Overclocking Duron 1.1 & 1.2 GHz?

One tip, you may want to change your thread title. When I first read that, I was kinda surprised.... I've never owned an AMD in my life, so I wouldn't know.

Falling down stairs saves time

It really depends on how high your board will allow you to overclock. I had a Duron 1GHz, but the board only let me go up to a FSB of 112, and all went well. You should be able to OC that duron as high as the board will boot at without much trouble, but stressing out the AGP/PCI buses should be more of a concern than the CPU, as it will be fine with the morgan core. You won't need to adjust core voltages, the duron overclocks very well. Keep the temp at or below 65C underload and it's fine. As for RAM, it depends if your board runs 100/100 (CPU/mem) or 100/133. Most likely 100/100 so if it's PC133 you'll be fine as the board prolly won't boot much higher than a FSB over 120, if it's 100/133 you'll still be good as long as the RAM is name brand and higher quality. Most good quality PC133 RAM should be able to go 150 or better w/o problems. Good luck!