Hmm, I feel I should make an update here... I flashed my motherboard to the 1004 beta 12 BIOS a couple of days ago, I hadn't checked for any increased CPU OC-ability but I did just now for the heck of it... with the new BIOS my chip WILL now hit 133 FSB, with 1.65v, can't boot anything properly but I did get into ME at 1.675. I've already hosed my XP partition a few times with OC instability so ME is my initial testbed now. 🙂 All I do in ME is play old games that XP doesn't like, so no big deal if it gets thrashed.
But, since these ASUS boards overvolt so much, the actual VCore at the 1.675 setting is more like 1.69-1.74, and that's just too much for me, esp. considering I would likely have to jack the VCore setting up to 1.7 to stabilize at 2.4... nah. I don't think this chip is destined to do much more than 2.25 for the long haul, but it's not as poor as I initially thought.