Quote Originally Posted by cliffy View Post
A user over at OCUK has done this although even at 1Ghz couldn't get all 4 cores prime stable

http://forums.overclockers.co.uk/sho...php?t=17977875
This is the biggest concern. Since the unlocked core is really defect instead of just failing some power profile.

Also the BIOS unlock seems to be a bug rather than feature. So I would expect it to be closed in future revisions.