Is it possible to have say, 8gb of RAM installed and be able to use the ~4.5-5 gb of unusable RAM as a RAMdisk or does the operating system have to be able to address it to use it, even as a RAMdisk?
I suppose if the OS had to access it you could enable PAE couldn't you? In PAE the applications still can't use more than the 32 bit limitation unless they are coded for PAE but the system could at least use it as a RAMdisk for temporary files (opening encrypted documents, photoshop, swap partition, Windows paging file or anything else that would benefit from using a RAMdisk).
I know how to set one up but don't know if I should go ahead and order more RAM. I have another 1GB on the way anyway but if I had more I could use it as a RAMdisk in my 32 bit operating systems and use it normally in my 64 bit operating systems.
Also, what are some other good uses for a RAMdisk?