We recently setup a Windows Server 2003 R2 SP2 based server on a 64-bit Intel XEON platform. There are 2 quad-core processors and currently 4GB of memory (2 x 2GB). Due to the software that the server was pruchased to run not being 64-bit compatible, we are running the 32-bit version of windows.
All-in-all we are running just fine - I checked with Intel before making the purchase - the processors are backward compatible.
We may need to utilize more memory - the server will ultimately host as many as 8 TS sessions running a program that is rather hefty on memory usage.
Can we go beyond 4GB of physical memory and will there be a benefit of doing so?