Hiya,
My recommendation is that you make the paging file 2½ times the size of the memory installed ... ensuring that the Initial & Maximum levels have been set identically ...
ideally the initial size should be equal to the size of the memory installed and the maximum should be no more than 2½ the size of the memory installed ... however, I'd recommend that you set them both to 2½ times the memory installed to prevent fragmentation ...
that's the way I set all my machines up ...
Arthur