I've found so far, using Asus A7N8X(rev. 2.0) and XP2100+ t'bred, unlocked, "B" version, that it will reach a higher mhz at a multiplier of 17 than at any other ones I've experimented with. Simple TT Volcano cooler,6Cu+ with mobo's auto fan-speed control. Has anyone else found this to be true? Don't remember the exact numbers, but close to something like 2.28 ghz vs.2.17 ghz with respective multipliers of 17 and 13. I'm still using a mixture of Crucial and Kingston PC2100, and Corsair 2400 ram for total of 512mb. (Got 512 mb of Kingston HyperX PC3500 ordered). Curious to see what others have found--or will find if you try it at 17. sdlomi