This is actually one of those topics I've seen discussed and rediscussed extensively, yielding more confusion than answers mostly.

What I want to know is if I set the /3gb switch on a 4GB server, is that all I need to do?  From what I've read, this alone will not give all 3GB to SQL Server because the 32 bit architecture will still not address space beyond 2GB to any one application.

If this is the case, do we need to configure /3gb and PAE with AWE even on a 4GB machine?