Hi,
To find the memory needed for your two motherboards this TechTV article just might help.
http://www.techtv.com/callforhelp/shownotes/story/0,24330,3575966,00.html
The memory article is about half way down.
Darrell
http://home.pacbell.net/dbk4297/
Darrell,
http://home.pacbell.net/dbk4297/