How to generate a complete memory dump in case of Windows XP crash or deadlockHow to get complete memory dump:By default the operating system creates a small memory dump that is not enough to find out the reason for the failure, a complete memory dump is necessary for it. Configure it the following way:
right-click
My computer icon and select
Properties >
Advanced >
Settings >
Start-up and Recovery >
Settings >
Write debugging information >
Complete memory dump 
In the same section choose the folder where the created dump will be created. By default this file will be created by the operating system in its own folder in
MEMORY.DMP file. You can choose any folder name in the attached field.

reproduce the problem once again
make sure the complete memory dump file has been created successfully
InformationIn order to get a complete memory dump from computers that have
4 GB RAM or more, it is necessary to use the
/MAXMEM switch in the Boot.ini file. To successfully create a memory dump, one of the page files on the system partition must still be
1 MB larger than the amount of
RAM installed in the computer. More detailed information you can find in the
article 108393 in the
Microsoft Knowledge Base.