I would try for it all at first... when i did mine, i pushed it right to 9.5x100 @ 1.85v because it's known that they go that high, why waste your time working upto something you're probably gonna get. Work backwards, I'd suggest 11x100 at 1.85. If you hit that you can try for more but most likely won't get it. From there you should work on stability at a lower voltage so keep dropping it .25 uptil you crash. Once you've found that voltage/mhz equilibrium i would knock down the multiplier and bring it up to the same speed using fsb if possible (and if you have quality ram). So if you can get 11x100 at 1.8v let's say, try getting 10x110. The reason for this is through my own experience and benchmarks i've found very marginal differences in cpu performance at the same speed and if you increase the fsb you're speeding up your memory so it's great. Make sure to use the CPU Plus mhz for this as it does not affect the pci bus (will always be 33mhz no matter what fsb)... that's just my $.02