This may sound weird but I've been through the worst of it.
My Bloodrage doesn't boot at all above stock clocks (cannot be bothered to test the exact MHz) with the Xai plugged in!
I used to have it happily at 4GHz 24/7 and for some reason I rebooted one day and couldn't keep the overclock since then. I searched for a week trying to figure out what the cause was and then I looked at the post code on the LCD and it said number 50. So I unplugged all the USB devices I had except for my keyboard and by elimination it came down to my mouse. Right now running at my previous overclock with no problems at all. Now I've grown into unplugging my Xai right before rebooting and I ALWAYS unplug it after I finish using the PC. It's tedious yes but I love the mouse too much
I'll get another motherboard soon though