What windows you have? I assume it's 7 or 10. I made a google search: windows page file on separate disk
One of the results shows the images what to set for Win7: https://superuser.com/questions/237813/how-can-i-move-the-page-file-to-another-physical-disk-location
There's a similar result for Win10 too if that's your OS: http://winaero.com/blog/how-to-move-page-file-in-windows-10-to-another-disk/

I hope that this is what you needed. Good luck.