So, here's something funny.... I have the same card as you and recently upgraded my computer to an i7 Quad core. I now get BSOD's *everytime* i boot up. It's basically a completely new build; new mobo, new cpu, new memory, new hard drive, new O/S install, new software install, etc.
I'll start the computer, it'll boot into windows and immediately blue screen itself. I turn it off and back on and then it'll run forever. After using it, I turn it off for the day, next day go to turn it on and BSOD!!
Anyways, just another data point.
I'm wondering if there is something with the EMU driver that can't handle quad cores because it worked fine when I was using Win7 64bit on a Core2Duo system. It is a beta driver after all. Is that the same driver you are using? 2.30?
I would experiment, but I've got an early morning flight for a business trip and I don't want to go poking around my computer tonight. Maybe you've got time this week to try it for us. Pull the card and remove all the drivers. See if it still BSOD's on you.
Maybe I really don't need this board anymore as I have another interface that works well. Hmmm... what to do...