Ronald L. Parker <ron### [at] farmworkscom> wrote in article
<34e### [at] 100233>...
| On 11 Feb 98 14:12:17 GMT, "Tristan Wibberley"
| <tri### [at] compaqcom> wrote:
| 
| >Be careful about upgrading RAM to more than 64Mb, I have heard (though
I'm
| >not sure that it is right) that to access RAM addressed over 64Mb, RAM
| >swapping must occur, I'm a little surprised by this since in protected
mode
| >(I think, or is it real mode - one emulates the old, dumb memory
| >addressing), 386+ can address upto 4Gb without problems. So it may be
| >prudent to keep you RAM to 64Mb or less unless you need more to avoid
| >swapping (you will need a very complex scene, or you will need to run
the
| >windows version of povray).
| 
| My understanding of the 64Mb problem was that some Intel chipsets
| don't perform caching of RAM over 64Mb, which makes memory above the
| 64Mb mark significantly slower.

Aaah, that'd be it, but if you use SDRAM, the speed lost is *almost*
immeasurable.

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