/555223/en-us