Yeah, I've already set up the RMA with Intel. So, that part is taken care of. I'm going to test the PSU to make sure it's not the problem (I doubt it is, but I just want to eliminate it as the cause). I've decided to use this as an excuse to move to a P35 board once the new processor arrives. I'll then RMA my current (650i) board and use the replacement in my HTPC.
Now I just need to decide on a P35 board (I'm leaning toward the Abit IP35-Pro), but that's a discussion for another forum.