First of all, no matter how much memory you put into your system, it ain't enough. And this is true for all or at least most of the operating systems.
Earlier this week Mark Russinovich wrote a blog post about "Pushing the Limits of Windows: Physical Memory." Needless to say, it is another great writeup from Mark and I highly recommend it.
Among other topics, Mark highlights these areas:
- Windows Server Memory Limits
- Client Memory Limits
- 32-bit vs. 64-bit
- Do You Have Enough Memory?