I was reading a blog post from Chad Boyd – http://blogs.msdn.com/chadboyd/archive/2007/03/24/pae-and-3gb-and-awe-oh-my.aspx. He has very detailed and excellent information about /3GB PAE and AWE. It made my understanding more clear. Here is the summarized version: For 32-bit OS Memory Addressability Limitation: By default, the 32bit OS can only ‘see’ and use up to 4gb of memory,…