I have an A7V with Duron 600@900 using dipswitches. When I ran SANDRA200 to get info on my system, it states my AGP bus speed is 100mhz then add in the 4X AGP, it becomes 400mhz. The PCI bus is set to 1/2 running at 50mhz. Everything is stable which is great, but I'm trying to change the dividers, actually I just want to know how to do it. any help would be greatly appreciated