Wait wait wait, you're not referring to ME with my "smartass" comments are you? Cause uh, when you got a chip that doesnt boot as an x4, chances are you aren't gonna "persuade" it to boot as an x4, thats why I said just get an x4. But regardless, Im sure your zero rep, and your entire 5 posts (so far) are gonna get you far on these forums. Especially when one of your first posts is disrespect. So, congrats, you've managed to disrespect someone who's been in this thread since almost day one, has 100x times more experience with this board, and respect from his fellow forum members here in the thread and the entire forums.
Anyway, I'm still willing to help. You should probably try just 'Unlock CPU cores' with ACC disabled. I unlocked a 555 for a friends build with just the unlock option, but other than that, I dont have any unlocking experience.
1.3v NB is fine, that comes out to about 1.35-138v in reality. CPU vcore shouldn't need anymore than 1.5v to get to 4ghz, let alone help unlock the cores. Boost your CPU-NB volts to about 1.3 too, and boost PLL a couple clicks up just because. Hopefully you can unlock the chip, nothing better than a $60 quad PhII,
But seriously, the only reason I made a "smartass" comment is because it seemed pretty common sense to me. IF you by two dual cores and they dont unlock, just get a f***ing quad, LOL