Ok, I first booted this system up with a Tbird 1700+, and had all the fsb options available. There is a jumper onboard to select 100Mhz, or 133/166. I then tried it with a Duron 750, yet none of the o/c options are available? No voltage, no fsb, no multipliers, nada. I wanted to o/c this Duron using this board, and am very pleasantly suprised. I figured maybe the fsb options were only for 133/166, so I tried, and it worked! I've never been able to get his processor above 933 before on other boards. The problem is, even w/ the voltage on the chip penciled in to 1.85, it's not 100% stable. I was hoping to use a slightly lower bus freq so I could get it stable, but no options! I have had this processor on other boards, including an Iwill KK266, and a K7S5a, and both offered different fsb and multipliers. (using cheepoman bios on the ECS board). Anyway, am I missing something?