Stalker SOC XRAY Engine Memory Question ? Thread

Hi People,

Just wondering about the Stalker SOC XRAY Engine. I am currently using KYUZO84's Oblivion lost 2010 mod that I have additionally modded greatly myself with lots of extra weapons and items taking up more memory.

I now have to run the game of minimum graphics due to it kicking the game to desktop getting memory limit exceeded.

I am wondering If the XRAY engine has a set memory limit that it uses or is it only limited to what your computer can provide.

I am thinking of updating my mother board to 64 bit due to memory being limited to 3GB.

I am currently running

AMD Phenom II X4 850 Processor
NVIDIA 480 GTX Graphics Card
8GB Ram

Thanks