^sorry i didnt see the previous response
I don't know the exact specifics but you can put your OS on the drive -somehow- but you just cant have your os on it permanently (IE you just can't put the os, turn pc off, turn on and go to work directly to your ram disk, you would have to reinstall every single time)
Pretty sure it would work well with a custom imaged drive though.
@const, I'm sure you could but I don't know anything about dataram software unfortunately. I assume (the partition) its like any other HD where you just tell the install program where you want it to make the directories.