So, I was fooling around with a new MoBo (Gigabyte P31 DS3L) and started looking around in BIOS. Never OC'd before and am really not into it, but figured I'd give it a shot. Played with a few settings, upped the Bus speed, and got this:
Stock D 940 is 3.2Gh. I got this up to 4.1Gh and it was stable
Didn't play with voltage or anything crazy either. Stopped after this because I had over things to do. Really not that into it, but it was kinda of fun 
Stock D 940 is 3.2Gh. I got this up to 4.1Gh and it was stable