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Insufficient Memory Error - Zbrush (32 bit problem?)

Jonathan85
polycounter lvl 9
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Jonathan85 polycounter lvl 9
Hello, i have windows 7 64 bit, 12 GB ram, Zbrush 4r6, around 10 GB virtual memory in windows i think. I succesfully imported a mesh of around 12 760 000 polygons (a scan) into zbrush. But when i try to do several things (for example close holes on the mesh), the zbrush just pops up an error message regarding insufficient memory and crashes. I tried running it with admin. right, settings parametr in the preferences->memory (or what) to sufficient values, but it still crashes... 12 GB Ram should be enough for it, but it crashes anyways.

Could it be because 4r6 is only 32 bit program and is able to use only up to 4 GB of ram, but the mentioned file needs more? could i fix this problem with zbrush 4R7 and running the "experimental" 64 bit version of it?
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