I searched forums but did not find results about this, so I am here to share!
You need pair of red/cyan 3d glasses, and this program/driver:
http://www.iz3d.com/driver
It's very simple, you install the program, run it and 'enable driver', start up achat and there will be instructions and hotkeys on the screen how to set up the 3d convergence and all of that. You don't need to log in to achat all the way, my suggest is to configure it at the login menu.
Have fun!