I am building an athlon c 1.2 gig @266 fsb cpur with A7M266 mobo. I plan on using the jumperless feature and adjusting cpu frequency in the bios. What is the proper setting for the clock muliplier for this chip/mobo combination? Is it 4.5 or 9; and, what should i set the edternal clock frequency to 133 mhz or 266mhz. Any help would be great thanks.