I hope im right here...
And absolutly Sorry for my awful english, i hope you can understand this 
Now i have a problem with my Board(Asus A7A266: In the Bios (newest Bios v1012.beta003)i can not justage the Multiplikator. I can`t overclock my AMD 1700+ with 12,5x166 (its a T-Bred) When i use the Jumpermode i can justage the Multiplicators, the FSB can i only justage to 133, not more
! In the Jumperfreemode i can justage the FSB only, not the Multiplicator. Here a Screenshot from my Bios:
I hope anywhere can help me or can patch the Bios for a good Overclocking
Best regarts
DIGIXP2001