Quote Originally Posted by Epicenter View Post
Generators exist to produce a squarewave of the required amplitude at any frequency, and so do lower-cost solutions like VCOs and fixed-frequency crystal oscillators. You'd just need to sever the clock trace to the CPU and attach your own signal. I don't imagine this would be a problem since the CPU reference frequency seems to be arbitrary and distinct from that of any other component on most overclocker-friendly boards (in the pursuit of separating FSB, PCI, AGP, PCI-Express, and other buses so a rising frequency on one won't interfere with proper operation of the rest.)
I don't think it's independent, (related to multi of the same frequency)
Then, in order to lock the pll of the cpu, there is probably a sequence starting in the "catch" (not sure of the english term) of the cpu's pll and going at a certain speed up to the fsb value.