Since I am usually rendering with the values:
Render to screen, broadcast, 1600 x 1200px and 600dpi
and because I am a real eco-system fetishist
my computer in the past often crashed because
it was out of free resources (RAM).

Today I normally follow this procedure to set RAM free:

1. I click all my wanted rendering options.
2. Then I save the vue-file and totally close down the program.
3. When the free resources were less than 50% I then really even restart my PC.
4. Then I re-open the vue-file that I want render via the recent files link and finally just click at the render button.

This procedure often helped a lot and bewares of the most hated reducing of the instances in the ecos or changing the atmosphere to a less complicated!

Best Regards,

Bernie

P.S. ;-)

Keep cool and fight for the right of others
to have a different opinion than you have!

;- ) Bernie