Wasn't really sure where to post this, since 4ghz isn't really impressive anymore. I felt i needed to post it somewhere though, because i'm pretty pleased with it. From 2.8ghz to 4ghz on stock voltage, fan, and a pretty damn crap motherboard.
Was having some serious problems even getting it to boot past 2.9 at first, and multiplier is locked... upwards. Decided to try decreasing multiplier and increasing FSB, and to my amazement it worked. So far i've seen a 35% increase in performance across the board. Pretty pleased with it. Temperatures seem fine too, and so far so good as far as stability.