Just an update, it's back up and running like before now, this is the weirdest thing I've ever seen.
There was no post, fans spinning at constant speed. So I took the ram out, put it back in 1 by 1, 2 out of 4 sticks will post, the other 2 won't (at my original overclocked setting). I tried a couple of more times, now the 2 good sticks still post but no bios image, however the fan does spin down and there is video signal, it's just blank.
So I removed the cmos battery, cleared cmos, put all 4 sticks back in, now the computer's back to life at stock settings. I loaded my o/c profile, and now it's back up and running at the original o/c speed completely stable....WTF
Also I think the original hiccup was due to the fact that I had a new USB dell keyboard plugged in while restarting, I find my computer wouldn't restart properly with that thing plugged in, if not black screen, then it gets stuck on "initializing usb controllers" until I unplug it....WTF