Just thought I'd share my first O/C experience with you all. I had my compute rup to 225 FSB on 9/10 ram divider(my lone crucial 1 gb stick doesnt like going much over 200 mhz). So, with success thus far, I decided to push my cpu further. I eventually wind up at 240 with a 5/6 divider, keeping the ram at a nice 200 mhz. First the computer won't load, then when it finally does, I get far enough into prime to get the rounding error(.5 instead of .4 or something like that) which, as described by the O/C guide, means I've pushed my memory too far, but it's only at 200mhz...WTF!!!! Sitting here for 30 minutes trying to figure it out(and mildly cursing at the computer), eventually I realize that I left the HTT(LDT, whatever) multiplier at 5, bringing the total to 1200mhz...wooops. Took it down to 4x, increase cpu voltage to 1.425 for good measure, and it's nice and stable now. 