http://blogs.technet.com/b/brad_rutkowski/archive/2007/04/03/consequences-of-running-3gb-and-pae-together.aspxWell in short, your system could be unusable. Raymond Chen mentions it here how 3GB and PAE conflict with each other somewhat. I'm not going to dive into the subject too much as it was covered extensively by Raymond (link at bottom of post), but Ien-USTelligent Evolution Platform Developer Build (Build: 5.6.50428.7875)http://blogs.technet.com/b/brad_rutkowski/archive/2007/04/03/consequences-of-running-3gb-and-pae-together.aspx#2825577Mon, 04 Feb 2008 20:02:55 GMTd5e57398-b9ef-4490-9955-07cbb4e4a80d:2825577Crash Dump Analysis » Blog Archive » Crash Dump Analysis Patterns (Part 13d)<p>PingBack from <a rel="nofollow" target="_new" href="http://www.dumpanalysis.org/blog/index.php/2008/02/04/crash-dump-analysis-patterns-part-13d/">http://www.dumpanalysis.org/blog/index.php/2008/02/04/crash-dump-analysis-patterns-part-13d/</a></p><img src="http://blogs.technet.com/aggbug.aspx?PostID=2825577" width="1" height="1">