Thats kinda odd Lamby, my 1210 will not go past 340fsb and seems to have difficulty going past 334 as well. Mine works much better though, its an HE version and only needs 1.35 to get to 334fsb, but it takes 1.5v to go up to 340, and any higher it wont boot. I assumed it was my MB, even though my board is known to get to 500fsb. But perhaps it is my processor not wanting to go above 334fsb :'(