Originally Posted by Core Game Servers
16gb ram is probably going to be way overkill.
Agree, i have recently build a Dual XEON X5450 server which has 8 physical cores. 8GB ECC RAM has been more than enough.
To give you guys a more spesific description about PAE kernels:
A 32bit Linux system with PAE enabled kernel can access up to 64GB of memory (assuming the mainboard is capable of having that amount).
Only limitation is 2GB per process allocation with a PAE kernel. Of course it´s better with a 64bit kernel because no tricks needs to be done to access full memory range.
Only those games which have native 64bit server binaries actually really benefit from a 64bit kernel. However according to my recent tests with multiple games, a 64bit kernel runs just fine 32bits games as well.
For years i used only 32bit support when ia32-libs were not that good, nowadays i havent experienced any issue so far. I speak with over five years experience, this is not any copy/paste from another page.