icecool83, only +200 mhz stable? How much does your AGOIA go up? What RAM and mobo do you have? My PC craps out at 175 FSB, but I think it is the RAM (Generic, runs 166 rock steady though).
Mardeth, the 1800+ will overclock less than a 1600+ (the higher multipliers making it impossible to push your FSB up too high). You might want to unlock your 1800 and set the multiplier to a few levels lower, then push the FSB as high as you can in increments of maybe 5 mhz. If you are just going max CPU speed, I guess it would not make much of a difference. If you overclocked your 1800 (1.533GHZ) at the stock multiplier to 1.794GHZ (FSB 156) and overclocked your 1800 with 10.5 multiplier to 1.795 (171FSB), the ladder would be more powerful than the former. I do not know what kind of system you have or what goals you have set for your overclocking. If you are going to overclock a lot, you probably want to unlock it.