I've only read about the 780 USFF with 8gb but not the 760 USFF. That's why I was asking. Thanks for the reply.
Did you try this? I have 2 x 4GB I can throw in my Optiplex 760 to try this if you haven't yet. I have a server with 24GB just laying around collecting dust, so I might want to salvage 2 sticks to put in my Optiplex 760 that has 6GB right now.