When i render a big file in 3dmax with the maxwell render it says not enough memory and order me to close max?

i like using maxwellrender very much but it needs very long time to render interiors,do any one know why?,when i render a large max file which have millions of faces it says a message not enough memory and i have to close the program,why?does it have something with the RAM?When i render a big file in 3dmax with the maxwell render it says not enough memory and order me to close max?
Could be - how much RAM do you have? You could also try increasing your virtual memory.

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